White and monoclinic crystalline powder; Odourless and colorless; Soluble in diluted Hydrochloric Acid, Nitric Acid and Acetic Acid; Slightly soluble in water but insoluble in Ethanol; Relative density 2.32; Stable in air; To lose crystal water at 75°C and then turn into Dicalcium Phosphate Anhydrous.
Quality standard of Dicalcium phosphate Dihydrate:
Name of indexes | GB1889-2004 | FCC-IV | USP-23 |
Appearance | White powder | White powder | White powder |
Assay (as CaHPO4.2H2O),% | 98.0-103.0 | 97.5-105.0 | 97.0-105.0 |
Fluoride, ≤% | 0.005 | 0.005 | 0.005 |
Loss on ignition, % | 24.5-26.5 | 24.5-26.5 | 24.5-26.5 |
Heavy metals(as Pb), ≤% | 0.001 | 0.0015 | 0.0015 |
Pb, ≤% | 0.0005 | 0.0002 | 0.0002 |
As, ≤% | 0.0002 | 0.0003 | 0.0003 |
Insolubles in Hydrochloric Acid ≤% | 0.05 | - | 0.02 |
Chloride ≤% | - | - | 0.25 |
Quality standard of Dicalcium phosphate anhydrous
Name of indexes | FCC-IV | USP-23 |
Appearance | Whitish powder | Whitish powder |
Assay (As CaHPO4), % | 97.0-105.0 | 98.0-105.0 |
Fluoride, ≤% | 0.005 | 0.005 |
Loss on drying, ≤% | 7.0-8.5 | 6.6-8.5 |
Heavy metals(As Pb), ≤% | 0.0015 | 0.0015 |
Pb, ≤% | 0.0002 | - |
As, ≤% | 0.0003 | 0.0003 |
Insolubles in HCI, ≤% | - | 0.2 |
Chloride, ≤% | - | 0.25 |
Sulphate (SO4), ≤% | - | 0.5 |
Carbonate | - | Test passed |
Barium | - | Test passed |
Usage:In food processing industry, it is used as leavening agent and modifier, buffer, nutritional supplement, emulsifier, stailizer for dough, cake, pastry and bakery.
Packing and Storage
It is packed with ployethylene bags as line-r , and a woven bag as the outer layer. The net weight of each bag is 25kg. It should be stored in a dry, ventilative and clean warehouse; Keep away from moisture, heat and poisonous substances.
Di Calcium Phosphate(food grade)