Calcium Malate food grade, clear solute at PH4.0-8.0
Description
Chemical name: Calcium DL-malate; calcium-α-hydroxysuccinate; calcium salt of hydroxybutanedioic acid
Chemical formula: C4H5CaO5
Molecular weight: 172,14
Solubility Slightly: soluble in water
Quality Standard:
| Items | Sepcifications | Results | |
| Charactor | White powder | White powder | |
| Assay(as Ca) % | 20.5-22.0 | 21.68 | |
| Ø | Make up citric acid solution in | Confirm | |
| water to pH 3.3-3.5. Add about | |||
| 3 grams calcium malate per | |||
| 230ml acid solution, stir at | |||
| 300r/min, completely clear up | |||
| Solubility | to be a clear solution about 30 | ||
| minutes. | |||
| Ø Let stand without any stirring, | |||
| the solution is completely | |||
| clarified for four and a half | |||
| hours | |||
| PH（3%solution） | 4.0-8.0 | 5.1 | |
| Maleic acid % | ≤0.05 | ≤0.05 | |
| Fumaric acid % | ≤1.0 | ≤1.0 | |
| Heavy metal % | ≤0.002 | ＜0.002 | |
| Pb mg/kg | ≤3 | 0.8 | |
| As mg/kg | ≤1 | 0.1 | |
| Hg mg/kg | ≤1 | 0.1 | |
| Loss on | ≤5.0 | 4.7 | |
| drying(4h/150℃) % | |||
| Flouride % | ＜0.003 | ＜0.003 | |
| Bulk density | 0.5g/ml min | 0.61g/ml | |
Packing: 25kgs net paper bags or 25kgs net plastic woven bags
Storage and transport: It should be stored in a ventilative and dry warehouse instead of in the open air, kept away from water, moisture and sunlight during transport, handled with care, so as to avoid damage to plastic bags. Furthermore, it should be stored separately from poisonous substances.
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