Product Name: Triethylsilane
Chemical Formula: C6H16Si
CAS Number: 597-34-8
Synonyms: Triethylsilicon hydride, TES
Recommended Uses: Laboratory reagent, reducing agent, hydrosilylation applications
Supplier Information: Identify manufacturing or distribution company, full address, and emergency contact telephone number
Emergency Contact: Chemtrec, 1-800-424-9300 or local emergency services
Classification: Flammable liquid, Acute toxicity (oral), Skin irritation
Hazard Statements: Highly flammable liquid and vapor, harmful if swallowed, causes skin irritation, may cause drowsiness or dizziness
Pictograms: Flame, Exclamation mark
Signal Word: Danger
Precautionary Statements: Keep away from heat/sparks/open flames/hot surfaces, wear protective gloves/eye protection, avoid breathing fumes, wash thoroughly after handling, use only outdoors or in well-ventilated area
Potential Health Effects: Short term exposure might bring dizziness, coughing, headache; longer contact with skin could lead to burns or severe irritation; ingestion can be harmful or even fatal
Chemical Name: Triethylsilane
Common Name: TES
Concentration: 98-100%
Impurities: May contain trace siloxanes or ethanol residues
Additives: No stabilizers or inhibitors usually added
Inhalation: Move person to fresh air, keep at rest, seek medical help if symptoms persist; avoid self-exposure, rescue personnel should use breathing protection
Skin Contact: Remove contaminated clothing, rinse skin thoroughly with water for at least 15 minutes, seek medical attention for persistent irritation
Eye Contact: Rinse eyes carefully with water for several minutes, remove contact lenses if present and easy, continue rinsing, get medical aid
Ingestion: Rinse mouth, never give anything by mouth to an unconscious person, do not induce vomiting, call poison control or physician immediately
Suitable Extinguishing Media: Dry chemical powder, carbon dioxide, alcohol-resistant foam
Unsuitable Media: Water jet can spread fire
Special Hazards: Vapors are heavier than air and may travel along ground, may form explosive mixtures with air, combustion produces carbon oxides, silicon oxides
Protective Equipment: Self-contained breathing apparatus, full protective turnout gear
Advice: Move containers from fire area if safe, cool containers with water spray, keep unnecessary people away
Personal Precautions: Wear chemical-resistant gloves, goggles, and respirator, remove ignition sources, ventilate area
Environmental Precautions: Prevent spillage from entering drains, soil, or waterways; notify authorities of large releases
Cleanup Methods: Absorb with inert material (sand, earth), collect into containers for disposal, ventilate area, wash contaminated surfaces
Decontamination: Wash area with plenty of water, remove all potential reactive residues, avoid creating static electricity
Handling: Open containers with care outdoors or in fume hood, avoid skin and eye contact, avoid inhaling vapor, ground and bond containers when transferring
Storage Conditions: Store in tightly closed containers, keep in cool, well-ventilated area, away from sunlight, heat, open flames, or strong oxidizers
Incompatible Materials: Strong acids, bases, halogens, oxidizing agents
Storage Stability: Shelf life is best under inert atmosphere like nitrogen or argon, moisture and air exposure speed degradation
Occupational Exposure Limits: No established international TLVs, handle as hazardous, minimize exposure
Engineering Controls: Use only in chemical fume hood or with local exhaust ventilation
Personal Protective Equipment: Chemical splash goggles, impervious gloves (nitrile, neoprene), flame-resistant laboratory coat, suitable respirator for vapors
Hygiene Measures: Wash hands thoroughly after handling, remove contaminated clothing and wash before reuse, do not eat, drink, or smoke while using
Environmental Controls: Prevent release to environment, use secondary containment
Appearance: Clear, colorless liquid
Odor: Mild, sometimes fruity or ether-like
Boiling Point: About 107-109°C (225-228°F)
Melting Point: -96°C
Flash Point: 12°C (closed cup)
Autoignition Temperature: About 215°C
Vapor Pressure: 41 mm Hg at 25°C
Density: 0.722 g/mL at 25°C
Solubility in Water: Insoluble, reacts slowly
Solubility in Solvents: Miscible with organic solvents such as ethanol, ether, benzene
Viscosity: Very low, almost as mobile as water
pH: Not applicable
Partition coefficient (n-octanol/water): Expected to be high due to hydrophobic structure
Chemical Stability: Stable if stored under inert atmosphere and proper temperature
Hazardous Reactions: Reacts with strong oxidizers, acids or bases; generates flammable hydrogen gas on interaction with moisture or acids
Conditions to Avoid: Heat, flames, sparks, static discharge, direct sunlight
Incompatible Materials: Halogens, peroxides, strong oxidizing/reducing agents, acids, alkalis
Decomposition Products: Carbon oxides, silicon oxides, hydrogen gas
Polymerization: Not expected; no hazardous polymerization
Acute Toxicity: May cause moderate to severe symptoms if swallowed, inhaled, or absorbed
Skin Corrosion/Irritation: Causes irritation, may cause dermatitis on repeated contact
Eye Damage/Irritation: Direct contact is likely to irritate; serious injury possible
Respiratory Sensitization: Not a known sensitizer, but vapors cause coughing or mild CNS effects
Carcinogenicity: No recognized carcinogenic risk (IARC, NTP, OSHA)
Germ Cell Mutagenicity: No data available, not expected to be mutagenic
Reproductive Toxicity: Data insufficient, use caution
Route-Specific Effects: Inhalation can lead to dizziness or central nervous system depression; ingestion harmful
Chronic Effects: Repeated exposures may aggravate asthma, allergies, or skin conditions
Aquatic Toxicity: Low acute toxicity to aquatic life expected, but forms films and may harm surface organisms
Persistence and Degradability: Degradation in environment may be slow; breaks down via hydrolysis in moist air
Bioaccumulative Potential: Likely to concentrate in organisms due to high partition coefficient
Mobility in Soil: Not water soluble, tends to remain localized but can volatilize
Other Adverse Effects: Avoid product release in water or soil, can interfere with water treatment methods
Disposal Method: Burn in chemical incinerator equipped with afterburner and scrubber, or send to licensed hazardous waste disposal facility
Contaminated Packaging: Empty containers retain residues, treat as hazardous, puncture only after decontamination by trained personnel
Special Precautions: Consult local, regional, or national hazardous waste regulations, avoid landfill or sewer discharge
Recycling: Reuse should be considered only with proper purification and analytical verification
UN Number: UN1993
Proper Shipping Name: Flammable liquid, n.o.s. (contains triethylsilane)
Transport Hazard Class: 3 (Flammable liquids)
Packing Group: II
Marine Pollutant: Not classified as marine pollutant, but spills can affect aquatic systems
Special Precautions: Label clearly, keep container upright, secure in transit, do not transport with incompatible substances
Transport Regulations: Follow all transportation and shipping regulations of DOT, IATA, IMDG
OSHA: Regulated as flammable hazardous chemical
TSCA: Listed
EINECS: Listed (209-886-7)
REACH: Subject to registration under REACH regulation in the European Union
SARA Title III: Does not contain chemicals subject to SARA 313 reporting
California Proposition 65: No chemicals known to cause cancer or reproductive toxicity
Other Worldwide Regulations: Complies with most international transport and workplace safety directives, check national lists for updates
Workplace Labeling: Clearly mark all containers with hazard symbols and substance name, maintain safety data feedback in work areas
