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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 powder |
| Purity(as c4h6o6) | 99.5 -100.5% |
| Specific rotation(20 ℃) | +12.0 ° --- +13.0 ° |
| Heavy metals( as pb) | 10 ppm max |
| Residue on ignition | 0.05% max |
| Arsenic(as as) | 3 ppm max |
| Loss on drying | 0.2% max |
| Chloride | 100 ppm max |
| Sulfate | 150 ppm max |
| Oxalate | 350 ppm max |
| Calcium | 200 ppm max |
| Water solution clarity | Conforms to the STANDARD |
| Color | Conforms to the STANDARD |
