Corrosively medium for chemical production such as sodium hydrate,caustic soda,sulfuric acid,nitric acid,acetic acid,fatty acid.

化工生产品中的腐蚀性物料，如：碱、纯碱、浓稀硫酸、碳酸、醋酸。

The preparation of zinc sulfate heptahydrate and copper sulfate pentahydrate from calcined zincblende was investigated.

高温煅后的闪与稀硫酸反应制备七水硫酸和五水硫酸铜。

Which indubitably indicate that the bismuthous sulfide can only dissolve in halogen acid except hydrofluoric acid, the mixed solution of dilute sulfuric acid and alkali halide.

结果表明硫化铋只能溶于氢卤酸（除氢氟酸外）、稀硫酸与碱金属卤化物的混合液中，不能溶于稀硫酸中。