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

化工生产品中腐蚀性物料，如：碱、纯碱、浓稀硫酸、碳酸、醋酸等。

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

用经高闪锌矿石与稀硫酸反应制备七水硫酸锌和五水硫酸铜。

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混合液中，不能溶于稀硫酸中。