Ethylphenyldichlorosilane 1125-27-5

(Dichloroethylsilyl)benzene

Benzene,(dichloroethylsilyl)-;Silane,dichloroethylphenyl-;(Dichloroethylsilyl)benzene;Dichloroethylphenylsilane

1125-27-5

C8H10Cl2Si

InChIKey=QFHGBZXWBRWAQV-UHFFFAOYSA-N

205.16

205.16

214-407-8

Z8JOW05OJM

2435

Colorless liquid

Bulk Drug Intermediates

0

5.47

Ethylphenyldichlorosilane is a colorless liquid with a pungent odor. It is decomposed by water to hydrochloric acid with evolution of heat. It is corrosive to metals and tissue.

1.184 g/cm³

225-226 °C

92°C

1.5321

Reacts vigorously with water to form hydrogen chloride(hydrochloric acid)

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/

Inhalation-rat LC 10 mg/m3/2 hours; inhalation-mouse LC 10 mg/m3/2 hours

Flammable; emits toxic hydrogen chloride gas in water; emits toxic hydrogen chloride and phenol gas in fire

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

SHARP ODOR LIKE HYDROCHLORIC ACID

Fumes strongly in moist air|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/

Reacts vigorously with water to form hydrogen chloride(hydrochloric acid). 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 33 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 86 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.

Chlorosilanes

Strong Reducing Agent

Chlorosilanes, such as ETHYLPHENYLDICHLOROSILANE, 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. Special Hazards of Combustion Products: Toxic hydrogen chloride and phosgene fumes may be formed.

103 BTU/LB = 57 CAL/G = 2.4X10+5 JOULES/KG