Product Name: Tetraethylammonium Hydrogensulfate
Chemical Formula: C8H21NO4S
Molecular Weight: 243.32 g/mol
Synonyms: Tetraethylammonium hydrogen sulphate; TEAHS
CAS Number: 16087-30-8
Manufacturer: Laboratory supplier or chemical distributor
Contact Information: Supplier address, phone, and emergency contact details
Hazard Class: Acute toxicity (oral, inhalation), corrosive to skin and eyes
GHS Classification: Skin corrosion/irritation Category 2, Serious eye damage/eye irritation Category 1
Signal Word: Danger
Hazard Statements: Causes severe skin burns and eye damage; harmful if swallowed or inhaled
Precautionary Statements: Wear protective gloves, clothing, eye and face protection; do not breathe dust or mist; wash thoroughly after handling; seek medical advice if exposed
Substance: Tetraethylammonium Hydrogensulfate
Chemical Identity: 100%
Other Constituents: No relevant impurities
Ingredient Formula: C8H21NO4S
CAS Number: 16087-30-8
Inhalation: Move person to fresh air, seek medical attention if symptoms develop, provide oxygen if breathing is difficult
Skin Contact: Flush affected area with plenty of water for at least 15 minutes, remove contaminated clothing, seek medical attention for persistent irritation
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses, continue rinsing, get immediate medical attention
Ingestion: Rinse mouth, do not induce vomiting, give water if conscious, seek medical help
Most Important Symptoms: Burning sensation, cough, shortness of breath, redness, pain, blisters, severe eye damage possible
Suitable Extinguishing Media: Water spray, alcohol-resistant foam, dry chemical, carbon dioxide
Unsuitable Extinguishing Media: No specific restrictions known for the chemical
Hazardous Decomposition Products: Nitrogen oxides, sulfur oxides, carbon oxides, toxic fumes
Special hazards: Fire promotes release of toxic or corrosive gases
Protective Equipment: Self-contained breathing apparatus, fully protective suit
Fire-Fighting Instructions: Move containers from fire area if you can do so safely, stay upwind, prevent runoff from entering drains or water sources
Personal Precautions: Ensure adequate ventilation, wear respiratory protection if dust is generated, avoid contact with skin and eyes
Environmental Precautions: Prevent entry into sewers, surface water, and soil
Cleanup Methods: Use non-sparking tools, collect spilled material in a suitable container, avoid raising dust, wash spill area with plenty of water, ventilate area
Containment: Stop leak if it can be done without risk, isolate area and restrict access until clean-up is complete
Safe Handling: Handle in a chemical fume hood to avoid dust exposure, avoid ingestion and inhalation, use appropriate personal protective equipment
Hygiene Practices: Wash hands and face after work, do not eat, drink, or smoke while handling the chemical
Storage Requirements: Store tightly closed in a cool, dry, well-ventilated area away from incompatible substances including strong oxidizers and acids
Packaging Materials: Use chemically resistant containers, clearly labeled
Incompatibilities: Oxidizing agents, strong bases, moisture might cause degradation
Occupational Exposure Limits: No established limits by OSHA, ACGIH, or NIOSH
Engineering Controls: Use local exhaust ventilation, eye wash stations, and safety showers
Personal Protective Equipment: Safety goggles, face shield, chemical-resistant gloves (nitrile, neoprene), lab coat, appropriate respiratory protection for dusts or vapors
Environmental Exposure Controls: Use containment methods to avoid environmental contamination, treat effluents in accordance with local regulations
Appearance: White crystalline solid
Odor: No characteristic odor
Odor Threshold: Not available
pH: Acidic in aqueous solution
Melting Point: 257–260°C
Boiling Point: Decomposes before boiling
Flash Point: Not flammable
Evaporation Rate: Not applicable
Flammability: Not flammable
Explosion Properties: No explosive properties detected
Vapor Pressure: Negligible at ambient temperature
Vapor Density: Not applicable
Density: 1.1–1.3 g/cm3 (approximate)
Solubility In Water: Soluble
Partition Coefficient (n-octanol/water): Not determined
Auto-ignition Temperature: Not self-igniting
Decomposition Temperature: Above 250°C with potential emission of toxic fumes
Chemical Stability: Stable under normal temperatures and storage conditions
Conditions to Avoid: Moisture, incompatible materials, high temperatures
Incompatible Materials: Oxidizing agents, strong acids, and bases
Hazardous Decomposition Products: Carbon oxides, nitrogen oxides, sulfur oxides, toxic gases upon thermal decomposition
Polymerization: No hazardous polymerization expected
Reactivity: No known hazardous reactivity under recommended conditions
Acute Toxicity: May cause harmful effects if swallowed, inhaled, or upon skin contact; LD50 data for similar compounds indicate moderate toxicity
Skin Corrosion/Irritation: Corrosive to skin, can cause burns and ulceration
Serious Eye Damage/Irritation: Corrosive, risk of serious damage and vision impairment
Respiratory or Skin Sensitization: Not classed as a sensitizer but dusts may irritate airways
Germ Cell Mutagenicity: No relevant data available
Carcinogenicity: Not listed as a known carcinogen
Reproductive Toxicity: No available animal or human data
Potential Health Effects: Inhalation of dust causes respiratory irritation; ingestion risks burns to mouth, throat, and stomach; direct contact causes severe eye and skin damage
Ecotoxicity: No specific data, likely to be toxic to aquatic organisms due to ammonium and sulfate components
Persistence and Degradability: Chemical degrades in water, not persistent in the environment
Bioaccumulative Potential: Likely low, not expected to bioaccumulate significantly
Mobility in Soil: Likely mobile in aqueous environments
Other Adverse Effects: Disruption of aquatic habitat and pH possible from large quantities
Precautions: Prevent discharge to natural waters or sewers without proper treatment
Waste Disposal Method: Treat as hazardous waste, dispose of in accordance with local, regional, and national regulations
Disposal Containers: Use clearly labeled, sealed chemical waste containers
Precautions: Do not release into drains, water courses, or soil
Recycling/Reuse: Not recommended, due to possible contamination risks
Contaminated Packaging: Clear of residues before recycling or disposal, treat as hazardous waste if not cleaned
UN Number: Assigned if classified as dangerous under transport regulations
Proper Shipping Name: Tetraethylammonium Hydrogensulfate
Transport Hazard Class: Check relevant international and local classification
Packing Group: Consult transport authority
Special Precautions: Keep packaging secure, avoid moisture and extreme temperatures, transport with compatible materials only
Environmental Hazards: Not marine pollutant unless specified under local laws
Regulatory Information: Ensure compliance with road, air, or sea regulations as relevant
OSHA: Not specifically regulated as hazardous
EPA: Does not appear on hazardous substance lists, compliance with chemical control laws required
SARA Title III: Not listed under SARA Section 313
TSCA: Listed as a chemical substance
REACH: Review status before import or manufacture within the EU
Other Requirements: Chemical hygiene plans should reflect hazards, workplace labeling and safety training are required, consult all applicable national, state, and local regulations
