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Product Name: Bromine
Molecular formula: Br2
Appearance: It is the only liquid non-metallic element at room temperature, with a dark reddish brown liquid.
Melting point -7.2 ℃ boiling point 58.78 ℃ relative density 3.119(20 ℃).
Slightly soluble in water, solubility of 3.58g/100ml water (20 ℃); soluble in ethanol, ether, chloroform, carbon tetrachloride, kerosene and carbon disulfide and other organic solvents; also soluble in hydrochloric acid, hydrobromic acid and bromine compound solution.
Easily volatile, there is a suffocating odor. It is highly toxic, burns the skin, and severely irritates the mucous membranes and respiratory tract. Slightly soluble in water, soluble in organic solvents. The chemical activity is slightly worse than that of chlorine. Can be combined with most metals and non-metals. A strong oxidant, bromine occurs mainly as an alkali metal bromide in seawater. It can be extracted from bromide in seawater.
Bromine, also known as industrial bromine, is an important chemical raw material, which is widely used in flame retardants, fire extinguishing agents, refrigerants, photosensitive materials, pharmaceuticals, pesticides, petrochemicals and other industries. It is widely used in the petroleum industry to manufacture ethylene dibromide and is used as an antiknock agent for petroleum fuels. Although trace amounts are added, it can greatly improve the performance of gasoline. Bromine is used in the pharmaceutical industry in the production of sodium bromide, potassium bromide, ammonium bromide, calcium bromide and other sedatives and mercuric drops, as well as in the manufacture of chloramphenicol, chlortetracycline, zygomycin and other antibiotics and hormone intermediates of vitamin A. In the plastics industry, the development of bromine series flame retardants has significantly improved the fire resistance of plastic products. In the fuel industry, it is used to manufacture eosin, tetrabromoindigo, etc. It is used in the manufacture of fumigants, insecticides and plant growth hormones on pesticides. In addition, bromine can also produce sodium bromate, potassium bromate, lithium bromide, hydrobromic acid and other inorganic chemical products.
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