Dichlorodiphenylsilane

Dichlorodiphenylsilane

Benzene,1,1′-(dichlorosilylene)bis-;Silane,dichlorodiphenyl-;1,1′-(Dichlorosilylene)bis[benzene];Dichlorodiphenylsilane;Diphenyldichlorosilane;Diphenylsilicon dichloride;Diphenylsilyl dichloride;TSL 8062;NSC 77110;155684-38-1

80-10-4

C12H10Cl2Si

InChIKey=OSXYHAQZDCICNX-UHFFFAOYSA-N

253.197

253.20

201-251-0

08811ZE689

77110

1769

DTXSID2026494

Colorless liquid

29310095

Hydrocarbons and Derivatives

0

6.69

Diphenyldichlorosilane is a colorless liquid with a pungent odor. It will burn though it may require some effort to ignite. It is decomposed by water to hydrochloric acid with evolution of heat. It is corrosive to metals and tissue.

1.204 g/cm³ @ Temp: 25 °C

-22 °C

305 °C

288 deg F (142 deg C) CC

1.583

Decomposes in water;soluble in ethanol, ethyl ether, acetone, carbon tetrachloride and benzene

All containers, pipes, apparatus, installations, and structures used for manufacture, storage, transport, or use of these substances must be of material resistant to corrosive substances or be protected by suitable coatings All containers or receptacles should be clearly labelled to indicate their contents and should bear the danger symbol for corrosives. /Corrosive substances/

2 mm Hg ( 125 °C)

8.45 (Air = 1)

Lower explosive limit: 3.4%; Upper explosive limit: > or = 9.5%

SHARP, HYDROCHLORIC ACID-LIKE; PUNGENT

Can react vigorously with oxidizing materials|Readily hydrolyzed by moisture with liberation of hydrogen chloride|The reaction of organosilanes with halogens and halogen compounds usually proceeds in good yield through cleavage of the Si--H bond and formation of the silicon-halogen bond. Reaction with fluorine, however, does not proceed satisfactorily because of cleavage of not only the Si--H but also C--Si and C--H bonds. Direct halogenation with chlorination, bromine, and iodine proceeds smoothly, however. /Organosilanes/

Based on the properties of similar materials, there is the possibility that the reaction of this compound 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. Diphenyldichlorosilane reacts vigorously with water to generate gaseous HCl. Based on a scenario where the chemical is spilled into an excess of water (at least 5 fold excess of water), half of the maximum theoretical yield of Hydrogen Chloride gas will be created in 5.3 minutes. After mixing particular chemicals into water, there may be a delay of 1-10 minutes before gas generation may be observed. For this chemical, a 60 second induction time was observed. Experimental details are in the following: "Development of the Table of Initial Isolation and Protective Distances for the 2008 Emergency Response Guidebook", ANL/DIS-09-2, D.F. Brown, H.M. Hartmann, W.A. Freeman, and W.D. Haney, Argonne National Laboratory, Argonne, Illinois, June 2009.

Hydrocarbons, Aromatic

Water-Reactive

Chlorosilanes, such as DIPHENYLDICHLOROSILANE, 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.

-11,000 btu/lb = -6,200 cal/g = -260x10+5 J/kg (est)

Corrosive

106 btu/lb = 59 cal/g = 2.5x10+5 J/kg