Profile: A & A Chemicals (Shanghai) Limited specializes in the manufacture and supply of various chemical products. Our products range from dyes, paints to organic, inorganic chemicals, intermediates and pharmaceuticals. Our main products include anthraquinone, boron tribromide, sulfamic acid, oxalic acid, sodium metabisulphite and sodium percarbonate. We also manufacture ammonium thiosulphate, aluminum fluoride, ammonium thiocyanate, aspartic acid, aspartame, benzophenone, caustic soda ( flakes, pearls), caustic potash, calcium hypochlorite, cuprous thiocyanate and potassium hydroxide. Anthraquinone is a yellow or gray-green crystal powder. It is used in the production of dyes, such as alizarin. It is also used as a catalyst in the production of chemical pulp by the Kraft or Soda-AQ processes. Boron tribromide is used as catalyst, intermediate & brominating agent in organic synthesis and is the raw material for making high-purity boron powder & other organboron compounds. It is also used as the dopant source of the semiconductor silicon. It is a colorless transparent liquid. Technical grade sodium metabisulfite is a white or yellowish crystal powder. It is mainly used as a dechlorinate of textile after bleaching, sulphonated agent & reducer of chemical industry & pharmacy, treatment agent of waste water and rubber solidifying agent. Our products are exported to various countries worldwide.