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By certification 
MF:C4H6O6nH2O(crystal:n=1,anhydrate n=0,)
  MW:168.11(crystal)150.09(anhydrate)
  Properties:Colorless crystal or white crystalline powder,no smell,acid.
  Quality index:
    GB15358-94
Item |
Index |
|
Catalyst |
Anhydrous |
|
| Assay(dry),%  ≥ | 99.5 |
99.5 |
| MP range,°C | 200-206 |
200-206 |
| Sulfate(SO4),%    ≤ | 0.04 |
0.04 |
| Heavy metal(as Pb),%     ≤ | 0.001 |
0.001 |
| As,%     ≤ | 0.0002 |
0.0002 |
| Easy oxide | OK |
OK |
| Loss on heat,%  ≤ | 11.5 |
0.5 |
| Residue on ignition,%   ≤ | 0.10 |
0.10 |
    BP98
Item |
Index |
| Contact % | 99.5-101.0 |
| Ca ≤% | 0.02 |
| Heavy metal(as Pb),%≤ | 0.001 |
| Oxide(Cl)≤% | 0.01 |
| Sulfate(SO4),%    ≤ | 0.015 |
| Oxalate (C2O4)≤% | 0.035 |
| Loss on heat,%  ≤(100-105°C) | 0.2 |
  Usage:Widely used in food industry,used as foaming agent of beer,acid taste agent,taste modified agent.
  Packing:25KG in plastic woven bag lined with kraft bag or composited bag.
