Chlorotrimethylsilane CAS: 75-77-4
TDS 2 Inquiries
75-77-4
Industrial Grade
99.9%
Qingdao
Orient
25L, 200L, 1000L, customized
2028-12-29
pharmaceutical intermediates,peptides,electronic chemicals
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Product Description
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Seller Information
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Inquiry History
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DescriptionECHEMI Editorial ReferenceA clear, colorless, caustic and highly flammable liquid with a pungent odour. Readily hydrolyzed with liberation of hydrogen chloride; soluble in benzene, ether and perchloroethylene. Trimethylchlorosilane is a colorless, fuming liquid. Irritating odor.CertificatesBasic Info
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Product Name:
Chlorotrimethylsilane
Other Name:Silane,chlorotrimethyl-;Chlorotrimethylsilane;Trimethylchlorosilane;Trimethylsilyl chloride;Trimethylsilicon chloride;Monochlorotrimethylsilicon;Trimethylsilane chloride;TSL 8031;Monochlorotrimethylsilane;KA 31;KA 31 (silane);NSC 15750;TMCS;LS 260;TMSCl;127290-36-2;36642-33-8
CAS No.:75-77-4
Molecular Formula:C3H9ClSi
InChIKeys:InChIKey=IJOOHPMOJXWVHK-UHFFFAOYSA-N
Molecular Weight:108.64200
Exact Mass:108.64
EC Number:200-900-5
UNII:62UO4690X6
ICSC Number:0966
NSC Number:15750
UN Number:1298
DSSTox ID:DTXSID2024822
Color/Form:Colorless liquid
HScode:29310095
Categories:
Characteristics-
PSA:
0
XLogP3:2.06010
Appearance:Trimethylchlorosilane appears as a colorless fuming liquid with a pungent odor. Boiling point 135° F, Flash point -18°F. Density 0.854 g / cm3. The vapor and liquid may cause burns. Vapors are heavier than air.
Density:0.854 g/cm3 @ Temp: 25 °C
Melting Point:-57.7 °C
Boiling Point:57 °C
Flash Point:-18ºC
Refractive Index:1.387-1.389
Water Solubility:Solubility in water: reaction
Storage Conditions:Store at RT.
Vapor Pressure:100 mm Hg ( 25 °C)
Vapor Density:3.7 (vs air)
Toxicity:LD50 orally in Rabbit: 4868 mg/kg LD50 dermal Rabbit 1530 mg/kg
Flammability characteristics:LOWER 1.8%
Explosive limit:vol% in air: 1.8
Odor:SHARP, HYDROCHLORIC ACID-LIKE ODOR; ACRID.
Experimental Properties:Ratio of specific heats of vapor (gas): 1.0683. (est)|Readily hydrolyzed with liberation of hydrochloric acid|Organo-functional silanes are noted for their ability to bond organic polymer systems to inorganic substrates /Silane cmpd/|The reaction of organosilanes with halogens and halogen cmpd usually proceeds in good yield through cleavage of the Si--H bond and formation of the silicon-halogen bond. Reaction with fluorine, however, does not proceed satisfactorily because of cleavage of not only the Si--H but also C--Si and C--H bonds. Direct halogenation with chlorination, bromine, and iodine proceeds smoothly, however. /Organosilanes/|Hydroxyl radical reaction rate constant = 4.49X10-13 cu cm/molec sec at 25 °C (est)
Air and Water Reactions:Highly flammable. Fumes in air. Reacts vigorously and exothermically with water. Products of the reaction include hydrogen chloride. The heat may be sufficient to ignite nearby combustible materials. Trimethylchlorosilane reacts vigorously with water to generate gaseous HCl. Based on a scenario where the chemical is spilled into an excess of water (at least 5 fold excess of water), half of the maximum theoretical yield of Hydrogen Chloride gas will be created in 1.3 minutes. Experimental details are in the following: "Development of the Table of Initial Isolation and Protective Distances for the 2008 Emergency Response Guidebook", ANL/DIS-09-2, D.F. Brown, H.M. Hartmann, W.A. Freeman, and W.D. Haney, Argonne National Laboratory, Argonne, Illinois, June 2009.
Reactive Group:Chlorosilanes
Reactivity Alerts:Highly Flammable
Reactivity Profile:TRIMETHYLCHLOROSILANE reacts vigorously and exothermically with water to produce hydrogen chloride.
Autoignition Temperature:743 °F (USCG, 1999)|743 °F (395 °C)|395 °C
Heat of Combustion:-10,300 BTU/LB (EST)
Flammable Limits:Lower flammable limit: 1.8% by volume; Upper flammable limit: 6.0% by volume|LOWER 1.8%
Physical Dangers:The vapour is heavier than air and may travel along the ground; distant ignition possible.
Heat of Vaporization:126 BTU/LB
Hazard IdentificationClassification of the substance or mixture
Flammable liquids, Category 2
Acute toxicity - Category 3, Oral
Acute toxicity - Category 4, Dermal
Skin corrosion, Sub-category 1A
Acute toxicity - Category 3, Inhalation
GHS label elements, including precautionary statements
Pictogram(s) 
Signal word Danger
Hazard statement(s) H225 Highly flammable liquid and vapour
H301 Toxic if swallowed
H312 Harmful in contact with skin
H314 Causes severe skin burns and eye damage
H331 Toxic if inhaled
Precautionary statement(s) Prevention 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/...
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.
Response 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.
P301+P316 IF SWALLOWED: Get emergency medical help immediately.
P321 Specific treatment (see ... on this label).
P330 Rinse mouth.
P302+P352 IF ON SKIN: Wash with plenty of water/...
P317 Get medical help.
P362+P364 Take off contaminated clothing and wash it before reuse.
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.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Storage P403+P235 Store in a well-ventilated place. Keep cool.
P405 Store locked up.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
Disposal 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
Handling and StoragePrecautions for safe handling
NO open flames, NO sparks and NO smoking. NO contact with hot surfaces. 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 other compounds. Cool. Dry. Well closed.Storage temperature; ambient.
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Seller Information
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Business Type:
Trader
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Main Products:
pharmaceutical intermediates,peptides,electronic chemicals
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Location:
Room 102, 1st Floor, East Office Building, No. 45 Pengwan Road, Qianwan Bonded Port Area, Qingdao Zone, China (Shandong) Pilot Free Trade Zone
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Payment Terms:
100% TT in advance
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Average lead Time:
10
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Total Annual Revenue:
$10 million-$25 million
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Total Employees:
51-100
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Year of Establishment:
2024
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Inquiry History2 Inquiries
Country Product Purchase Quantity Date Posted 
South Korea
TMCS Trimethylchlorosilane
1 MT Jan 14, 2026 
Romania
Trimethylchlorosilane
680 KG Sep 30, 2025 Post an enquiry for this product
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