Secondary names

diazanium;hydrogen phosphate; Ammonium phosphate, dibasic; Dibasic ammonium phosphate; Phosphoric acid, diammonium salt; Diammonium orthophosphate; (NH4)2HPO4; (NH4)2HPO42-gamma; H9N2O4P

CAS number

7783-28-0

6.0

	Formula	Name	Family	Number min-max	Mole fraction	Isotope mole fraction	State	Relevance
	$NH_4^+$	Ammonium ion	molecule	2	0.6666666666666666	1	constituent cation	main
	$HPO_4^{2-}$	Hydrogen phosphate ion	molecule	1	0.3333333333333333	1	constituent anion	main

Chemical functions

	Function	Number
	$H_4 >\mid N^+$	2

Chemical bonds

	Bond	Number
	$>\mid N^+ \cdot O^{-}-$	1
	$-O \dots H-$	2
	$\geq N^+-H$	4
	$P=O$	1
	$=P-O^-$	2
	$=P-O-$	1
	$-O-H$	1

Class

acid salts (05)

Type

simple acid salts (05.01)

Group

phosphate (05.01.07)

Phase name

Diammonium hydrogen phosphate-gamma

Phase type

crystalline

Comments

fully ordered phase

Pure color

colorless

Color

colorless, white

Diaphaneity

transparent to translucent

Links

• PubChem: Ammonium Phosphate, Dibasic