Dichlorosilane

Toxic Gases & Vapors -> Chlorosilanes

Flammable agents - 4th degree

8 °C

8.3 °C @760 [mm Hg]

-122 °C

-122 °C

Dichlorosilane is a flammable and poisonous gas, with a strong repulsive odor. It is easily ignited in air, reacts with oxidizing agents, is very toxic by inhalation, and is a strong irritant to skin, eyes and mucous membranes. Under prolonged exposure to fire or intense heat the container may rupture violently or rocket.

Gas Vapor; CBI; Liquid

A flammable and poisonous gas, with a strong repulsive odor; [CAMEO] Vapor density = 3.48 (heavier than air); [Burke, p. 101]

COLOURLESS GAS WITH CHARACTERISTIC ODOUR.

Danger

H220 (100%): Extremely flammable gas [Danger Flammable gases]

P203, P210, P222, P231+P232, P260, P261, P264, P264+P265, P271, P280, P284, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P320, P321, P363, P370+P378, P377, P381, P402+P404, P403, P403+P233, P405, P410+P403, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 161 reports by companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Danger

H220: Extremely flammable gas [Danger Flammable gases]

Chemical: Silane, dichloro-

Silane, dichloro- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Silane, dichloro- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

Status: Active Update: 28-03-2023 https://echa.europa.eu/registration-dossier/-/registered-dossier/26367

The New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.)

Excerpt from ERG Guide 119 [Gases - Toxic - Flammable]:

· Flammable; may be ignited by heat, sparks or flames.

Extremely flammable. Gives off irritating or toxic fumes (or gases) in a fire. Gas/air mixtures are explosive.

Excerpt from ERG Guide 119 [Gases - Toxic - Flammable]:

· TOXIC; may be fatal if inhaled or absorbed through skin. Some may cause severe skin burns and eye damage.

Extremely flammable; Reacts with water to release HCl; Corrosive to skin and can produce pneumonitis after inhalation; [CSH, p. 168] Corrosive to skin; [Quick CPC] A corrosive substance that can cause injury to the skin, eyes, and respiratory tract; Tear drawing; Inhalation of high concentrations may cause pulmonary edema; Evaporating liquid can cause frostbite; [ICSC]

Chlorosilanes, such as DICHLOROSILANE, are compounds in which silicon is bonded to from one to four chlorine atoms with other bonds to hydrogen and/or alkyl groups. Chlorosilanes react with water, moist air, or steam to produce heat and toxic, corrosive fumes of hydrogen chloride. They may also produce flammable gaseous H2. They can serve as chlorination agents. Chlorosilanes react vigorously with both organic and inorganic acids and with bases to generate toxic or flammable gases.

The substance may ignite spontaneously on contact with air. Decomposes on heating and on burning. This produces toxic fumes including hydrogen chloride. Reacts with water and moist air. This produces hydrogen chloride. Attacks many metals in the presence of water.

Excerpt from ERG Guide 119 [Gases - Toxic - Flammable]:

Shut off supply; if not possible and no risk to surroundings, let the fire burn itself out. In other cases extinguish with foam, powder. Combat fire from a sheltered position.

Fresh air, rest. Half-upright position. Refer for medical attention.

Rinse skin with plenty of water or shower. Refer for medical attention .

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

· CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.

· ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area.

Excerpt from ERG Guide 119 [Gases - Toxic - Flammable]:

General First Aid:

· Wear positive pressure self-contained breathing apparatus (SCBA).

TIH (Toxic Inhalation Hazard) - Term used to describe gases and volatile liquids that are toxic when inhaled. Some are TIH materials themselves, e.g., chlorine, and some release TIH gases when spilled in water, e.g., chlorosilanes. [ERG 2016].

Excerpt from ERG Guide 119 [Gases - Toxic - Flammable]:

Immediate precautionary measure

Small spill:

Small spill:

Sore throat. Cough. Burning sensation. Shortness of breath. Laboured breathing. Symptoms may be delayed.

Pain. Redness. Blisters. Skin burns. Frostbite.

Pain. Redness. Severe deep burns. Loss of vision.

Dichlorosilane

1

10000

10.47

45

Flammable chemical that can be released at a facility.

All Other Basic Inorganic Chemical Manufacturing

Silane, dichloro-: ACTIVE