Preparation of stannous chloride
    5.
    发明授权
    Preparation of stannous chloride 失效
    氯化钠的制备

    公开(公告)号:US3816602A

    公开(公告)日:1974-06-11

    申请号:US19937571

    申请日:1971-11-16

    发明人: HYATT D

    IPC分类号: C01G19/02 C01G19/06

    CPC分类号: C01G19/06

    摘要: STANNOUS CHLORIDE IS PREPARED IN THE FORM OF THE DIHYDRATED BY REACTING TIN METAL, STANNIC CHLORIDE AND AN AMOUNT OF WATER SUFFFICIENT TO FORM THE DIHYDRATE. THE REACTION IS CONDUCTED AT AN ELEVATED TEMPERATURE, E.G., AT THE BOILING TEMPERATURE OF THE REACTION MIXTURE. ANHYDROUS STANNOUS CHLORIDE MAY BE OBTAINED BY DEHYDRATION OF THE DIHYDRATE, AS BY DRYING IT UNDER REDUCED PRESSURE.

    Hydrazinium sulphosalicylate
    6.
    发明授权
    Hydrazinium sulphosalicylate 失效
    硫酸氢钠

    公开(公告)号:US5202470A

    公开(公告)日:1993-04-13

    申请号:US615223

    申请日:1990-11-19

    申请人: Erich Ruf

    发明人: Erich Ruf

    摘要: The invention provides a compound of the formula[NH.sub.2 NH.sub.2 ].sub.a [C.sub.6 H.sub.3 (COOH) (SO.sub.3 H) (OH)].sub.bwhereina is 1 andb is from 1 to 2.The compound is useful for stabilizing tin (II) compounds against oxidation, in particular in the electrolytic coloring of aluminium or aluminium alloys.

    摘要翻译: 本发明提供式[NH 2 NH 2] a [C 6 H 3(COOH)(SO 3 H)(OH)] b的化合物,其中a为1,b为1至2.该化合物可用于稳定锡(II) ,特别是在铝或铝合金的电解着色中。