Corrosive to aluminum; soluble in ammonium hydroxide Arsine 7784-42-1 77.95 Slightly; 28 mL/100 g water (760 mm) at 20 degrees C Colorless, neutral gas; disagreeable garlic odor On exposure to light, moist arsine decomposes quickly depositing shiny black arsenic; human inhalation - TCLo - 3 mL/m 3 , LCLo (30 min) - 25 mL/m 3 , TCLo - 93 uL/m 3 Cadmium 7440-43-9 112.41 Insoluble in water 1 mm Hg at 394 deg C Silver-white blue- tinged lustrous solid; malleable; odorless. Tarnishes in moist air. Becomes brittle at 80 deg C Dichloromethane 75-09-2 84.93 Soluble in about 50 parts water Colorless liquid Vapor is not flammable and when mixed with air is not explosive; LD50 (orally) in rats - 1.6 ml/kg Diborane 19287-45- 7 27.67 Hydrolizes quickly; Hydrolizes in water to H 3 BO 3 . 224 mm Hg at 112 deg C Colorless, flammable gas; repulsive, sickly- sweet odor Reacts with NH 3 to form diborane diammoniate; reacts slowly with Br 2 and explosively with Cl 2 to form boron halides; reacts with hydrocarbons or organoboron compounds to give alkyl- or aryl- boron compounds B-2
Physical and Chemical Properties of Selected Chemicals and Compounds Used in Photovoltaic Cells Chemical CAS Molecular Weight (g/mol) Water Solubility Vapor Pressure Description Comments Ethyl acetate 141-78-6 88.11 More soluble at lower temperatures and less soluble at higher temperatures; 7.87 g/100 g water at 18 deg C 93.2 mm Hg at 25 deg C Clear, volatile, flammable liquid; agreeable odor; pleasant taste when diluted / bittersweet, wine-like burning taste Ethyl vinyl acetate Acetaldehyde is a hydrolysis product of vinyl acetate Gallium 7440-55-3 69.72 Reacts with alkalies to evolve H 2 Grayish metal or silvery white liquid Reacts with alkalies with evolution of hydrogen; readily attacked by halogens Germane 7782-65-2 76.64 Colorless gas LD100 (mouse inhalation) - 610 mg/m 3 Germanium 7440-56-4 72.59 Insoluble in water 0 mm Hg at 25 deg C Grayish-white, lustrous, brittle metalloid Relatively stable, unaffected by air, becomes oxidized above 600 deg C Germanium tetrafluoride 148.6 Hydrolizes in water to GeO 2 and H 2 GeF 6 . Colorless gas; odor of garlic Thermally stable up to about 1000 deg C Hydrochloric acid (hydrogen chloride) 7647-01-0 36.46 82.3 g/100 g water at 0 deg C; 67.3 g/ 100 g water at 30 deg C; 56.1 g/100 g water at 60 deg C Fumes in air (may be colored yellow by traces of iron, chlorine, and organic matter); suffocating odor Causes corrosive burns to skin Hydrogen 1333-74-0 2.016 0.0182 v/v at 20 deg C Colorless gas Flammable gas;explosive when mixed with oxygen, chlorine, or air Hydrogen fluoride 7664-39-3 20.006 Very soluble in water Colorless, fuming, mobile liquid; solid phase is HF Highly irritating, corrosive, and poisonous; Anhydr HF is one of the most acidic substances known; LC50 (1 hr) in rats, mice, monkeys: 1278, 500, 1780 ppm by inhalation B-3
Physical and Chemical Properties of Selected Chemicals and Compounds Used in Photovoltaic Cells Chemical CAS Molecular Weight (g/mol) Water Solubility Vapor Pressure Description Comments Hydrogen sulfide 7783-06-4 34.08 In water, 3980 mg/l at 20 deg C 1.56X10 4 mm Hg at 25 deg C Colorless gas; strong odor of rotten eggs; sweetish taste.
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