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+86-13971029269
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ADD.: Rm 1013,BLDG 3,Area C,Hankou City Plaza,Houhu Avenue,Wuhan
地址：武汉市江岸区后湖大道汉口城市广场C区3号楼1013
网址：www.zoyochem.com
| ITEM | STANDARD | |
| Appearance | White Crystalline Powder | |
| Identification | Positive | |
| Whiteness | > 80 | |
| Assay | > 99% | |
| Loss on Drying | =< 0.5% | |
| Acidity and Alkalinity | =< 1% | |
| Solubility | Freely soluble in water, practically insoluble in ethanol | |
| Heavy Metals (as Pb) | =< 1mg/ kg | |
| Arsenic | =< 0.5mg/ kg | |
| Ammonium (as NH﹢4) | =< 100mg/ kg | |
| Sodium Chloride | =< 1.45% | |
| Water Insoluble Impurities | =< 0.05% | |
| Water Insoluble Residue | =<0.05% | |
