The preparation of zinc sulfate heptahydrate and copper sulfate pentahydrate from calcined zincblende was investigated.
用经高温煅烧后的闪锌矿石与稀硫反应制备七水硫
锌和五水硫
。
The preparation of zinc sulfate heptahydrate and copper sulfate pentahydrate from calcined zincblende was investigated.
用经高温煅烧后的闪锌矿石与稀硫反应制备七水硫
锌和五水硫
。
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的研究中发现淡水和合适浓度的福尔林、硫
和盐霉素钠是比较好的防治办法。
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.
铁件在由硫、硫
亚锡、络合剂、稳定剂等组成的溶液中,可以置换
覆不同锡质量分数的
- 锡合金
层,其工艺可替代氰化物
,消除氰化物污染,是实现电
清洁生产措施之一。
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