- Silicon chloride hydride
Colorless gas with a characteristic, irritating odor.
Registry Numbers and Inventories.
Japan ENCS (MITI)
Melting point, °C
Boiling point, °C
Vapor pressure, mmHg
549 (0 C)
Vapor density (air=1)
1.42 g/cm3 (-122 C)
Solubility in water
Heat of vaporization
Hazards and Protection.
Keep separated from incompatible substances. Avoid heat, flames, sparks and other sources of ignition.
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Wear appropriate chemical protective clothing.
Wear positive pressure self-contained breathing apparatus.
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Attempt to stop leak if without undue personnel hazard. Use water spray to knock-down vapors.
May polymerize violently or explosively.
Reacts with water or moist air to form HCl. Attacks many metals in presence of water.
The substance may spontaneously ignite on contact with air. Decomposes on heating or on burning producing toxic and corrosive fumes including HCl.
Upper exp. limit, %
Lower exp. limit, %
Do not extinguish fire unless flow can be stopped. Do not apply water to point of leak in tank car or container. Use water in flooding quantities as fog. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. Use alcohol foam, dry chemical or carbon dioxide.
Flammable; may be ignited by heat, sparks or flames. May form explosive mixtures with air.
Flammable; may be ignited by heat, sparks or flames. May form explosive mixtures with air. May polymerize explosively when heated or involved in a fire. Vapors from liquefied gas are initially heavier than air and spread along ground. Vapors may travel to source of ignition and flash back. Some of these materials may react violently with water. Containers may explode when heated. Ruptured cylinders may rocket. Runoff may create fire or explosion hazard.
Fire will produce irritating, corrosive and/or toxic gases.
The toxological properties of this substance have not been fully investigated.
Csore throat, cough, burning sensation, shortness of breath, labored breathing.. Corrosive to the respiratory tract. May cause lung edema. Exposure to high levels may result in death. Symptoms may be delayed.
Redness, pain, burns, blisters. Exposure to liquid can cause serious frostbite.
Pain, redness, severe deep burns, loss of vision. Tear drawing.
Seek medical assistance.
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult.
Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes. In case of contact with liquefied gas, thaw frosted parts with lukewarm water.
Immediately flush with running water for at least 20 minutes.
Std. Transport #