TRICALCIUM PHOSPHATE
1, molecular formula: Ca3 (PO4) 2; Ca5OH (PO4) 3; Ca10 (OH) 2(PO4) 6
2, molecular weight: Ca3 (PO4) 2 310.18; Ca5OH (PO4) 3 502.31; Ca10 (OH) 2 (PO4) 6 1004.61
3, Specificity: the composition of a mixture of different calcium phosphate, roughly composed of 10CaO, 3P2O5, H2O, molecular weight of 1004.64. White amorphous powder, odorless,tasteless. Relative density 3.18. Difficult to dissolve in water, soluble in dilute hydrochloric acid and nitric acid. Stable in the air.
4, Usage: In food industry, it is used as leavening agent, dough regulator, buffer,modifier, curing agent, nutritional supplement, chelate agent, flulty and so on. Used as fermentation agent, buffering agent and curing agent (gelation) for bread and biscuit, as modifier for yeast food and meat. To improve saccharification and fermentation in brewing, improve the ability of fermentation.
5, Packing: Packed with polyethylene plastic bag as liner, and woven bag as the outer layer. The net weight of each bag is 25kg.
Name of index | Unit | FCC-V | E 341(iii) | USP-30 |
Assay | % | 34.0-40.0(as Ca) | ≥90(On the ignited basis) | 34.0-40.0 (as Ca) |
P2O5 Content | % | -- | 38.5--48.0 (Anhydrous basis) | -- |
Description |
| a white, odourless powder which is stable in air |
Identification |
| Pass test | Pass test | Pass test |
Water-soluble substance | ≤% | -- | -- | 0.5 |
Acid-insoluble substance | ≤% | -- | -- | 0.2 |
Carbonate |
| -- | -- | Pass test |
Chloride | ≤% | -- | -- | 0.14 |
Sulfate | ≤% | -- | -- | 0.8 |
Dibasic salt and calcium oxide |
| -- | -- | Pass test |
Solubility tests |
| -- | Practically insoluble in water, insoluble in ethanol soluble in dilute hydrochloric and nitric acid | -- |
Arsenic , | ≤mg/kg | 3 | 1 | 3 |
Barium |
| -- | -- | Pass test |
Fluoride | ≤mg/kg | 75 | 50(expressed as fluorine) | 75 |
Nitrate |
| -- | -- | Pass test |
Heavy metals | ≤mg/kg | -- | -- | 30 |
Lead | ≤mg/kg | 2 | 1 | -- |
Cadmium | ≤mg/kg | -- | 1 | -- |
Mercury | ≤mg/kg | -- | 1 | -- |
Loss on ignition | ≤% | 10.0 | 8.0(800℃±25℃,0.5h) | 8.0 (800℃,0.5h) |
Aluminium |
| -- | Not more than 150 mg/kg (only if added to food for infants and young children) Not more than 500 mg/kg (for all uses except food for infants and young children). This applies until 31 March 2015 Not more than 200 mg/kg (for all uses except food for infants and young children). This applies from 1 April 2015. | -- |
Calcium phosphate can be used as feed additive for poultry, which can promote feed digestion, increase poultry weight, and treat rickets and rickets of livestock. It is used as anti caking agent, acidity regulator, nutritional supplement, flavoring agent, stabilizer and water retention agent in food industry. This product is also used in the manufacture of ceramics, colored glass and milk glass. It can also be used as dental adhesive, plastic stabilizer, polishing powder, syrup clarifier and chemical fertilizer. It is also used in rubber and printing and dyeing industry, and as acid making agent in medicine.
IUPAC
tricalcium;diphosphate
SMILES
[O-]P(=O)([O-])[O-].[O-]P(=O)([O-])[O-].[Ca+2].[Ca+2].[Ca+2]