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Chlorosilanes mixed with
Water and Aqueous Solutions

Hazard Predictions

• Corrosive: Reaction products may be corrosive
• Flammable: Reaction products may be flammable
• Generates gas: Reaction liberates gaseous products and may cause pressurization
• Generates heat: Exothermic reaction at ambient temperatures (releases heat)
• Toxic: Reaction products may be toxic

ALLYLTRICHLOROSILANE is highly flammable. The compound reacts violently with water, steam, moist air, alcohols, acetone, and light metals, generating heat, combustible hydrogen gas, and corrosive HCl gas. (Handling 365bet娱乐 Safely, Dutch Association of Safety Experts, Dutch Chemical Industry Association, Dutch Safety Institute, 1980, p. 924). This chemical releases HCl gas at a rapid rate (Brown, D. F., et al. (2000) Development of the Table of Initial Isolation and Protective Action Distances for the 2000 Emergency Response Guidebook, ANL/DIS-00-1, Argonne National Laboratory, Argonne IL).

Amyltrichlorosilane reacts rapidly with water to generate gaseous HCl (Brown, D. F., et al. (2000) Development of the Table of Initial Isolation and Protective Action Distances for the 2000 Emergency Response Guidebook, ANL/DIS-00-1, Argonne National Laboratory, Argonne IL).

BUTYLTRICHLOROSILANE is flammable. The compound emits fumes of hydrogen chloride on contact with air, and reacts vigorously with water to generate gaseous HCl (Handling 365bet娱乐 Safely, Dutch Association of Safety Experts, Dutch Chemical Industry Association, Dutch Safety Institute, 1980, p. 924). The reaction of this compound with water and release of HCl is rapid (Brown, D. F., et al. (2000) Development of the Table of Initial Isolation and Protective Action Distances for the 2000 Emergency Response Guidebook, ANL/DIS-00-1, Argonne National Laboratory, Argonne IL).

CYCLOHEXENYLTRICHLOROSILANE reacts violently with water, steam, moist air, alcohols, acetone, and light metals, generating heat, combustible hydrogen gas, and corrosive HCl gas. On contact with air it gives off HCl gas (Handling 365bet娱乐 Safely, Dutch Association of Safety Experts, Dutch Chemical Industry Association, Dutch Safety Institute, 1980, p. 924).

CYCLOHEXYLTRICHLOROSILANE reacts violently with water, steam, moist air, alcohols, acetone, and light metals, generating heat, combustible hydrogen gas, and corrosive HCl gas (Handling 365bet娱乐 Safely, Dutch Association of Safety Experts, Dutch Chemical Industry Association, Dutch Safety Institute, 1980, p. 924).

Dichlorophenyltrichlorosilane reacts vigorously with water to generate gaseous HCl. In experiments at Argonne National Laboratory, in which it was mixed with water and stirred at room conditions, about 30 percent of the theoretical yield of HCl evolved as a gas in the first 20 minutes (Brown, D. F., et al. (2005) Development of the Table of Initial Isolation and Protective Action Distances for the 2004 Emergency Response Guidebook, ANL/DIS-05-2, Argonne National Laboratory, Argonne IL).

DICHLOROSILANE is highly flammable. 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. The chlorosilicon hydrides(ClxSiHy) are spontaneously flammable in air, [NFPA 1991].

DIETHYLDICHLOROSILANE reacts with water to generate gaseous HCl and heat. In experiments at Argonne National Laboratory, in which it was mixed with water and stirred at room conditions, about 30 percent of the theoretical yield of HCl evolved as a gas in the first 60 minutes (Brown, D. F., et al. (2005) Development of the Table of Initial Isolation and Protective Action Distances for the 2004 Emergency Response Guidebook, ANL/DIS-05-2, Argonne National Laboratory, Argonne IL).

DIMETHYLDICHLOROSILANE reacts vigorously with water to generate gaseous HCl. In experiments at Argonne National Laboratory, in which it was mixed with water and stirred at room conditions, the entire theoretical yield of HCl evolved as a gas in the first 20 minutes (Brown, D. F., et al. (2005) Development of the Table of Initial Isolation and Protective Action Distances for the 2004 Emergency Response Guidebook, ANL/DIS-05-2, Argonne National Laboratory, Argonne IL).

Diphenyldichlorosilane reacts with water to generate gaseous HCl. In experiments at Argonne National Laboratory, in which it was mixed with water and stirred at room conditions, about 23 percent of the theoretical yield of HCl evolved as a gas in the first 20 minutes (Brown, D. F., et al. (2005) Development of the Table of Initial Isolation and Protective Action Distances for the 2004 Emergency Response Guidebook, ANL/DIS-05-2, Argonne National Laboratory, Argonne IL).

DODECYLTRICHLOROSILANE reacts vigorously with water, steam, moist air, alcohols, acetone, and light metals, generating heat, combustible hydrogen gas, and corrosive HCl gas (Handling 365bet娱乐 Safely, 1980 p. 924). In experiments at Argonne National Laboratory, in which it was mixed with water and stirred at room conditions, about 50 percent of the theoretical yield of HCl evolved as a gas in the first 30 minutes (Brown, D. F., et al. (2005) Development of the Table of Initial Isolation and Protective Action Distances for the 2004 Emergency Response Guidebook, ANL/DIS-05-2, Argonne National Laboratory, Argonne IL).

ETHYLTRICHLOROSILANE is highly flammable. The compound reacts violently with water, steam, moist air, alcohols, acetone, and light metals, generating heat, combustible hydrogen gas, and corrosive HCl gas. (Handling 365bet娱乐 Safely 1980. p. 924). In experiments at Argonne National Laboratory, in which it was mixed with water and stirred at room conditions, about 84 percent of the theoretical yield of HCl evolved as a gas in the first 6 minutes (Brown, D. F., et al. (2005) Development of the Table of Initial Isolation and Protective Action Distances for the 2004 Emergency Response Guidebook, ANL/DIS-05-2, Argonne National Laboratory, Argonne IL).

HEXADECYLTRICHLOROSILANE reacts vigorously with water, steam, moist air, alcohols, acetone, and light metals, generating heat, combustible hydrogen gas, and corrosive HCl gas. On contact with air it gives off HCl fumes (Handling 365bet娱乐 Safely, 1980 p. 924).

HEXYLTRICHLOROSILANE fumes in air. The compound reacts violently with water, steam, moist air, alcohols, acetone, and light metals, generating heat, combustible hydrogen gas, and corrosive HCl gas (Handling 365bet娱乐 Safely, 1980 p. 924). In experiments at Argonne National Laboratory, in which it was mixed with water and stirred at room conditions, about 40 percent of the theoretical yield of HCl evolved as a gas in the first 15 minutes (Brown, D. F., et al. (2005) Development of the Table of Initial Isolation and Protective Action Distances for the 2004 Emergency Response Guidebook, ANL/DIS-05-2, Argonne National Laboratory, Argonne IL).

METHYLPHENYLDICHLOROSILANE is highly flammable and insoluble in water, reacting vigorously to generate gaseous HCl. In experiments at Argonne National Laboratory, in which it was mixed with water and stirred at room conditions, about 20 percent of the theoretical yield of HCl evolved as a gas in the first 40 minutes (Brown, D. F., et al. (2005) Development of the Table of Initial Isolation and Protective Action Distances for the 2004 Emergency Response Guidebook, ANL/DIS-05-2, Argonne National Laboratory, Argonne IL).

METHYLTRICHLOROSILANE fumes in air. The compound reacts violently with water, steam, moist air, alcohols, acetone, and light metals, generating heat, combustible hydrogen gas, and corrosive HCl gas (Handling 365bet娱乐 Safely 1980. p. 924). In experiments at Argonne National Laboratory, in which it was mixed with water and stirred at room conditions, about 34 percent of the theoretical yield of HCl evolved as a gas in the first 20 minutes (Brown, D. F., et al. (2005) Development of the Table of Initial Isolation and Protective Action Distances for the 2004 Emergency Response Guidebook, ANL/DIS-05-2, Argonne National Laboratory, Argonne IL).

NONYLTRICHLOROSILANE reacts violently with water, steam, moist air, alcohols, acetone, and light metals, generating heat, combustible hydrogen gas, and corrosive HCl gas (Handling 365bet娱乐 Safely 1980. p. 924). In experiments at Argonne National Laboratory, in which it was mixed with water and stirred at room conditions, about 52 percent of the theoretical yield of HCl evolved as a gas in the first 40 minutes (Brown, D. F., et al. (2005) Development of the Table of Initial Isolation and Protective Action Distances for the 2004 Emergency Response Guidebook, ANL/DIS-05-2, Argonne National Laboratory, Argonne IL).

OCTADECYLTRICHLOROSILANE reacts violently with water, steam, moist air, alcohols, acetone, and light metals with generation of heat, combustible hydrogen gas, and corrosive HCl gas (Handling 365bet娱乐 Safely 1980. p. 924). In experiments at Argonne National Laboratory, in which it was mixed with water and stirred at room conditions, about 50 percent of the theoretical yield of HCl evolved as a gas in the first 20 minutes (Brown, D. F., et al. (2005) Development of the Table of Initial Isolation and Protective Action Distances for the 2004 Emergency Response Guidebook, ANL/DIS-05-2, Argonne National Laboratory, Argonne IL).

PHENYLTRICHLOROSILANE reacts violently with water, steam, moist air, alcohols, acetone, and light metals, generating heat, combustible hydrogen gas, and corrosive HCl gas. (Handling 365bet娱乐 Safely 1980. p. 924). In experiments at Argonne National Laboratory, in which it was mixed with water and stirred at room conditions, about 50 percent of the theoretical yield of HCl evolved as a gas in the first 6 minutes (Brown, D. F., et al. (2005) Development of the Table of Initial Isolation and Protective Action Distances for the 2004 Emergency Response Guidebook, ANL/DIS-05-2, Argonne National Laboratory, Argonne IL).

PROPYLTRICHLOROSILANE fumes in air. Reaction products include HCl gas on contact with moist air. Reacts violently with water and steam, with generation of heat, combustible hydrogen gas, and corrosive HCl gas (Handling 365bet娱乐 Safely 1980 p. 924). In experiments at Argonne National Laboratory, in which it was mixed with water and stirred at room conditions, about 90 percent of the theoretical yield of HCl evolved as a gas in the first 18 minutes [Brown, D. F., et al. (2005) Development of the Table of Initial Isolation and Protective Action Distances for the 2004 Emergency Response Guidebook, ANL/DIS-05-2, Argonne National Laboratory, Argonne IL].

SILICON TETRACHLORIDE fumes in air. The compound is decomposed by water or moist air, generating heat, silicic acid, and hydrochloric acid (The Merck Index, Rahway (NJ), Merck and Co. Inc., 11th ed. 1989). In experiments at Argonne National Laboratory, in which it was mixed with water and stirred at room conditions, about 35 percent of the theoretical yield of HCl evolved as a gas in the first 7 minutes [Brown, D. F., et al. (2005) Development of the Table of Initial Isolation and Protective Action Distances for the 2004 Emergency Response Guidebook, ANL/DIS-05-2, Argonne National Laboratory, Argonne IL].

TRICHLOROSILANE ignites spontaneously in air (Hazardous Chemical Reactions, NFPA 491M, Quincy (MA), National Fire Protection Association, 10th ed., 1991). The compound reacts violently with water, steam, and moisture in the air to generate heat, flammable hydrogen gas, and corrosive HCl gas. (Handling 365bet娱乐 Safely 1980. p. 924).

TRIMETHYLCHLOROSILANE reacts exothermically with water to produce hydrogen chloride, among other products. The heat may be sufficient to ignite nearby combustible materials. In experiments at Argonne National Laboratory, in which it was mixed with water and stirred at room conditions, about 36 percent of the theoretical yield of HCl evolved as a gas in the first 5 minutes (Brown, D. F., et al. (2005) Development of the Table of Initial Isolation and Protective Action Distances for the 2004 Emergency Response Guidebook, ANL/DIS-05-2, Argonne National Laboratory, Argonne IL).

VINYLTRICHLOROSILANE reacts violently with water, steam, moist air, alcohols, acetone, and light metals, generating heat, combustible hydrogen gas, and corrosive HCl gas (Handling 365bet娱乐 Safely 1980. p. 924). In experiments at Argonne National Laboratory, in which it was mixed with water and stirred at room conditions, about 56 percent of the theoretical yield of HCl evolved as a gas in the first 2 minutes (Brown, D. F., et al. (2005) Development of the Table of Initial Isolation and Protective Action Distances for the 2004 Emergency Response Guidebook, ANL/DIS-05-2, Argonne National Laboratory, Argonne IL).

Potential Gas Byproducts

• Hydrogen Chloride (HCl)
• Acid Fumes
• Hydrocarbons
• Hydrogen (H2)