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Calcium Hydrogen Phosphate or Calcium Phosphate Dibasic or Dicalcium Phosphate Anhydrous and Dihydrate USP NF FCC Food Grade Supplier Exporter Manufacturers' Representative |
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Calcium Hydrogen Phosphate or Calcium Phosphate Dibasic or Dicalcium Phosphate Anhydrous and Dihydrate
CAS Number: 7757-93-9 Anhydrous and 7789-77-7 Dihydrate
Molecular Formula: CaHPO4 Anhydrous
Molecular Weight: 136.06 Anhydrous
Calcium Hydrogen Phosphate or Calcium Phosphate Dibasic or Dicalcium Phosphate
Anhydrous and Dihydrate
Dibasic Calcium Phosphate USP NF Grade Specifications
Dibasic Calcium Phosphate
CaHPO4 136.06
Phosphoric acid, calcium salt (1:1).
Calcium phosphate (1:1) CAS 7757-93-9
Dihydrate 172.09 CAS 7789-77-7
Dibasic Calcium Phosphate is anhydrous or contains two molecules of water of hydration. It contains not less than 98.0 percent and not more than 105.0 percent of anhydrous dibasic calcium phosphate (CaHPO4) or of dibasic calcium phosphate dihydrate (CaHPO4·2H2O).
Identification:
A: Dissolve about 100 mg by warming with a mixture of 5 mL of 3 N hydrochloric acid and 5 mL of water, add 2.5 mL of 6 N ammonium hydroxide drop wise, with shaking, and then add 5 mL of ammonium oxalate TS: a white precipitate is formed.
B: To 10 mL of a warm solution (1 in 100) in a slight excess of nitric acid add 10 mL of ammonium molybdate TS: a yellow precipitate of ammonium phosphomolybdate is formed.
Loss on ignition: Ignite it at 800 to 825 to constant weight: anhydrous Dibasic Calcium Phosphate loses between 6.6% and 8.5% of its weight, and the dihydrate form of Dibasic Calcium Phosphate loses between 24.5% and 26.5% of its weight.
Carbonate: Mix 1.0 g with 5 mL of water, and add 2 mL of hydrochloric acid: no effervescence occurs.
Chloride: To 0.30 g add 10 mL of water and 2 mL of nitric acid, and warm gently, if necessary, until no more dissolves. Dilute to 25 mL, filter, if necessary, and add 1 mL of silver nitrate. TS: the turbidity does not exceed that produced by 1.0 mL of 0.020 N hydrochloric acid (0.25%).
Sulfate: Dissolve 1.0 g in the smallest possible amount of 3 N hydrochloric acid, dilute with water to 100 mL, and filter, if necessary. To 20 mL of the filtrate add 1 mL of barium chloride. TS: the turbidity does not exceed that produced by 1.0 mL of 0.020 N sulfuric acid (0.5%).
Arsenic:The limit is 3 µg per g.
Barium: Heat 0.50 g with 10 mL of water, and add hydrochloric acid drop wise, stirring after each addition, until no more dissolves. Filter, and to the filtrate add 2 mL of potassium sulfate TS: no turbidity is produced within 10 minutes.
Heavy metals: the limit is 0.003%.
Limit of acid-insoluble substances: not more than 0.2% of acid-insoluble substances is found.
Limit of fluoride: [NOTE—Prepare and store all solutions in plastic containers.]: the limit is 0.005%.
We also offer Directly Compressible Dicalcium Phosphate
Calcium Phosphate, Dibasic FCC Food Grade Specifications
Dicalcium Phosphate
CaHPO4 Formula weight, anhydrous 136.06
CaHPO4·2H2O Formula weight, dihydrate 172.09
INS: 341(ii) CAS: anhydrous 7757-93-9
CAS: dihydrate 7789-77-7
DESCRIPTION
Calcium Phosphate, Dibasic, occurs as a white powder. It is anhydrous or contains two molecules of water of hydration. It is stable in air. It is insoluble in alcohol, is practically insoluble in water, but is readily soluble in dilute hydrochloric and nitric acids.
Function: Leavening agent; dough conditioner; nutrient; yeast food.
REQUIREMENTS
Identification:
A. Dissolve about 100 mg of sample by warming it with a mixture of 5 mL of 2.7 N hydrochloric acid and 5 mL of water. Add 2.5 mL of 6 N ammonium hydroxide, drop-wise, with shaking, and then add 5 mL of ammonium oxalate TS. A white precipitate forms.
B. Add 10 mL of ammonium molybdate TS to 10 mL of a warm 1:100 aqueous solution in a slight excess of nitric acid. A yellow precipitate of ammonium phosphomolybdate forms.
Assay Anhydrous or Dihydrate: Not less than 97.0% and not more than 105.0% Dibasic Calcium Phosphate.
Arsenic: Not more than 3 mg/kg.
Fluoride: Not more than 0.005%.
Lead: Not more than 2 mg/kg.
Loss on Ignition Anhydrous: Between 7.0% and 8.5%; Dihydrate: Between 24.5% and 26.5%.
We also offer Directly Compressible Dicalcium Phosphate
We also supply Calcium Phosphate Dibasic or Dicalcium Phosphate BP Ph Eur Grade Anhydrous and Dihydrate.
American Molecules, also known as ammol.org is a distributor, supplier and manufacturers' representative of all types of Pharmaceuticals, Functional Ingredients, Excipients and Specialty Chemicals in Texas USA. Our principals manufacture supply and export USP NF BP, Ph Eur, etc grades of chemicals pure and reagent grade, mineral fortifiers, FCC food grade. Tailor made particle size and customized specifications are offered. The principal's facility is having one or more of the certifications like FDA approval and GLP, cGMP, ISO9001, ISO14001, ISO/IEC 17025, ISO22000, FSSC 22000, ISO45001, FSSAI, Kosher, HALAL, COPP, WHO-GMP certified and Written Confirmation (WC) for export to Europe is available. The manufacturers suppliers and exporters observe WHO Good Manufacturing Practices and Good Laboratory Practices.
Suppliers and Manufacturers' Representative:
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Houston, TX 77040, USA
Call Toll Free: 1-855-55-AMMOL 1-855-552-6665
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