Calcium phosphate

Calcium Phosphate

Formula: Ca3(PO4)2;Ca5OH(PO4)3; Ca10(OH)2(PO4)6

Molecular weight: 310.18; 502.31; 1004.61

Appearance: White non-qualitative powder

Odor: Odorless,tasteless

CAS Number: [ 7758-87-4]; [ 1306-06-5]; [62974-97-4]

EINECS No.: 231-840-8

INS: 341(iii)

Solibility: Insoluble in ethanol and acetone, slightly soluble in water, soluble in hydrochloric acid and nitric acid.

Uses: Food-nutritional supplement in food、yeast food.

Animal oil refining auxiliaries、antitackiness agent.

PH regulator、buffering agent.

Free-flow agent for dry beverage and other food products.

A source of calcium and phosphorus in nutritional supplements.

Category

Specifications

Test Parameter Ph.Eur USP-NF E341(iii) FCC
Appearance White or almost
white powder
White or almost
white powder
White or almost
white powder
Occurs as a
white powder
Identification A Passes test Passes test Passes test Passes test
Identification B Passes test Passes test Passes test Passes test
Identification C It complies with the
limits of the assay
Assay【as Ca】 35.0%~40.0% 34.0%~40.0% 34.0%-40.0%
Assay【ignited
basis】
≥90.0%
P2O5 38.5-48.0%
Loss on ignition ≤8.0% ≤8.0% ≤8.0% ≤10.0%
Heavy metal(as Pb) ≤0.003%
Mercury ≤1.0ppm
Arsenic ≤4.0ppm ≤3.0ppm ≤1.0ppm ≤3.0ppm
Lead ≤1.0ppm ≤2.0ppm
Cadmium ≤1.0ppm
Aluminium ≤150.0ppm
Chloride ≤0.15% ≤0.14%
Sulfate ≤0.5% ≤0.8%
Water-soluble
substances
≤0.5%
Acid-insoluble
substances
≤0.2% ≤0.2%
Carbonate To pass the test
Barium To pass the test
Dibasic salt and
calcium oxide
To pass the test
Limit of fluoride ≤75.0ppm ≤75.0ppm ≤50.0ppm ≤75.0ppm
Iron ≤400.0ppm
Particle size:
Fine powder (D50)
2.0-4.0 microns Not a compendial specification
6.0-9.0 microns Not a compendial specification
10.0-12.0 microns Not a compendial specification
Thru 325 mesh ≥95.0% Not a compendial specification
Granular Not a compendial specification

 

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