Skip to Content
Merck
All Photos(2)

Documents

467782

Sigma-Aldrich

Ammonium phosphate monobasic

≥99.99% trace metals basis

Synonym(s):

mono-Ammonium phosphate, prim-Ammonium phosphate, Ammonium dihydrogenphosphate

Sign Into View Organizational & Contract Pricing
All Photos(2)

About This Item

Linear Formula:
NH4H2PO4
CAS Number:
7722-76-1
Molecular Weight:
115.03
EC Number:
231-764-5
MDL number:
MFCD00003396
UNSPSC Code:
12352300
PubChem Substance ID:
329757242
NACRES:
NA.55

grade

for inorganic trace analysis

Quality Level

100

Assay

≥99.99% trace metals basis

form

solid

impurities

≤0.005% insolubles
<100 ppm total metallic impurities

pH

3.8-4.4

mp

190 °C (dec.) (lit.)

solubility

water: soluble(lit.)

anion traces

chloride (Cl-): ≤5 ppm
nitrate (NO3-): ≤0.001%
sulfate (SO42-): ≤0.01%

cation traces

Ca: 0.001%
Fe: ≤0.001%
K: ≤0.005%
Mg: 0.0005%
Na: ≤0.005%
heavy metals: ≤5 ppm

SMILES string

N.OP(O)(O)=O

InChI

1S/H3N.H3O4P/c;1-5(2,3)4/h1H3;(H3,1,2,3,4)

InChI key

LFVGISIMTYGQHF-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

General description

Ammonium phosphate monobasic (APM) is an inorganic salt widely used in fertilizer, baking powder and yeast production. It is also employed as an agent to control pH of a solution, in corrosion inhibition. APM can be prepared by reacting phosphoric acid with anhydrous ammonia maintaining the pH below 5.8. The change in some of the physical characteristics on its addition to a high carbonate containing unfired and fired illitic shale has been studied.

Application

Employed in the synthesis of the first example of a mixed-valence ammonium iron phosphate, NH4Fe2(PO4)2.

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Customers Also Viewed

Slide 1 of 5

1 of 5

Ammonium phosphate dibasic &#8805;99.99% trace metals basis

Sigma-Aldrich

379980

Ammonium phosphate dibasic

Ammonium dihydrogen phosphate cryst. extra pure

SAFC

1.01124

Ammonium dihydrogen phosphate

Ammonium phosphate dibasic suitable for HPLC, LiChropur&#8482;, 99.0-101.0% (T)

Supelco

79762

Ammonium phosphate dibasic

Ammonium dihydrogen phosphate NIST&#174; SRM&#174; 194a

NIST194A

Ammonium dihydrogen phosphate

Cesium nitrate 99.999% trace metals basis

Sigma-Aldrich

203041

Cesium nitrate

Analysis of Antiretrovirals Used in Combination HIV Therapy.
McKenzie JAM, et al.
The Reporter, 18, 3-4 (2005)
Effect of medium components and metabolic inhibitors on β-galactosidase production and secretion by Penicillium notatum 1.
Fiedurek J, et al.
Journal of Basic Microbiology, 36(1), 27-32 (1996)
Development of an inhibitor screening platform via mass spectrometry.
Rathore R, et al.
Journal of Biomolecular Screening, 13(10), 1007-1013 (2008)
Study of metastable equilibria in the ternary system NH4H 2PO4-(NH4)2HPO4-H2O at -7 and -9 ?C.
Zerrouk L, et al.
Fluid Phase Equilibria, 354, 47-53 (2013)
Burdock GA.
Encyclopedia of Food and Color Additives, 1, 142-142 (1997)
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service