993-00-0 Usage
Definition
One of several intermediates in the formation of silicones or siloxanes,
they react with hydroxyl groups on many types of
surfaces to produce a permanent, thin-surface film
of silicone that imparts water repellency. Examples
are methyltrichlorosilane, dimethyldichlorosilane,
and trimethylchlorosilane.
General Description
Methyl chlorosilane is a colorless gas with a distinctive odor. Chloromethyl silane is insoluble in water. Its vapors are heavier than air. Contact with the material causes severe irritation to skin, eyes, and mucous membranes. Chloromethyl silane is toxic by ingestion and skin absorption. Chloromethyl silane is also a dangerous fire risk. Chloromethyl silane is used to make water repellent materials. Prolonged exposure of container to fire or intense heat may result in their violent rupturing and rocketing.
Air & Water Reactions
Highly flammable. Based on the properties of similar materials, there is the possibility that the reaction of Chloromethyl silane with water may be vigorous or violent. Products of the reaction include hydrogen chloride. The reaction generates heat and this heat may be sufficient to ignite the product. The chlorosilicon hydrides (ClxSiHy) are spontaneously flammable in air [NFPA 1991].
Reactivity Profile
Chlorosilanes, such as Chloromethyl silane, 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.
Hazard
Toxic by ingestion and inhalation, strong
irritant to skin and eyes.
Flammability and Explosibility
Extremelyflammable
Check Digit Verification of cas no
The CAS Registry Mumber 993-00-0 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 9,9 and 3 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 993-00:
(5*9)+(4*9)+(3*3)+(2*0)+(1*0)=90
90 % 10 = 0
So 993-00-0 is a valid CAS Registry Number.
InChI:InChI=1/CH3ClSi/c1-3-2/h1H3
993-00-0Relevant articles and documents
Voronkov,Abramas
, (1978)
PROCESS FOR THE STEPWISE SYNTHESIS OF SILAHYDROCARBONS
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Page/Page column 53; 55, (2021/12/08)
The invention relates to a process for the stepwise synthesis of silahydrocarbons bearing up to four different organyl substituents at the silicon atom, wherein the process includes at least one step a) of producing a bifunctional hydridochlorosilane by a redistribution reaction, selective chlorination of hydridosilanes with an ether/HCI reagent, or by selective chlorination of hydridosilanes with SiCI4, at least one step b) of submitting a bifunctional hydridochloromonosilane to a hydrosilylation reaction, at least one step c) of hydrogenation of a chloromonosilane, and a step d) in which a silahydrocarbon compound is obtained in a hydrosilylation reaction.
PROCESS FOR THE PRODUCTION OF ORGANOHYDRIDOCHLOROSILANES
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Paragraph 31; 32; 35; 39, (2019/04/16)
The invention relates to a process for the manufacture of organomonosilanes bearing both hydrogen and chlorine substituents at the silicon atom by subjecting a silane substrate comprising one or more silanes selected from organomonosilanes, organodisilanes and organocarbodisilanes, with the proviso that at least one of these silanes has at least one chlorine substituent at the silicon atom, to a redistribution reaction in the presence of a phosphane or amine acting as a redistribution catalyst.
INTEGRATED PROCESS FOR THE MANUFACTURE OF METHYLCHLOROHYDRIDOMONOSILANES
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Page/Page column 35; 36; 37, (2019/04/16)
The present invention relates to an integrated process for the manufacture of methylchlorohydridomonosilanes in particular, from products of the Müller-Rochow Direct Process.