金属锶

金属锶   Strontium Metal      

分子式/Molecular Formula：Sr     CAS : 7440-24-6

特征及用途： 

银白色柔软金属，相对密度2.63，熔点：769℃，沸点：1384℃。活泼型强，空气中迅速被氧化，表面形成黄色氧化膜。

溶于酸类并产生氧气引起燃烧，溶于醇。用于铸造铝合金的变质剂和镁合金的细化剂，炼钢工业的优良脱氧剂，脱硫脱磷剂，

难熔金属的还原剂，是提高薄壁铸铁件力学性能的优良添加剂；在电真空技术中，被用作高效吸气剂。

Features & Usage:

silver-white soft metal, relative density 2.63, melting point: 769 ℃, boiling point: 1384 ℃.  strong activity,

rapidly oxidized in air, yellow oxide film formed on the surface. Soluble in acids and produce oxygen to

cause combustion, soluble in alcohols. Modifier for casting aluminum alloy and refiner for magnesium

alloy,deoxidizer, desulfurizer and dephosphorizer for steeling-making industry,

It is an excellent additive to improve mechanical properties of thin-walled iron castings;

Be used as a highly efficient getter in electric vacuum technology.