CAS 7783-28-0 Diammonium hydrogenphosphate - Materials / Alfa Chemistry

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Diammonium hydrogenphosphate

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Catalog Number

ACM7783280

CAS Number

7783-28-0

Product Name

Diammonium hydrogenphosphate

Structure

Category

Electrolytes

Synonyms

SEC-AMMONIUM HYDROGEN PHOSPHATE;SEC AMMONIUM PHOSPHATE;PHOSPHORUS ICP STANDARD;ammoniummonohydrogenorthophosphate;diammonium;diammoniumacidphosphate;diammoniummonohydrogenphosphate;diammoniumorthophosphate

Description

DryPowder; Liquid; OtherSolid; PelletsLargeCrystals; PelletsLargeCrystals, OtherSolid;ODOURLESS WHITE CRYSTALS OR POWDER.

IUPAC Name

diazanium;hydrogen phosphate

Molecular Weight

132.06g/mol

Molecular Formula

(NH4)2HPO4;(NH4)3PO4;(NH4)2HPO4;H9N2O4P

Canonical SMILES

[NH4+].[NH4+].OP(=O)([O-])[O-]

InChI

InChI=1S/2H3N.H3O4P/c;;1-5(2,3)4/h2*1H3;(H3,1,2,3,4)

InChI Key

MNNHAPBLZZVQHP-UHFFFAOYSA-N

Melting Point

155 °C with decomposition

Density

1.619 g/cu cm;Relative density (water = 1): 1.6

Solubility

Insoluble in ethanol, acetone;69.5 g/100 g water at 25 °C;1 g dissolves in 1.7 mL water, 0.5 mL boiling water;Solubility in water, g/100ml at 10 °C: 57.5

Application

Diammonium hydrogenphosphate, a white crystalline or powdery inorganic phosphate, serves as a versatile compound with multiple applications. It exhibits high water solubility, with around 57 grams dissolving in 100 grams of water at 0°C, and a 1% solution displays a pH of 7.6-8.2. Primarily used in the food industry, it functions as a dough strengthener, firming agent, leavening, and pH control agent, finding applications in baked goods, alcoholic beverages, condiments, and puddings. In the context of bakery products, up to 0.25 part per 100 parts by weight of flour is typically used. Diammonium hydrogenphosphate is also significant in agriculture as a fertilizer, with technical grades typically containing 16 to 18% nitrogen and 20 to 21% phosphorus. It plays a crucial role as both a fertilizer in its own right and as an intermediate in producing complex fertilizers and bulk blends.

Color/Form

White crystals;Crystals or crystalline powder

Complexity

46.5

Covalently-Bonded Unit Count

EC Number

231-987-8

Exact Mass

132.029994g/mol

Formal Charge

Heavy Atom Count

ICSC Number

0217

MeSH Entry Terms

ammonium hydrogen phosphate;ammonium orthophosphate;ammonium phosphate;ammonium phosphate ((NH4)3PO4);ammonium phosphate, dibasic;ammonium phosphate, monobasic;ammonium phosphate, tribasic;diammonium hydrogen phosphate;diammonium phosphate;monoammonium phosphate;monobasic ammonium phosphate;phosphoric acid, ammonium salt;primary ammonum phosphate;triammonium phosphate;tribasic ammonium phosphate

Monoisotopic Mass

132.029994g/mol

Odor

Odorless;Weak ammonia odor

Other Experimental

Heat of solution: 42 Btu/lb = 23 cal/g;Decomposes into ammonia and monoammonium phosphate at about 70 °C. Unstable at room temperature and exhibits an ammonium vapor pressure in the solid form and in solution.;Gradually loses about 8% ammonia on exposure to air.

Rotatable Bond Count

Stability

Gradually loses about 8% ammonium on exposure to air

UNII

10LGE70FSU

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