China Super Lowest Price Alpha-Bromo-O-Tolunitrile factory - Sodium Thiocyanate – Kunxiangda factory and suppliers

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Super Lowest Price Alpha-Bromo-O-Tolunitrile factory - Sodium Thiocyanate – Kunxiangda Detail:

别名

硫氰化钠

英文名

Sodium Thiocyanate

分子式

NaSCN

分子量

81.07

物化性质

白色斜方晶系结晶或粉末，相对密度1.735，熔点约为287℃，易溶于水、乙醇、丙酮等溶剂，水溶液呈中性，遇铁盐生成血红色的硫氰化铁，遇亚铁盐不反应，与浓硫酸生成黄色的硫酸氰钠，预钴盐作用生成深蓝色的硫氰化钴，与银盐或铜盐作用生成白色的硫氰化银或黑色的硫氰化铜沉淀，在空气中易潮解。

用途

用作建筑用混凝土添加剂，水泥助磨剂，丙烯睛纤维抽丝溶剂，化学分析试剂，彩色电影胶片冲洗剂，某些植物脱叶剂以及机场道路除莠剂，还用于医药中间体、农药除草剂和杀虫剂的中间体、选矿药剂、印染、橡胶处理，黑色镀镍及制造人造芥子油等。

质量标准

应用类别	优级	优级	工业级	工业级	优级	工业级
含量%,(干基)≥	99	98.5	98.0	97.0	50-55 液体	50-55 液体
铁%,≤	0.0001	0.0002	0.0005	0.0006	0.0001	0.0002
水不溶物%,≤	0.005	0.006	0.006	0.007	0.001	0.005
水分%,≤	0.5	0.8	0.8	1.0	–	–
氯化物%,≤	0.02	0.05	–	–	0.02	–
硫酸盐%,≤	0.03	0.06	–	–	0.04	–
重金属%,≤	0.001	0.001	0.001	0.002	0.0005	0.001
PH	6-8	6-8	6-8	6-8	6-8	6-8

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