Dichlorodimethylsilane

Avocado Research Chemicals Ltd

Revision date : 2026-07-23

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GHS02 GHS06 GHS05
Health risk rating 4
Safety risk rating 3
Environmental risk rating 1

Note: Ingredients listed on restricted chemical lists

EC/CAS

75-78-5

Name of the chemical

Dichloro(dimethyl)silane

Concentration

>95

Listed in

General Information

Version

ALFAAL12133

Revision date

2026-07-23

Product name

Dichlorodimethylsilane

Product Synonyms

Dimethyldichlorosilane; DMDCS

CAS No.

75-78-5

supplier name

Avocado Research Chemicals Ltd

Emergency telephone

001-201-796-7100, +32 14 57 52 99, 001-800-424-9300, 001-703-527-3887

Icons in SDS

GHS02 GHS05 GHS06 M004 M009 M010 M011 M017

Company Information

company name

Avocado Research Chemicals Ltd

e-mail address of the competent person responsible for the Safety Data Sheet

begel.sdsdesk@thermofisher.com

GHS Information

Signal word

Danger

Hazard Codes

Hazard statements (CLP)

H225, H302, H314, H331, H335

Hazard statements

Code

Statements

H225

Highly Flammable liquid and vapour

Section 2

SECTION 2: Hazards identification

Physical State

Appearance/Odor

Liquid Clear pungent Emergency Overview Highly flammable liquid and vapor. May cause respiratory irritation. Harmful if swallowed. Causes severe skin burns and eye damage. Toxic if inhaled. Moisture sensitive. Lachrymator (substance which increases the flow of tears). Classification of the substance or mixture Flammable liquids Category 2 Acute Oral Toxicity Category 4 Acute Inhalation Toxicity - Vapors Category 3 Skin Corrosion/Irritation Category 1 A Serious Eye Damage/Eye Irritation Category 1 Specific target organ toxicity - (single exposure) Category 3

Signal word

Danger

Hazard statements

H225 - Highly flammable liquid and vapor H335 - May cause respiratory irritation H302 - Harmful if swallowed H314 - Causes severe skin burns and eye damage H331 - Toxic if inhaled

Prevention

P210 - Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking 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 P264 - Wash face, hands and any exposed skin thoroughly after handling P270 - Do not eat, drink or smoke when using this product P271 - Use only outdoors or in a well-ventilated area P280 - Wear protective gloves/protective clothing/eye protection/face protection

Response

P303 + P361 + P353 - IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower P304 + P340 - IF INHALED: Remove person to fresh air and keep comfortable for breathing P305 + P351 + P338 - IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing P310 - Immediately call a POISON CENTER or doctor P330 - Rinse mouth P331 - Do NOT induce vomiting P370 + P378 - In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish P362 + P364 - Take off contaminated clothing and wash it before reuse

Storage

P403 + P233 - Store in a well-ventilated place. Keep container tightly closed P405 - Store locked up

Disposal

P501 - Dispose of contents/ container to an approved waste disposal plant

Other physicochemical hazards

Vapors may cause flash fire or explosion. Highly flammable. Water reactive.

Health hazards

May cause respiratory irritation. Harmful if swallowed. Corrosive. Causes skin and eye burns. Toxic if inhaled. Lachrymator (substance which increases the flow of tears).

Environmental hazards

Contains no substances known to be hazardous to the environment or not degradable in waste water treatment plants. Will likely be mobile in the environment due to its volatility. The product contains volatile organic compounds (VOC) which will evaporate easily from all surfaces.

2.3 Other hazards

Lachrymator (substance which increases the flow of tears) Toxic to terrestrial vertebrates. This product does not contain any known or suspected endocrine disruptors.

2.1 Classification of the substance or mixture

Flammable liquids. Category 2 Acute Oral Toxicity Category 4 Acute Inhalation Toxicity - Vapors Category 3 Skin Corrosion/Irritation Category 1 A Serious Eye Damage/Eye Irritation Category 1 Specific target organ toxicity - (single exposure)

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