Material Safety Data Sheet: 7-Carboxyheptyltriphenylphosphonium Bromide

Identification

Product Name: 7-Carboxyheptyltriphenylphosphonium Bromide
Chemical Formula: C26H30BrO2P
Synonyms: Heptanephosphonium, Carboxyheptyltriphenylphosphonium bromide
Use: Used as a reagent in organic synthesis and in research laboratories
Supplier: Name and contact data typically found on packaging or official documentation
Emergency Contact: Local emergency services or supplier’s emergency line

Hazard Identification

GHS Classification: Skin irritation, serious eye irritation, harmful if swallowed
Hazard Statements: Causes skin and eye irritation, may be harmful if inhaled, ingestion can lead to gastrointestinal discomfort
Signal Word: Warning
Pictograms: Exclamation mark, health hazard
Precautionary Statements: Avoid contact with skin, wash hands after handling, wear eye and face protection

Composition / Information on Ingredients

Chemical Identity: 7-Carboxyheptyltriphenylphosphonium Bromide
Common Name: Triphenylphosphonium salt
CAS Number: 123456-78-9 (for demonstration; check the correct number before use)
Purity: Typically greater than 98%
Impurities: Trace triphenylphosphine oxide, related phosphonium salts in minor quantity

First Aid Measures

Inhalation: Move person to fresh air promptly, provide oxygen if breathing becomes difficult, seek medical attention for persistent symptoms
Skin Contact: Remove contaminated clothing, wash thoroughly with soap and water, call a physician if irritation develops or persists
Eye Contact: Rinse eyes immediately under running water for at least 15 minutes, lift upper and lower eyelids occasionally, obtain medical attention
Ingestion: Rinse mouth thoroughly with water, do not induce vomiting, seek immediate medical advice and show product details
Medical Attention: Symptomatic treatment as required, monitor for delayed symptoms

Fire-Fighting Measures

Suitable Extinguishing Media: Use water spray, foam, dry chemical, or carbon dioxide for small fires
Unsuitable Extinguishing Media: Strong water streams can cause product migration
Special Fire Hazards: Product decomposition may give off toxic fumes including carbon monoxide, oxides of phosphorus, hydrogen bromide
Protective Equipment: Wear full protective gear and self-contained breathing apparatus, avoid inhaling vapors and smoke
Additional Information: Use fire-fighting methods suitable for surrounding conditions, isolate area

Accidental Release Measures

Personal Precautions: Keep unprotected personnel away, ventilate area, avoid inhalation and skin contact
Protective Equipment: Chemical resistant gloves, safety goggles, lab coat, and respiratory protection in cases of significant spill
Spill Cleanup: Sweep up material using non-sparking tools, avoid raising dust, transfer to a suitable closed container for disposal, wash spill site after pickup
Environmental Precautions: Prevent entry into drains, sewers, or waterways, inform appropriate authorities if significant environmental contamination occurs

Handling and Storage

Handling: Avoid generating dust, work in a well-ventilated space, use fume hood for weighing or transfers, prevent contact with skin, eyes, and clothing
Storage Conditions: Store product in a cool, dry, well-ventilated location in tightly sealed original packaging, away from strong oxidizers and moisture
Specific Requirements: Use suitable secondary containment to minimize risk of leaks or accidental releases, provide labeling clearly identifying chemical hazards, store apart from food and drink

Exposure Controls and Personal Protection

Engineering Controls: Use chemical fume hoods and local exhaust to reduce vapor and dust exposure, employ splash guards and impermeable surfaces
Personal Protective Equipment: Wear chemical-resistant gloves such as nitrile, safety goggles or face shields, long-sleeved protective clothing, and closed footwear
Respiratory Protection: Use NIOSH-approved respirator for dust or vapor exposure in the absence of proper ventilation
Exposure Limits: No occupational exposure limits established; minimize exposure by good laboratory practices

Physical and Chemical Properties

Appearance: Off-white to pale yellow crystalline powder
Odor: Odorless or faint chemical odor
Melting Point: Range generally between 200 - 220°C (varies with purity)
Boiling Point: Decomposes before boiling
Solubility: Soluble in water and polar organic solvents
Partition Coefficient: Log P not established, likely low due to ionic nature
pH (1% solution): Around neutral to slightly basic
Vapor Pressure: Negligible at ambient temperature
Decomposition Temperature: Above 220°C with potential for hazardous fumes
Other Properties: Stable at standard temperature and pressure when stored dry and away from strong oxidizers

Stability and Reactivity

Chemical Stability: Product remains stable under recommended storage and use conditions
Possible Hazardous Reactions: Violent reactions with strong oxidizing agents, possible decomposition under extreme heat resulting in hazardous by-products
Avoidance: Moisture, extreme heat, incompatible reagents such as nitric acid or chlorine
Decomposition Products: Production of phosphine oxides, carbon monoxide, and corrosive hydrogen bromide gas possible when subjected to combustion or decomposition

Toxicological Information

Exposure Routes: Skin, eyes, inhalation, ingestion
Acute Effects: Skin and eye irritation, upper respiratory tract discomfort on inhalation, digestive disturbance if ingested
Chronic Effects: Possible skin sensitization after repeated exposure, long-term effects not fully studied
Toxicological Data: No established LD50 or LC50 data; based on category, expected to be moderately hazardous
Carcinogenicity: Not listed by IARC, NTP, or OSHA as a carcinogen
Additional Health Hazards: Symptoms like redness, itching, headache, nausea may occur, especially in unventilated settings

Ecological Information

Ecotoxicity: Limited data available, ionic structure may pose moderate toxicity to aquatic life, avoid release to environment
Persistence and Degradability: Product likely persists in water and soil due to poor biodegradability, potential for cumulative environmental load
Bioaccumulation: Low due to water solubility and ionic character, bioaccumulation not expected
Mobility in Soil: Readily migrates with water movement, risk of groundwater contamination in case of large spills
Additional Harmful Effects: Product may disrupt microbial communities in wastewater and activated sludge systems

Disposal Considerations

Waste Handling: Treat contaminated material and residues as hazardous waste, collect in suitable containers for licensed chemical disposal company
Disposal Methods: Incinerate in a chemical incinerator equipped with afterburner and scrubber, or dispose in accordance with local, regional, and national environmental regulations
Contaminated Packaging: Rinse containers thoroughly before discarding, avoid reuse, follow local disposal rules for hazardous chemical containers
Precaution: Do not dispose into soil, waterways, or open drains; prevent dispersal of dust or powder

Transport Information

UN Number: Check local and international guidelines for exact assignment based on amount and packaging
Transport Hazard Class: Not classified as dangerous under most regulatory frameworks, but check specific shipment codes
Packing Group: Consult current transport rules for exact group
Marine Pollutant: Not designated but prevent bulk releases into water
Special Transport Precautions: Ensure containers are tightly closed and clearly labeled, store and transport upright, protect from direct sunlight and moisture, carry transport documentation with emergency instruction contact details

Regulatory Information

Federal Regulations: Not specifically listed under TSCA, SARA, CERCLA or RCRA hazardous chemicals, but general chemical regulations apply
State Regulations: Evaluate local regulations including worker safety and environmental disposal rules
Labeling Requirements: Conform to OSHA Hazard Communication Standard, GHS, and local health and safety guidelines
Restrictions: For laboratory or research use only, not for human or animal consumption, not approved for food, drug, or cosmetic applications
Other Regulatory Details: Safety data sheet must be provided with shipments, up-to-date certificates with purity analysis required for regulated institutions