Product Name
Diammonium hydrogenphosphate
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
Color/Form
White crystals;Crystals or crystalline powder
Covalently-Bonded Unit Count
3
Exact Mass
132.029994g/mol
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.
Stability
Gradually loses about 8% ammonium on exposure to air