Diammonium phosphate food ingredient DAP
Basic Info
Model No.: Food grade
Product Description
Ammonium Phosphate, Dibasic
Other name : Diammonium Hydrogen Phosphate; Diammonium Phosphate
Molecular Formula : (NH4)2HPO4
Molecular Weight : 132.06
INS: 342(ii)
CAS: [7783-28-0]
DESCRIPTION
Ammonium Phosphate, Dibasic, occurs as white crystals, a crystalline powder, or granules. It is freely soluble in water.
The pH of a 1:100 aqueous solution is between 7.6 and 8.2.
Function: Buffer; dough conditioner; leavening agent; yeast food.
REQUIREMENTS
Identification A 1:20 aqueous solution gives positive tests for Ammonium and for Phosphate, Appendix IIIA.
Assay Not less than 96.0% and not more than 102.0% of (NH4)2HPO4.
Arsenic Not more than 3 mg.
Fluoride Not more than 10 mg.
Lead Not more than 4 mg.
TESTS
Assay Dissolve about 600 mg of sample, accurately weighed, in 40 mL of water, and titrate to a pH of 4.6 with 0.1 N sulfuric acid. Each milliliter of 0.1 N sulfuric acid is equivalent to 13.21 mg of (NH4)2HPO4.
Arsenic Determine as directed under Arsenic Limit Test, Appendix IIIB, using a solution of 1 g of sample in 35 mL of water.
Fluoride Determine as directed in Method IV under Fluoride Limit Test, Appendix IIIB, using a 2-g sample, Buffer Solution A, and 0.1 mL of Fluoride Standard Solution.
Lead Determine as directed in the APDC Extraction Method under Lead Limit Test, Appendix IIIB.
Packaging and Storage Store in tightly closed containers.
Product Categories : Phosphate > Ammonium Phosphate