| Identification | Back Directory | [Name]
Chloromethyl silane | [CAS]
993-00-0 | [Synonyms]
Un2534
Einecs 213-600-4
Methylchlorosilane
Chloromethyl silane
Silane, chloromethyl-
Methylchlorosilane,mixed monomer
Methylchlorosilane Mixed Monomers
Silane, chloromethyl-(6CI,7CI,8CI,9CI)
Chloromethyl silane ISO 9001：2015 REACH
Methylchlorosilane [un2534] [poison gas]
Methyl chlorosilane: (Chloromethylsilane)
Methylchlorosilane Monomer Low Boiling Point
Methylchlorosilane Monomer High Boiling Point | [EINECS(EC#)]
213-600-4 | [Molecular Formula]
CH5ClSi | [MOL File]
993-00-0.mol | [Molecular Weight]
80.5889 |
| Chemical Properties | Back Directory | [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. | [Melting point ]
-134.1°C | [Boiling point ]
8.7°C (estimate) | [density ]
0.8840 | [form ]
liquid | [EPA Substance Registry System]
Methylchlorosilane (993-00-0) |
| Hazard Information | Back Directory | [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. | [Health Hazard]
TOXIC; may be fatal if inhaled or absorbed through skin. Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control may cause pollution. | [Fire Hazard]
Flammable; may be ignited by heat, sparks or flames. May form explosive mixtures with air. 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. Cylinders exposed to fire may vent and release toxic and flammable gas through pressure relief devices. Containers may explode when heated. Ruptured cylinders may rocket. Runoff may create fire or explosion hazard. | [Hazard]
Toxic by ingestion and inhalation, strong
irritant to skin and eyes. | [Description]
MethyI chlorosilane iS a colorless liquid. Flashpoint=-9"C. NJDHSS (New Jersey Department of Health and Senior Hazard Rating: Health 3 Flammability 4, Reactivity 2W. Reacts with water.Potential Exposure: MethyI chlorosilane is rarely used as a raw material, but it is released during the manufacture of Silicones or siloxanes. | [Flammability and Explosibility]
Extremelyflammable(100%) | [First aid]
If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least30 min, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts theskin, remove contaminated clothing and wash immediatelywith soap and water. Seek medical attention immediately. Ifthis chemical has been inhaled, remove from exposure,begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR ifheart action has stopped. Transfer promptly to a medicalfacility. When this chemical has been swallowed, getmedical attention. If victim is conscious, administer wateror milk. Do not induce vomiting. Medical observation isrecommended for 24- - 48 h after breathing overexposure, aspulmonary edema may be delayed. As first aid for pulmo-nary edema, a doctor or authorized paramedic may consideradministering a corticosteroid spray. | [storage]
Color Code—Red Stripe: Flammability Hazard:Store separately from all other flammable materials. Priorto working with this chemical you should be trained on itsproper handling and storage. Methyl chlorosilane must bestored to avoid contact with water, steam, and moisturebecause toxic and corrosive chloride gases, including hydrogen chloride, can be produced. Sources of ignition, such assmoking and open flames, are prohibited where methylchlorosilane is handled, used, or stored. | [Shipping]
Methylchlorosilane requires a shipping label of“POISON GAS, FLAMMABLE GAS, CORROSIVE.” Itfalls in Hazard Class 2.3. It is a violation of transportationregulations to refill compressed gas cylinders without theexpress written permission of the owner | [Incompatibilities]
May form explosive gases with air.Contact with water, steam, or moisture, forms toxic and corrosive hydrogen chloride gas. Not compatible with strongbases, strong acids, oxidizers. Attacks metals, plastics, rubbers, and coatings. |
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