ICSC 1587 - METHYLCHLOROSILANE

METHYLCHLOROSILANE	ICSC: 1587 (April 2005)
Chloro(methyl) silane

CAS #: 993-00-0

UN #: 2534

EC Number: 213-600-4

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Extremely flammable.	NO open flames, NO sparks and NO smoking.	Use alcohol-resistant foam, dry powder, carbon dioxide. NO water.

AVOID ALL CONTACT!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Burning sensation. Cough. Laboured breathing. Shortness of breath. Sore throat. Symptoms may be delayed. See Notes.	Use local exhaust or breathing protection.	Fresh air, rest. Half-upright position. Refer for medical attention.
Skin	Redness. Pain. Skin burns.	Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse skin with plenty of water or shower.
Eyes	Pain. Redness. Severe deep burns.	Wear safety goggles or eye protection in combination with breathing protection. Wear face shield.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion	Abdominal pain. Burning sensation. Shock or collapse.	Do not eat, drink, or smoke during work.	Rinse mouth. Do NOT induce vomiting. Refer for medical attention .

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Remove all ignition sources. Evacuate danger area! Consult an expert! Personal protection: complete protective clothing including self-contained breathing apparatus. Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Do NOT wash away into sewer.	According to UN GHS Criteria Transportation UN Classification UN Hazard Class: 2.3; UN Subsidiary Risks: 2.1 and 8
STORAGE
Fireproof. Ventilation along the floor. Cool. Dry. Store in an area without drain or sewer access.
PACKAGING

METHYLCHLOROSILANE

ICSC: 1587

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance COLOURLESS LIQUID. Physical dangers No data. Chemical dangers Decomposes on contact with hot surfaces or flames. This produces toxic and corrosive fumes including hydrogen chloride and phosgene. Decomposes on contact with bases. This produces flammable/explosive gas (hydrogen - see ICSC 0001). Reacts violently with oxidants. Reacts violently with water. This produces hydrogen chloride (see ICSC 0163). Attacks many metals in the presence of water.	Formula: CH₅ClSi Molecular mass: 80.6 Solubility in water: reaction Vapour pressure, kPa at 20°C: 18.3 Flash point: -9°C

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS LIQUID.

Physical dangers
No data.

Chemical dangers
Decomposes on contact with hot surfaces or flames. This produces toxic and corrosive fumes including hydrogen chloride and phosgene. Decomposes on contact with bases. This produces flammable/explosive gas (hydrogen - see ICSC 0001). Reacts violently with oxidants. Reacts violently with water. This produces hydrogen chloride (see ICSC 0163). Attacks many metals in the presence of water.

Formula: CH₅ClSi
Molecular mass: 80.6
Solubility in water: reaction
Vapour pressure, kPa at 20°C: 18.3
Flash point: -9°C

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation. Effects of short-term exposure The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. Inhalation may cause lung oedema. The effects may be delayed. Medical observation is indicated. See Notes.	Inhalation risk A harmful contamination of the air will be reached very quickly on evaporation of this substance at 20°C. Effects of long-term or repeated exposure Repeated or prolonged inhalation may cause effects on the lungs. The substance may have effects on the lungs. This may result in chronic bronchitis. See Notes.

EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation.

Effects of short-term exposure
The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. Inhalation may cause lung oedema. The effects may be delayed. Medical observation is indicated. See Notes.

Inhalation risk
A harmful contamination of the air will be reached very quickly on evaporation of this substance at 20°C.

Effects of long-term or repeated exposure
Repeated or prolonged inhalation may cause effects on the lungs. The substance may have effects on the lungs. This may result in chronic bronchitis. See Notes.

OCCUPATIONAL EXPOSURE LIMITS

ENVIRONMENT

NOTES
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 by an authorized person, should be considered. Toxicology of this substance is based on Hydrogen chloride See ICSC0163.

ADDITIONAL INFORMATION

EC Classification

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    See Also:
       Toxicological Abbreviations