The preparation of zinc sulfate heptahydrate and copper sulfate pentahydrate from calcined zincblende was investigated.
用经高温煅烧后闪锌矿石与稀反应制备七水锌和五水。
The preparation of zinc sulfate heptahydrate and copper sulfate pentahydrate from calcined zincblende was investigated.
用经高温煅烧后闪锌矿石与稀反应制备七水锌和五水。
Freshwater and suitable concentration of formalin, copper sulfate and sodium salinomycin were the better way to prevent and cure Cryptocaryoniosis.
在药物防治刺激隐核虫研究中发现淡水和合适浓尔林、和盐霉素钠是比较好防治办法。
Cu-Sn alloy coating with different Sn content can be replacement plating out on iron and steel surface in a solution comprising of copper sulfate, stanous sulfate, complexant and stabilization agent.
铁件在由、亚锡、络合剂、稳定剂等组成溶液中,可以置换镀覆不同锡质量分数- 锡合金镀层,其工艺可替代氰化物预镀,消除氰化物污染,是实现电镀清洁生产措施之一。
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