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Lead-based or tin-based bearing alloys. Collectively with the lead-based bearing alloys are known as the Bartholomew alloys. Contains antimony 3% to 15%, copper 3% to 10%, some alloy varieties also contain 10% of lead. Antimony and copper are used to improve the strength and hardness of the alloy. Its small coefficient of friction, good toughness, thermal conductivity and corrosion resistance, mainly used to manufacture sliding bearings.
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Arsenic is an essential trace element for animal growth. When animals lack arsenic, their fertility status will be affected, and the yield and quality of meat, eggs and milk provided to humans will be decreased, such as the decrease of amino acid absorption in poults, the decrease of conception rate in sows, and the decrease of milk production in goats.
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Properties: Odorless. White powder or crystal. There are three crystalline forms: monoclinic crystal relative density 4.15, 193℃ sublimation; cubic crystal relative density 3.865; amorphous body relative density 3.738, melting point 312.3℃. Slightly soluble in water to produce arsenious acid. Monoclinic and cubic crystals are soluble in ethanol, acids and bases; amorphous body is soluble in acids and bases, but insoluble in ethanol. The industrial product is slightly red, gray or yellow depending on the impurities it contains.
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Mainly used in rubber or cable industry as reinforcing agent and active agent, also used as coloring agent and filling agent of white rubber, used as vulcanizing agent in chloroprene rubber, etc.
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Jianshui County Gongchuang Environmental Protection Technology Co.
Non-ferrous metal smelting waste collection, storage and utilisation; non-ferrous metal smelting, processing and sales; arsenic trioxide and metallic arsenic production, processing and sales; benzylarsonic acid production, processing and sales; lead, zinc, tin, iron and manganese ore purchase and sale.
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