“98.0%焦亚硫酸钠”参数说明
形态: | 粉末状 | 等级标准: | 食品级 |
商标: | Hailan | 包装: | 用塑料编织袋内衬聚乙烯袋。25/50kg |
产量: | 12000 |
“98.0%焦亚硫酸钠”详细介绍
性质:白色或微黄色结晶粉末或小结晶,带有强烈的SO2气味,比重1.4,溶于水,水溶液呈酸性,与强酸接触则放出SO2而生成相应的盐类,久置空气中,则氧化成Na2SO4,故该产品不能久存。高于150℃,即分解出SO2。
分子式: Na2S2O5
分子量:190.10
CAS NO.:7681-57-4
Item Quality Index
Food Grade
Industry Grade
Purity ( As Na2S2O5) 98.0% min
96.0% min
Sulfur Dioxide( SO2) 65.0% min
65.0% min
Arsenic ( As ) 0.0002% max
-
Heavy metals ( As Pb ) 0.0005% max
-
Selenium (Se ) 0.0005% max
-
Iron (Fe) 0.001% max
0.002% max
Water insoluble 0.02% max
0.05% max
分子式: Na2S2O5
分子量:190.10
CAS NO.:7681-57-4
Item Quality Index
Food Grade
Industry Grade
Purity ( As Na2S2O5) 98.0% min
96.0% min
Sulfur Dioxide( SO2) 65.0% min
65.0% min
Arsenic ( As ) 0.0002% max
-
Heavy metals ( As Pb ) 0.0005% max
-
Selenium (Se ) 0.0005% max
-
Iron (Fe) 0.001% max
0.002% max
Water insoluble 0.02% max
0.05% max