Calcium Malate

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
Ø Let stand without any stirring,
the solution is completely
clarified for four and a half
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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