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Dimethylchlorosilane appears as a colorless fuming liquid with a pungent, burning odor. Extremely corrosive to skin and respiratory tissues, both as a liquid and vapor. Vapors are heavier than air.

Liquid

Colorless fuming liquid with a pungent, burning odor; Bp = 35 deg C; [CAMEO]

This chemical does not meet GHS hazard criteria for 0.2% (4 of 2413) of reports.

Danger

H224 (98.8%): Extremely flammable liquid and vapor [Danger Flammable liquids]

P210, P231+P232, P233, P240, P241, P242, P243, P260, P261, P264, P271, P280, P301+P330+P331, P302+P361+P354, P303+P361+P353, P304+P340, P305+P354+P338, P316, P321, P363, P370+P378, P402+P404, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 2413 reports by companies from 13 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Chemical: Silane, chlorodimethyl-

Silane, chlorodimethyl- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Silane, chlorodimethyl- 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: 12-10-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/14141

Chlorodimethylsilane: Does not have an individual approval but may be used under an appropriate group standard

Reacts violently with water evolving heat and hydrogen chloride gas; Liquid and vapor highly corrosive to skin and respiratory tissue; [CAMEO] Reacts with water producing flammable gases that may ignite spontaneously; Causes burns; Inhalation may cause corrosive injuries to upper respiratory tract and lungs; [Sigma-Aldrich MSDS]

Chlorosilanes, such as DIMETHYLCHLOROSILANE, 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.

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].

1.8 [ppm]

22 [ppm]

100 [ppm]

AEGL 1: Notable discomfort, irritation, or certain asymptomatic non-sensory effects. However, the effects are not disabling and are transient and reversible upon cessation of exposure (Unit: ppm)

1.8

1.8

1.8

1.8

1.8

All Other Basic Inorganic Chemical Manufacturing

Silane, chlorodimethyl-: ACTIVE