Physicochemical properties

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

Toxicity: High toxicity

Flammability: Flammable

Density: 1.27 g/cm³ (20 °C).

Volatility: High volatility

Corrosive: It is highly corrosive

Boiling point: 66.5°C

Decomposability: Violent reaction with water or water vapor, decomposition to produce hydrogen chloride and methylsilicic acid

Stability: stable at room temperature

Melting point: -90°C

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

Moisture absorption: Extremely strong moisture absorption, reacting immediately when it encounters water

Spontaneous ignition point: 490°C

Viscosity: Low viscosity liquid, good fluidity

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

Flash point: -9°C

Solubility: insoluble in water, soluble in organic solvents such as benzene, ether, carbon tetrachloride, etc

Various numbers

CAS: 75-79-6

EINECS：200-902-6

Uses

It is used to prepare silicone products such as methyl silicone resin, methyl silicone oil, and silicone rubber; used as an intermediate in organic synthesis; For the preparation of silane coupling agents; It is also used as a silicon source reagent in the semiconductor industry

Hazard category

3.2 flash point flammable liquid, which is corrosive and toxic at the same

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 and rinse with plenty of running water; Eye contact: lift the eyelids immediately, rinse thoroughly with plenty of running water or saline for at least 15 minutes, 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

240kg plastic drum/stainless steel drum; The package must be sealed throughout the process and protected by nitrogen; Store in a cool, dry and well-ventilated warehouse, the storage temperature should not exceed 25°C, away from fire and heat sources; Keep the container sealed, strictly moisture-proof and waterproof, and store separately from water, alcohols, alkalis, 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