The preparation of zinc sulfate heptahydrate and copper sulfate pentahydrate from calcined zincblende was investigated.
温煅烧后
闪锌矿石与稀硫酸反应制备七水硫酸锌和五水硫酸
。
The preparation of zinc sulfate heptahydrate and copper sulfate pentahydrate from calcined zincblende was investigated.
温煅烧后
闪锌矿石与稀硫酸反应制备七水硫酸锌和五水硫酸
。
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度
福尔
林、硫酸
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.
铁件在由硫酸、硫酸亚锡、络合剂、稳定剂等组成
溶液中,可以置换镀覆不同锡质量分
- 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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