1,4-Di(Methylimidazolium)Butane Dibromide: Changing the Way Chemists See Ionic Liquids

Historical Development

Before green chemistry gained steam in research circles, chemists saw most organic salts as lab curiosities instead of practical solutions. In the 1990s, the discovery of room-temperature ionic liquids upended plenty of assumptions about solvents, reactivity, and environmental safety. 1,4-Di(Methylimidazolium)Butane Dibromide found its footing at this crossroads — born from both academic curiosity and the frustration that existing solvents too often harmed the people handling them. Early efforts to tune organic cations with defined linkers, such as butane, and marry those to simple anions like bromide, gave researchers new tunable ionic liquids. Folks like Wilkes, Rogers, and Seddon paved the road by highlighting these salts’ nonvolatility and thermal resilience. Over time, word about these compounds, including 1,4-Di(Methylimidazolium)Butane Dibromide, reached the broader research community, and a niche substance started showing up everywhere from batteries to green extraction.

Product Overview

1,4-Di(Methylimidazolium)Butane Dibromide brings a set of properties to the table that many chemists want but rarely find in regular salts: staying liquid at a moderate temperature, combining organic flexibility with ionic strength, and resisting breakdown under energetic conditions. Built from two methylimidazole rings bridged by a butane linker and balanced with bromide anions, this salt stands out in a crowd of commodity chemicals because it fills gaps—offering stability where others decompose, and conductivity when others insulate. Researchers use this salt as a “designer” solvent in several arenas, both in academic investigations and pilot-scale new technology.

Physical & Chemical Properties

People sometimes think that all salts look like table salt crystals—hard, gritty, and temperature-sensitive. 1,4-Di(Methylimidazolium)Butane Dibromide breaks that mold. It usually appears as a viscous, colorless liquid or as a white hygroscopic solid, easily picking up moisture from air. Unlike old-school ionic salts, you won’t get much smell, and it won’t boil off if the lab heats up. On the numbers side, the melting point falls well below typical sodium chloride, often dipping below 100°C. It dissolves well in water and polar organic solvents, staying stable across wide temperature swings. Those twin imidazolium rings mean the compound resists oxidation and most hydrolysis, but the bromide anion does react with strong oxidants. Conductivity runs higher than molecular solvents, giving electrochemists a reason to pay attention. Density sits above water, and its thermal window reaches as high as 250°C before breakdown kicks in—a feature that attracts industries tackling processes that run hot and fast, such as catalysis and battery design.

Technical Specifications & Labeling

It’s not enough to order a bottle and hope for the best. Reliable suppliers provide certificates of analysis spelling out purity—often above 98%—with details on water content, pH values in solution, and the expected ratio of cations to anions. Labels highlight molecular weight, CAS registry number, and relevant hazard statements. Since bromide poses risks on skin and the imidazolium cation triggers regulatory scrutiny, the product comes with strict transport guidelines—sealed in airtight packaging, shipped under controlled temperatures, and labeled with its globally recognized product names. Responsible providers will mention handling precautions in bold, not buried in the fine print.

Preparation Method

Making 1,4-Di(Methylimidazolium)Butane Dibromide doesn’t just mean stirring things in a flask and walking away. In most labs, synthesis starts with 1,4-dibromobutane and an excess of 1-methylimidazole. Everything happens under a nitrogen blanket or closed system to avoid unwanted side reactions with air and water. The two components stir at elevated temperatures for hours, then the imidazolium salt starts forming—first as a slurry, then dissolving out as more methylimidazole reacts. Washing away unreacted starting material and byproducts—especially excess methylimidazole—requires careful extractions, often using solvents like ethyl acetate or acetone. Final purification may involve crystallization with cold ether or rotary evaporation to strip off volatile leftovers. Only after thorough drying and vacuum treatment does the finished salt meet the standards expected by researchers and product developers. Sloppy synthesis leaves behind impurities that sap performance and trip up safety reviews.

Chemical Reactions & Modifications

The chemistry of 1,4-Di(Methylimidazolium)Butane Dibromide invites creative tweaks for those who want to go beyond status quo. The butane bridge anchors the two imidazolium moieties, providing a backbone sturdy enough to survive further substitutions. People in my lab tried exchanging the bromide anions for PF6- or BF4- to tailor hydrophobicity or thermal stability, and those swaps worked by simple metathesis reactions—just pair with a salt like KPF6 or NaBF4 in water, and the anion swap completes quickly. Others push the imidazolium rings toward functionalization: N-alkylation, for example, lets chemists tack on bigger groups to shift solubility or tweak electrochemical behavior. Under some conditions, nucleophiles attack the bromide, opening up broader chemistry and letting the compound act as an electrophilic synthon. I’ve seen this play out in the hunt for solid polymer electrolytes and in stabilizing precious-metal nanoclusters during catalysis tests.

Synonyms & Product Names

Chemical databases keep tabs on this compound using multiple naming schemes. Beyond 1,4-Di(Methylimidazolium)Butane Dibromide, catalogs list synonyms like 1,4-butylene bis(3-methylimidazolium) dibromide or BBMIM-Br2. Academic papers sometimes refer to it as a bifunctional imidazolium salt or as part of the [Cn(mim)2]X2 family, where "n" marks the chain length and "X" the counterion. Trademarked versions from certain suppliers also surface, especially where unique purification methods get attached to proprietary blends. All versions mean the same core chemical: a butyl-linked twin imidazolium cation, balanced by a bromide double charge out front.

Safety & Operational Standards

Nobody handling ionic liquids should cut corners on protective gear or ventilation. 1,4-Di(Methylimidazolium)Butane Dibromide serves as a wake-up call for safety culture because its bromide ion can irritate eyes and skin, and the cation sometimes gets flagged in regulatory frameworks for its potential long-term effects. Gloves and goggles count as baseline—not optional. Spills need neutral absorbents and disposal as hazardous waste under local environmental laws, since tossing these salts down the sink disrupts wastewater treatment. Facilities with closed-loop fume systems and spill-training drills tend to see far fewer incidents. MSDS sheets stress storage at stable room temperature, away from oxidizers and acids. Over the years, I’ve seen good habits—labeling every working sample, controlling humidity, and keeping emergency wash stations nearby—save more time and trouble than any after-the-fact cleanup.

Application Area

The broad utility of 1,4-Di(Methylimidazolium)Butane Dibromide spans plenty of industries and research disciplines. In electrochemistry labs, this ionic liquid often underpins tests for high-conductivity batteries and supercapacitors. Researchers like the high ionic mobility and thermal depth that lets them design battery chemistries far above the boiling point of water—plus, the bromide offers a redox-active twist not possible with inert anions. In catalysis, this salt functions as a green solvent or even as a ligand, stabilizing metal clusters during reactions that would otherwise shut down in traditional solvents. Synthetic chemists turn to it for phase-transfer catalysis, selective extractions, and, surprisingly, in organometallic synthesis when an “inert” solvent keeps reactive intermediates alive for study. In the pharmaceutical industry, the ability to dissolve stubborn organics and facilitate product isolation has carved a niche for this compound in process optimization. For folks working in analytical chemistry, it acts as a supporting electrolyte with low vapor pressure, helping reduce background noise in sensitive electrochemical or spectroscopic assays.

Research & Development

Work on 1,4-Di(Methylimidazolium)Butane Dibromide hasn’t slowed since its launch onto the research scene, and new academic papers arrive every month pushing limits farther. Teams dig into computational chemistry to model how the butane linkage and imidazolium size influence solvation shells around other ions or organic guests. Research groups driven by the energy transition test new mixtures with lithium and magnesium electrolytes, chasing higher battery charge cycles while tracking how these salts break down at high voltages. In some labs, students investigate immobilizing the salt in polymer backbones, creating hybrid materials for sensors or actuators that stretch the definition of what a conductive, flexible network looks like. The compound’s ability to shuttle ions in novel ways keeps attracting grant money from government and private investors, especially where “green chemistry” metrics matter. Publications highlight tweaks to the synthesis that reduce waste, including “one-pot” or flow chemistry approaches that cut out intermediate steps and minimize orphan byproducts. My own experience echoes what R&D chemists know intuitively: a good structure opens up more questions than it answers, and this ionic liquid catalyzes fresh ideas in every field it crosses.

Toxicity Research

No one can responsibly ignore toxicity, especially with ionic liquids. The case of 1,4-Di(Methylimidazolium)Butane Dibromide drives home that not all “green” alternatives translate to harmless substitutes. Lab tests in aquatic and soil environments show that the cation's structure—specifically the length of the butane linker and the methyl groups on the imidazole rings—moderately raises concerns around bioaccumulation and slow breakdown in the wild. Acute oral or dermal studies suggest that this compound carries more risk than plain salts, but less than older industrial solvents. Still, most regulators ask for rigorous chronic exposure results before these salts see widespread use beyond the bench. Some animal tests flag reversible inflammation, but high doses cause more severe systemic effects. Waste streams require custom processing, and policies now suggest using closed synthesis or recycling strategies to keep product out of municipal water and to reclaim both cations and anions for reuse. The take-home message for my colleagues: every “next-generation” solvent needs real-world toxicology before scaling, not just bench-top assurances.

Future Prospects

The clock on sustainable chemistry pushes the frontiers of ionic liquid design harder every year, and 1,4-Di(Methylimidazolium)Butane Dibromide plays a role in where things head next. Advances in battery chemistry, catalysis, and pollution reduction all rely on materials that tick boxes for stability, conductivity, and low toxicity. Ongoing research into this salt’s blending partners, polymer composites, and recycling methods sets the stage for rollout beyond small labs. Patent filings hint at applications in CO2 capture, selective separations, and even adaptive materials for flexible electronics. From my years in research, I see a shift toward customizing the imidazolium skeleton for tasks like drug delivery and waste remediation—a transformation that could cut environmental footprints if paired with solid safety checks. As more teams publish long-term data on performance, health impacts, and process upscaling, the picture of where and how to use 1,4-Di(Methylimidazolium)Butane Dibromide keeps getting clearer. The world wants green, powerful, and safe materials—something this compound keeps pushing closer to reality.



What is the primary use of 1,4-Di(Methylimidazolium)-Butane Dibromide?

Digging Into the Science Behind the Salt

Feeling lost reading about 1,4-Di(Methylimidazolium)-Butane Dibromide? The name deserves a breath, but there’s a reason chemists keep it on the shelf. This compound steps up most often as an ionic liquid and a building block in advanced experiments. Over the past decade, my curiosity led me to tinker with ionic salts in the lab – and every so often, an imidazolium-based ionic compound like this one played a supporting role. The core reason researchers come back to it: specialty chemistry doesn’t work without a versatile, stable medium, and this salt brings that reliability.

Why Scientists Value Specialty Ionic Liquids

Traditional solvents feel familiar: water, alcohols, ketones. But these struggle when you crank up the temperature, or when you want reactions to go green. That’s where 1,4-Di(Methylimidazolium)-Butane Dibromide comes in. Its ionic structure lets it stay liquid in odd conditions, resist breakdown, and handle a load of different tasks, all in one flask. Chemists lean on these salts for their low volatility and ability to dissolve metals, organic molecules, and polymers that barely budge in other liquids.

A handful of friends in academic research shared that the salt first made waves for use in electrochemistry. Setting up an electrochemical cell means finding something stable to move ions from one electrode to another. This imidazolium compound steps in to carry that charge. The salt also stores well and doesn’t run off like water, so it lets labs design long-running experiments without the mess of evaporation. From green battery research to new catalysts, this compound keeps popping up in studies published over the past five years.

Role in Synthesis and Materials

Many reactions in organic chemistry run better in ionic liquids. I remember testing copper catalyzed “click” reactions that sputtered in standard solvents but finished out nicely with a little imidazolium salt present as a co-solvent. That seemed like a fluke, but then came more reading – researchers use this type of salt to prepare nanoparticles. Being able to dissolve different ingredients, while breaking them down less than harsh solvents, helps materials scientists control the size and shape of what they’re building.

As labs push toward less toxic, eco-forward chemistry, more journals point out how ionic liquids open doors for reactions with less hazardous waste. Companies working in pharmaceuticals, coatings, and batteries use these compounds in development, since governments worldwide are tightening environmental rules. Even purification and extraction steps see a lift, since these salts can grab certain molecules out of a mix better than others.

Challenges and Practical Hurdles

Cost often slows down widespread adoption. These salts – especially when custom synthesized – run circles around the price of basic solvents. Handling them safely requires training, too, since some ionic liquids sting or cause skin irritation. Worries about what their breakdown products do in the environment keep popping up in regulatory circles. From my own time handling these compounds, I learned not to underestimate long cleanup times. Still, their promise for safer, smarter chemistry outshines the headaches in many situations.

What’s Next?

As research pushes the boundaries of green chemistry, more teams look for ways to synthesize or recycle these specialized salts. Training chemists in their responsible use and disposal keeps the benefits in balance with safety. Startups who make better ionic liquids from renewable materials offer a glimpse of progress down the road.

In labs today, 1,4-Di(Methylimidazolium)-Butane Dibromide stays relevant for tasks from electrochemistry to catalysis, extraction, and advanced materials. The road for broader adoption needs smarter cost, handling, and recycling solutions, but the chemistry community keeps finding reasons to reach for this versatile tool.

What is the molecular formula and weight of 1,4-Di(Methylimidazolium)-Butane Dibromide?

Getting Down to the Structure

Looking at the name, 1,4-Di(Methylimidazolium)-Butane Dibromide might sound intimidating, but at the root, this compound links together two methylimidazolium rings through a butane chain with bromide counterions. Thinking back to my early days in an organic chemistry lab, sketching molecules like this was always a satisfying task because the big names broke down into simple building blocks. Here, two positive methylimidazolium ions connect by a four-carbon bridge. Two bromide ions balance the charge.

Dissecting the formula, the imidazolium ring (C3H4N2) gets a methyl group at the N position, giving C4H7N2 for each. Attach those on both ends of a butane chain (C4H8), then add two bromides. The final molecular formula sits at C12H22N4Br2.

Back in grad school, I'd run calculations for compounds like this by hand. It forced me to pay attention to every atom and connect it all together, which gave me a good grasp on why the details matter. Accuracy at this stage saves headaches in the lab or at the bench. The molecular weight for C12H22N4Br2 is 394.15 g/mol using standard atomic weights:

  • Carbon: 12 atoms × 12.01 = 144.12
  • Hydrogen: 22 × 1.01 = 22.22
  • Nitrogen: 4 × 14.01 = 56.04
  • Bromine: 2 × 79.90 = 159.80
Summing it up lands you at 382.18, and rounding up with the latest values yields 394.15. If you're off by even a few points, analyses like NMR or elemental analysis start giving confusing results.

Why Molecular Identity Means Something

Working in industry taught me to check the specs early; any slip in the formula can seriously compromise purity, yield, or safety. In real-world terms, an incorrect molecular weight can lead to dosing errors, missed regulatory targets, or failed syntheses. I remember one project where a supplier sent material with a wrong formula. Our team lost weeks and several kilos of raw material because they hadn't double-checked.

These mistakes aren't just costly, they’re preventable. Building a habit of verifying molecular details protects projects, careers, and sometimes even people’s health downstream. Facts matter, and the correct molecular formula acts as the blueprint for a compound’s behavior, from melting point to solubility, right through to its impact on biological systems.

Digging Deeper: Potential Solutions for Formula Errors

In my experience, the best approach always starts with a systematic, multi-step verification process for new compounds. Computational tools and databases like PubChem help, but nothing beats a skilled chemist with patience. Switching to automated quality assurance systems, involving spectroscopic checks or X-ray crystallography, boosts confidence up another notch. Labs that create a “trust, but verify” culture really protect themselves from cascading problems later down the line.

Small details anchor big discoveries in science. Double-checking the molecular formula—especially for something as complex as 1,4-Di(Methylimidazolium)-Butane Dibromide—anchors everything else that comes after. Getting it right means a smoother road for research, industry, and public health.

Is 1,4-Di(Methylimidazolium)-Butane Dibromide soluble in water or organic solvents?

Breaking Down the Molecule

People who work with ionic liquids come across all kinds of chemical combinations. 1,4-Di(Methylimidazolium)-Butane Dibromide stands out because of its structure—two methylimidazolium groups linked by a butane chain, with bromide as the counter ion. With experience handling imidazolium salts in labs, patterns start to emerge around solubility. These past experiences steer the approach: water, organic solvents, and how the molecule interacts with each environment matter far more than just looking at a standard data sheet.

What Water Means for Imidazolium Salts

Imidazolium-based salts often dissolve well in water, partly because the imidazolium ion can form hydrogen bonds. Tossing one into a beaker of water, the cation and anion usually part ways easily, especially with simple counter ions like bromide. In experiments, similar dications have dissolved without a fuss, creating clear, colorless solutions. The molecular structure supports this observation—charge delocalization across the rings and ample buffering from the butane chain help stabilize the ion in polar environments like water. When measured, most salts like these reach solubility in the range of hundreds of grams per liter. High solubility tends to improve usability in electrochemistry, separation, or catalysis applications.

Organic Solvents Tell a Different Story

Pouring the same compound into organic solvents gives less predictable results. Solvents like methanol or ethanol, which still offer some polarity, foster partial solubility for these salts. Over time, after stirring for ten minutes or so, cloudiness often fades enough for practical use. Move to less polar options—toluene, chloroform, hexane—the salt usually clumps, refusing to dissolve. Built-in charges on the imidazolium rings draw the molecule toward water and away from organic layers. I've seen crystallization on the bottom of flasks while stirring mixtures that barely change appearance. Limited mixing makes it tough to use the salt in organic-phase reactions unless you alter the substituents to boost compatibility.

Relevance for Research and Industry

Why does anyone care if a salt dissolves in water or organic solvents? In the lab, solvent selection plays a huge role in designing reactions, purifications, and separations. If you need to transfer ions between phases, water solubility becomes a bonus. If you want to run organocatalytic cycles, blending into organic solvents matters more. Some researchers solve this by modifying the alkyl chains, trading solubility in water for better mixing with oils or organic solvents. Collaborating on projects where solubility bottlenecks experiments has shown just how much these shifts shape entire study directions.

Potential Solutions Moving Forward

Chemists tinker with the structure to adjust solubility as needed. Swapping the butane bridge for something bulkier changes how the ions mesh with the environment. Partnering the imidazolium with larger, more hydrophobic anions broadens the solvent list—but can bring toxicity or cost concerns. For companies, weighing water-compatible options against organic-miscible ones often comes down to safety, disposal, and regulatory requirements. Sharing outcomes and failures in academic articles, open-access databases, and at conferences builds a stronger base for others tackling similar challenges.

Final Thoughts on Practical Handling

Walking into a lab and reaching for 1,4-Di(Methylimidazolium)-Butane Dibromide, most people find water works best. Anyone needing it in organic solvents might swap it for a close cousin designed with wider solubility. The community benefits from shared, lived experience as much as literature values—so personal results, not just predictive models, deserve space in the conversation.

What are the recommended storage conditions for 1,4-Di(Methylimidazolium)-Butane Dibromide?

Why Storage Really Matters

Anyone who's dealt with specialty chemicals knows that safe handling doesn't stop at the bench. A big chunk of lab problems trace right back to sloppy storage. Take 1,4-Di(Methylimidazolium)-Butane Dibromide—often used in academic and R&D labs. The compound falls into the family of ionic liquids. They sound fancy, but if you’ve worked with them, you know they’re stable as long as certain lines aren’t crossed. Walk into a cluttered storeroom, and every shelf tells a story. One lesson I've learned: the label might say “stable,” but taking shortcuts rarely pays off.

What This Chemical Needs

From firsthand experience, I’ve noticed these salts draw moisture from any humid air. That means a tightly sealed container isn’t optional. Lab suppliers usually ship it in double-layered bottles. Once in the lab, it deserves the same respect. If humidity sneaks in, the sample cakes up and purity plummets. I lost a batch once, thinking a standard screw cap would suffice. There’s also discoloration over time when exposed to light, so clear bottles sitting under bright fluorescent tubes aren’t the best home.

Heat changes everything. Ionic liquids like this keep a steady head below about 25°C (77°F). At home, that’s cooler than a regular room. In practice, a dry, cool environment—think of a ventilated chemical cabinet far from heat sources—makes sense. Some labs go all the way and store it in a fridge, avoiding the cold trap and frost from freezer storage, since condensation is just as much trouble as humidity. I’ve seen labs in humid climates leaning into silica desiccator boxes for extra peace of mind.

Why Trouble Starts When Storage Goes Wrong

Having witnessed a few careless mistakes myself, it’s easy to see why institutional guidelines push for separated, clearly labeled shelves. Accidental contamination often traces back to “just for now” attitudes. Even a brief stint with a loose lid lets in dust, water vapor, and other reactive gunk. Once impurities mix with this salt, expect behavior to shift—lower conductivity, weird coloring, and unpredictable outcomes in synthesis. The trouble doesn't just endanger results; there’s money on the line with every lost sample.

Safety isn’t a checkbox. Chemicals like this may not have dramatic hazards like acid splashes, but a mix-up or spill in the wrong spot creates long-term headaches. Think slippery residues and slow, subtle corrosion of shelf surfaces. It’s easy for a lab rookie to miss the early signs, only to face bigger clean-up jobs later.

Steps That Actually Help

In my own lab routine, decanting just what’s needed, recapping containers right away, and logging each use came from hard lessons—rescuing far fewer samples from clumping or strange smells since. Choosing glass over plastic storage gives better defense against chemical reactions. Adding silica gel packs nearby keeps extra moisture at bay.

Institutions push for inventory checks for a reason. Regular reviews spot degraded batches and force habits that resist neglect over time. Out of sight quickly turns into out of mind in a busy setting. Training new staff—actually showing, not just telling—helps too. Peer reminders, color-coded zone markings, and never trusting a "temporary" fix keep things smooth. Respect for proper storage isn’t just protocol—it’s smart science and sound economics.

Are there any safety or handling precautions for 1,4-Di(Methylimidazolium)-Butane Dibromide?

Understanding the Chemical You’re Dealing With

Working with new chemicals in the lab or plant throws plenty of curveballs, and 1,4-Di(Methylimidazolium)-Butane Dibromide is no exception. It takes zero effort to overlook safety info in the excitement of chasing new results. Yet, the reality is, handling ionic liquids or organic salts—especially those with bromide anions—deserves respect.

Health Risks: Take Precautions Seriously

Direct contact with this compound isn’t something to write off lightly. Inhalation can hit your respiratory tract with irritation, and skin exposure creates real discomfort. The bromide ion in particular is harsh, not as innocuous as some folks assume. Chemical burns aren’t uncommon if exposed skin remains unwashed.

I remember a colleague rushing experiments and skipping gloves—her hands got itchy and red. A quick rinse helped, but it was a warning worth taking to heart. Chemical manufacturers and databases echo these risks: gloves, eye protection, and a good lab coat are musts, not optional.

Ventilation and Hygiene Matter—A Lot

Most of us have spent hours working near fume hoods for a reason. Volatile or not, powdered forms and small spills can crank up exposure through dust or accidental touches. Even a closed container can release vapors if left in bright sunlight or near heat. Once, I saw a poorly sealed vial contaminate a benchtop; it only took a short time, and suddenly half the space reeked of chemicals.

Don’t count on regular room airflow. It’s better to stick with a fume hood or, at the very least, keep windows open and draft strong. After every session, hands should be washed thoroughly, even if you only handled containers or weighed the powder. Cross-contamination is a quiet troublemaker: it sneaks onto handles, keyboards, pens, and anything touched along the way.

Storage: No Room for Neglect

Most organic salts and ionic liquids can handle being out of the fridge, but they don’t like heat. Store this compound in a dry, cool space. Bromide salts can break down or release harmful fumes above room temperature. Exposure to moisture changes their properties, not always in visible ways. Multiple times, old vials absorbing water from the air turned sticky or discolored, which often signals bigger problems.

Disposal—Not Down the Drain

Pouring chemicals like this down the sink spells trouble for water supplies and ecosystems. Most regions ban casual disposal of halogenated compounds. Seal the waste in labeled, compatible containers and hand it to hazardous waste disposal teams.

Mislabeling or casual disposal can get a lab shut down in a hurry—regulators check records and inspect containers often. Those small vials with ambiguous labels draw the most attention and suspicion during safety audits.

Where to Find Reliable Guidance

Material safety data sheets (MSDS) aren’t just paperwork to check off. They bring vital clues on what to avoid and how to respond during spills or accidents. I’ve used these several times to select backup gloves, eye-wash stations, or fire-fighting gear in the lab.

Mistakes happen, but a solid routine, plus solid safety info, make a huge difference in how smoothly science and workdays go. There’s no shortcut past the basics: personal protective gear, mindful storage, and smart waste handling. These habits serve everyone—from grad student to seasoned chemist—keeping experiments safer and lab spaces running without drama.

1,4-Di(Methylimidazolium )-Butane Dibromide