Physicochemical properties

Color and odor state: colorless transparent liquid with pungent hydrogen chloride odor

Toxicity: High toxicity

Flammability: Flammable

Density: 1.10g/cm³ (20°C).

Volatility: High volatility

Corrosive: It is highly corrosive

Boiling point: 41°C

Stability: easy to decompose when encountering water, alcohols and alkalis

Melting point: -99°C

Acidity and alkalinity: It is highly acidic when exposed to water

Moisture absorption: extremely strong moisture absorption

Spontaneous ignition point: 450°C

Viscosity: Low viscosity liquid, good fluidity

Deliquescence: reacts when it encounters water, and has no deliquescence

Flash point: -28°C

Degradability: Violent reaction with water or water vapor, decomposition to produce hydrogen chloride and methylsilyldiol

Solubility: Insoluble in water, soluble in organic solvents such as benzene, toluene, ether, etc

Various numbers

CAS: 75-54-7

EINECS：200-878-1

Uses

It is mainly used for the preparation of silicone polymer materials such as methyl silicone oil, methyl silicone rubber, and methyl silicone resin; It is used as a key intermediate for silane coupling agents; It is used to prepare hydrogen-containing silicone oil and modified silicone products; It is also used as a silicon source material for the semiconductor industry

Hazard category

Class 3.1 flammable liquid with low flash point, which is corrosive and toxic at the same time

Fire extinguishing agents

Dry powder, carbon dioxide, dry sand, water, foam, acid-alkali fire extinguishing agent is strictly prohibited to extinguish the fire

Emergency treatment

Skin contact: Immediately remove contaminated clothing, rinse with plenty of running water, and seek medical attention; Eye contact: Immediately lift the eyelids, rinse thoroughly with plenty of running water or saline, and seek medical attention; Inhalation: Quickly leave the scene to a fresh place in the air, keep the airway open, and seek medical attention; Food: Rinse your mouth with water, give milk or egg white, and seek medical attention

Packaging, storage, transportation

Packing: 210kg galvanized iron drum/stainless steel drum; The packaging should be sealed throughout the whole process to prevent contact with air and water from being stored in a cool, dry and well-ventilated warehouse, and the storage temperature should not exceed 20°C, away from fire and heat sources. Keep the container absolutely sealed, strictly moisture-proof and waterproof, and store separately from water, alcohols, oxidants, and edible chemicals. The warehouse adopts explosion-proof lighting and ventilation facilities, and it is forbidden to use mechanical equipment and tools that are prone to sparks; The storage area should be equipped with leakage emergency treatment equipment and suitable containment materials; Transported according to the requirements of dangerous goods