Tetrabromothanl(Sym)为家长教师会的规定

1. Product Name and Physical & Chemical Properties Chemical Name: Tetrabromoethane(Sym) Sym-Tetrabromoethane 1,1,2,2,-Tetrabromoethane Acetylene tetrabromomide Molecular formula: C2H2Br4 Molecular weight:345.67 Physical and chemical properties: Colorless transparent oily liquid. Smells of camphor and iodoform. Slightly soluble in water. Can be mixed with ethanol, ethyl ether, chloroform, anline, glacial acetic acid and etc. Relative density (d420) 2.9656. Bolling point 243.5(dissolving). Slowly dissolved and turn yellow if illuminated or heated. Freezing point -1. Refractive index (ND20)1.638. Nonflammable. 2. Quality Standards Our company runs the National Standard HG/T2423-1993. Technical parameters: Item Best Quality Appearance Colorless or light yellow transparent liquid Saturation (APHA) 80max. Relative density 25/25oC 2.955 to 2.965 Freezing point, oC -2 to 0 Content,% 99min. PH 5.0 to 7.0 Content of inorganic halide 10-6 15.0 max 3 Application Used as catalyst accelerators for the PTA production, used for making quartermary ammonium salt compounds and buming rate accelerators in the organic synthesis industry. 4.Package and Storage Net weight 150kg each barrel, the iron barrel lined with a plastic film. Stock in cool and ventilated places, keep out of moisture and the sun. 5.Period of quality guarantee 18 months.