Dichlorosilane construction materials

Store and use dichlorosilane only in adequately ventilated areas. It should be used only in a closed system constructed with compatible materials and designed to withstand the pressures involved. Keep away from heat and all ignition sources such as flames and sparks since dichlorosilane will form flammable mixtures with air and other oxidizing agents. All lines, connections, equipment, and so forth, must be thoroughly checked for leaks and grounded prior to use. Use only spark-proof tools and explosion-proof equipment. 

Dichlorosilane should not be discharged directly into surface waters or sewer systems since an acidic waste product is formed. The disposal can be accomplished by controlled introduction of the product into water. The exothermic reactions of dichlorosilane with water (hydrolysis) result in the formation of hydrochloric acid and an insoluble silicon containing solid or fluid. In order to prevent air pollution, the quantity of water must be sufficient to dissolve all of the hydrogen chloride that will be formed. The ratio of water to dichlorosilane should be at least 10 to 1. The corrosive and exothermic nature of the reaction should be considered in selecting materials of construction for the equipment used in this procedure. 

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