NAVIGATION


Ammonium dihydrogen orthophosphate

Catalog NumberACM7722761

CAS Number7722-76-1

CategoryElectrolytes

Ammonium dihydrogen orthophosphate
Description
DryPowder; DryPowder, PelletsLargeCrystals; Liquid; OtherSolid; PelletsLargeCrystals; PelletsLargeCrystals, OtherSolid
IUPAC Name
azanium;dihydrogen phosphate
Molecular Weight
115.03g/mol
Molecular Formula
NH4H2PO4;H6NO4P
Canonical SMILES
[NH4+].OP(=O)(O)[O-]
InChI
InChI=1S/H3N.H3O4P/c;1-5(2,3)4/h1H3;(H3,1,2,3,4)
InChI Key
LFVGISIMTYGQHF-UHFFFAOYSA-N
Melting Point
190 °C
Density
1.80 g/cu cm
Solubility
Slightly soluble in ethanol; insoluble in acetone;40.4 g/100 g water at 25 °C;1 g dissolves in about 2.5 mL water; slightly soluble in alcohol; practically insoluble in acetone
Application
Ammonium dihydrogen orthophosphate serves multiple important purposes across various industries due to its specialized chemical properties. It is commonly used as a versatile food additive, functioning as a dough strengthener and leavening agent in baking, as well as a firming and pH control agent in condiments and puddings. Additionally, its efficacy as a fertilizer is notable, providing both nitrogen and phosphorus for plant growth through its high solubility and fast action in soil. The compound's excellent physical properties make it suitable for integration into compound fertilizers. Beyond its agricultural and food industry applications, ammonium dihydrogen orthophosphate is also relevant in technological fields, where its piezoelectric qualities have been harnessed for sonar transducers and other electronic applications, demonstrating its adaptability and broad range of uses.
Color/Form
White, tetrahedral crystals;Brilliant white crystals or powder
Complexity
49.8
Covalently-Bonded Unit Count
2
EC Number
231-764-5
Exact Mass
115.003445g/mol
Formal Charge
0
Heavy Atom Count
6
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
115.003445g/mol
Odor
Odorless;Faint acid
Other Experimental
Mildly acid in reaction;HEAT OF SOLN: 42 BTU/LB= 23 CAL/G= 0.97X10+5 JOULES/KG;The crystals have piezoelecric properties; very stable (7 Pa at 125 °C);Decomposes at high temperature, affording ammonia and polyphosphoric acid
Refractive Index
Index of refraction: 1.525; 1.479, both at 589 nm
Rotatable Bond Count
0
Stability
Stable in air
UNII
09254QB17T
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