Trichlorosilane SDS
SECTION 1: Identification of the substance/mixture and of the company/undertaking
Product identifier
- Product name： Trichlorosilane
- CAS： 10025-78-2
Relevant identified uses of the substance or mixture and uses advised against
- Relevant identified uses： For R&D use only. Not for medicinal, household or other use.
- Uses advised against： none
Company Identification
- Company：Chemicalbook.in
- Address：5 vasavi Layout Basaveswara Nilayam Pragathi Nagar Hyderabad, India -500090
- Telephone：+91 9550333722
SECTION 2: Hazards identification
Classification of the substance or mixture
Flammable liquids, Category 1
Pyrophoric liquids, Category 1
Acute toxicity - Category 4, Oral
Skin corrosion, Sub-category 1A
Acute toxicity - Category 4, Inhalation
GHS label elements, including precautionary statements
-
Pictogram(s)
- Signal word Danger
H224 Extremely flammable liquid and vapour
H250 Catches fire spontaneously if exposed to air
H302 Harmful if swallowed
H314 Causes severe skin burns and eye damage
H332 Harmful if inhaled
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P233 Keep container tightly closed.
P240 Ground and bond container and receiving equipment.
P241 Use explosion-proof [electrical/ventilating/lighting/...] equipment.
P242 Use non-sparking tools.
P243 Take action to prevent static discharges.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
P222 Do not allow contact with air.
P231+P232 Handle and store contents under inert gas/....Protect from moisture.
P264 Wash ... thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P271 Use only outdoors or in a well-ventilated area.
P303+P361+P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse affected areas with water [or shower].
P370+P378 In case of fire: Use ... to extinguish.
P302+P334 IF ON SKIN: Immerse in cool water or wrap in wet bandages.
P301+P317 IF SWALLOWED: Get medical help.
P330 Rinse mouth.
P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P363 Wash contaminated clothing before reuse.
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P316 Get emergency medical help immediately.
P321 Specific treatment (see ... on this label).
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P317 Get medical help.
P403+P235 Store in a well-ventilated place. Keep cool.
P405 Store locked up.
P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.
Other hazards which do not result in classification
no data available
SECTION 3: Composition/information on ingredients
Substance
- Chemical name: Trichlorosilane
- Common names and synonyms: Trichlorosilane
- CAS number: 10025-78-2
- EC number: 233-042-5
- Concentration: 100%
SECTION 4: First aid measures
Description of necessary first-aid measures
Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention. See Notes.
Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention .
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Rinse mouth. Do NOT induce vomiting. Give nothing to drink. Refer for medical attention .
Most important symptoms/effects, acute and delayed
Inhalation causes severe irritation of respiratory system. Liquid causes severe burns of eyes and skin. Ingestion causes severe burns of mouth and stomach. (USCG, 1999)
Indication of immediate medical attention and special treatment needed, if necessary
No specific antidote is available /for chlorosilanes/, but first aid treatment consists of copious irrigation with water, & subsequent treatment is as for chemical burns in general. Chlorosilanes
SECTION 5: Firefighting measures
Suitable extinguishing media
If material on fire or involved in fire: Do not extinguish fire unless flow can be stopped. Use "alcohol" foam, dry chemical or carbon dioxide. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. Do not use water on material itself. If large quantities of combustibles are involved, use water in flooding quantities as spray and fog. Use water spray to knock-down vapors.
Specific hazards arising from the chemical
Special Hazards of Combustion Products: Toxic hydrogen chloride and phosgene gases may form in fires. Behavior in Fire: Difficult to extinguish; re-ignition may occur. Vapor is heavier than air and may travel a considerable distance to a source of ignition and flash back. (USCG, 1999)
Special protective actions for fire-fighters
NO water. Use AFFF, powder, carbon dioxide. In case of fire: keep drums, etc., cool by spraying with water. NO direct contact with water.
SECTION 6: Accidental release measures
Personal precautions, protective equipment and emergency procedures
Evacuate danger area! Consult an expert! Personal protection: chemical protection suit including self-contained breathing apparatus. Ventilation. Do NOT wash away into sewer. Collect leaking and spilled liquid in sealable non-plastic containers as far as possible. Absorb remaining liquid in dry sand or inert absorbent. Then store and dispose of according to local regulations.
Environmental precautions
Evacuate danger area! Consult an expert! Personal protection: chemical protection suit including self-contained breathing apparatus. Ventilation. Do NOT wash away into sewer. Collect leaking and spilled liquid in sealable non-plastic containers as far as possible. Absorb remaining liquid in dry sand or inert absorbent. Then store and dispose of according to local regulations.
Methods and materials for containment and cleaning up
Evacuate danger area! Consult an expert! Ventilation. Collect leaking and spilled liquid in sealable containers as far as possible; do not use plastic containers. Absorb remaining liquid in dry sand or inert absorbent and remove to safe place. Do NOT wash away into sewer. (Extra personal protection: chemical protection suit including self-contained breathing apparatus.)
SECTION 7: Handling and storage
Precautions for safe handling
NO open flames, NO sparks and NO smoking. Closed system, ventilation, explosion-proof electrical equipment and lighting. Do NOT use compressed air for filling, discharging, or handling. Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Fireproof. Separated from food and feedstuffs and incompatible materials. See Chemical Dangers. Cool. Dry. Well closed. Ventilation along the floor.Fireproof. Separated from food and feedstuffs and incompatible materials ... Cool. Dry. Well closed. Ventilation along the floor.
SECTION 8: Exposure controls/personal protection
Control parameters
| Component | Trichlorosilane | |||
|---|---|---|---|---|
| CAS No. | 10025-78-2 | |||
| Limit value - Eight hours | Limit value - Short term | |||
| ppm | mg/m3 | ppm | mg/m3 | |
| Latvia | ? | 1 | ? | ? |
| Remarks | ||||
no data available
Appropriate engineering controls
Ensure adequate ventilation. Handle in accordance with good industrial hygiene and safety practice. Set up emergency exits and the risk-elimination area.
Individual protection measures, such as personal protective equipment (PPE)
Wear face shield or eye protection in combination with breathing protection.
Protective gloves. Protective clothing.
Use ventilation, local exhaust or breathing protection.
no data available
SECTION 9: Physical and chemical properties and safety characteristics
-
Physical state：
TRICHLOROSILANE is a colorless fuming liquid with a pungent odor. Flash point 7°F. Vapor and liquid cause burns. More dense than water. Vapors are heavier than air.
-
Colour：
Colorless liquid
-
Odour：
ACRID ODOR
-
Melting point/freezing point：
224°C(dec.)(lit.)
-
Boiling point or initial boiling point and boiling range：
32-34°C(lit.)
-
Flammability：
Extremely flammable. Gives off irritating or toxic fumes (or gases) in a fire.
-
Lower and upper explosion limit/flammability limit：
Lower flammable limit: 1.2% by volume; Upper flammable limit: 90.5% by volume
-
Flash point：
-27°C
-
Auto-ignition temperature：
220° F (USCG, 1999)
-
Decomposition temperature：
no data available
-
pH：
no data available
-
Kinematic viscosity：
0.397 centipoise at 0 deg C; 0.332 centipoise at 20 deg C; 0.316 centipoise at 25 deg C
-
Solubility：
Sol in benzene, carbon disulfide, chloroform, carbon tetrachloride
-
Partition coefficient n-octanol/water：
no data available
-
Vapour pressure：
9.75 psi ( 20 °C)
-
Density and/or relative density：
1.342g/mLat 25°C(lit.)
-
Relative vapour density：
1 (vs air)
-
Particle characteristics：
no data available
SECTION 10: Stability and reactivity
Reactivity
Decomposes on heating. This produces toxic and corrosive fumes including hydrogen chloride. Reacts violently with water, strong oxidants, strong acids and bases. This produces hydrogen chloride (see ICSC 0163). Attacks many metals in the presence of water.
Chemical stability
Volitile, moblie liquid. Fumes in air.
Possibility of hazardous reactions
A very dangerous fire hazard when exposed to heat, flame, or by chemical reaction.The vapour is heavier than air and may travel along the ground; distant ignition possible.TRICHLOROSILANE reacts with alcohols, acetone, light metals with generation of heat and combustible (H2) and corrosive (HCl) gases [Handling Chemicals Safely 1980. p. 924].
Conditions to avoid
no data available
Incompatible materials
Water reactive. Hydrochloric acid is released ... Reacts violently with water and aqueous soln, alcohols, organic acids, peroxides, amines, and oxidizing materials ...
Hazardous decomposition products
When heated to decomposition it emits toxic fumes of /hydrogen chloride/.
SECTION 11: Toxicological information
Acute toxicity
- Oral: LD50 Rat oral 1.03 g/kg
- Inhalation: LC50 Rat inhalation 2767 ppm/1 hr
- Dermal: no data available
Skin corrosion/irritation
no data available
Serious eye damage/irritation
no data available
Respiratory or skin sensitization
no data available
Germ cell mutagenicity
no data available
Carcinogenicity
no data available
Reproductive toxicity
no data available
STOT-single exposure
The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. Inhalation of the vapour may cause lung oedema. Inhalation may cause asthma-like reactions. Exposure could cause death. Medical observation is indicated. See Notes.
STOT-repeated exposure
no data available
Aspiration hazard
No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20°C.
SECTION 12: Ecological information
Toxicity
- Toxicity to fish: no data available
- Toxicity to daphnia and other aquatic invertebrates: no data available
- Toxicity to algae: no data available
- Toxicity to microorganisms: no data available
Persistence and degradability
no data available
Bioaccumulative potential
Trichlorosilane has been reported to hydrolyze immediately upon contact with water(1) and therefore bioconcentration of trichlorosilane is not expected(SRC).
Mobility in soil
All silicon chlorides are immediately and completely hydrolyzed by water(1). Trichlorosilane has been reported to hydrolyze in water releasing HCl(2); therefore, adsorption to soil is not expected to be an important fate process(SRC).
Other adverse effects
no data available
SECTION 13: Disposal considerations
Disposal methods
The material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems.
Containers can be triply rinsed (or equivalent) and offered for recycling or reconditioning. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.
SECTION 14: Transport information
UN Number
ADR/RID: UN1295 (For reference only, please check.)
IMDG: UN1295 (For reference only, please check.)
IATA: UN1295 (For reference only, please check.)
UN Proper Shipping Name
ADR/RID: TRICHLOROSILANE (For reference only, please check.)
IMDG: TRICHLOROSILANE (For reference only, please check.)
IATA: TRICHLOROSILANE (For reference only, please check.)
Transport hazard class(es)
ADR/RID: 4.3 (For reference only, please check.)
IMDG: 4.3 (For reference only, please check.)
IATA: 4.3 (For reference only, please check.)
Packing group, if applicable
ADR/RID: I (For reference only, please check.)
IMDG: I (For reference only, please check.)
IATA: I (For reference only, please check.)
Environmental hazards
ADR/RID: No
IMDG: No
IATA: No
Special precautions for user
no data available
Transport in bulk according to IMO instruments
no data available
SECTION 15: Regulatory information
Safety, health and environmental regulations specific for the product in question
SECTION 16: Other information
Abbreviations and acronyms
- CAS: Chemical Abstracts Service
- ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
- RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
- IMDG: International Maritime Dangerous Goods
- IATA: International Air Transportation Association
- TWA: Time Weighted Average
- STEL: Short term exposure limit
- LC50: Lethal Concentration 50%
- LD50: Lethal Dose 50%
- EC50: Effective Concentration 50%
References
- IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
- HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
- IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
- eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
- CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
- ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
- ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
- Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
- ECHA - European Chemicals Agency, website: https://echa.europa.eu/
Other Information
Reacts violently with fire extinguishing agents such as water.The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort.Rest and medical observation are therefore essential.Immediate administration of an appropriate inhalation therapy by a doctor or a person authorized by him/her, should be considered.Toxicological properties are inferred from those of Methyldichlorosilane (ICSC 0297).