Metal oxide remover and method of using
    71.
    发明授权
    Metal oxide remover and method of using 失效
    金属氧化物去除剂及其使用方法

    公开(公告)号:US4529450A

    公开(公告)日:1985-07-16

    申请号:US542926

    申请日:1983-10-18

    CPC分类号: C23G1/088 C23G1/025 C23G1/125

    摘要: A metal oxide composition containing a water soluble polymer, erythorbic acid, a surfactant, a buffer, ascorbic acid (optional), and citric acid (optional). The novel composition may be used according to at least two novel methods. The composition may be sprinkled as a powder onto a wetted, oxidized surface, and then rinsed off, or it may be dissolved in water and the metal surface exposed to the resulting solution.

    摘要翻译: 包含水溶性聚合物,异抗坏血酸,表面活性剂,缓冲剂,抗坏血酸(任选的)和柠檬酸(任选的)的金属氧化物组合物。 可以根据至少两种新方法使用该新型组合物。 组合物可以作为粉末喷洒到润湿的氧化表面上,然后冲洗掉,或者将其溶解在水中,并将金属表面暴露于所得溶液中。

    Metal oxide remover for stainless steels
    72.
    发明授权
    Metal oxide remover for stainless steels 失效
    不锈钢金属氧化物去除剂

    公开(公告)号:US4470920A

    公开(公告)日:1984-09-11

    申请号:US515881

    申请日:1983-07-19

    CPC分类号: C23G1/088 C11D7/265

    摘要: A composition for removing metal oxides from stainless steel is disclosed. The composition is an aqueous solution of nitric acid, sulfamic acid and a chelating agent selected from a group comprising amino acids and hydroxy acids. The solution should be applied at an elevated temperature.

    摘要翻译: 公开了一种从不锈钢中除去金属氧化物的组合物。 组合物是硝酸,氨基磺酸和选自氨基酸和羟基酸的螯合剂的水溶液。 该溶液应在升高的温度下使用。