Skip to Content
Merck
All Photos(4)

Key Documents

795461

Sigma-Aldrich

Ammonium phosphate monobasic

anhydrous, free-flowing, Redi-Dri, ACS reagent, ≥98%

Synonym(s):

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

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
NH4H2PO4
CAS Number:
Molecular Weight:
115.03
EC Number:
MDL number:
UNSPSC Code:
12352300
PubChem Substance ID:
NACRES:
NA.21

grade

ACS reagent
anhydrous

Quality Level

vapor pressure

<0 hPa ( 20 °C)

product line

Redi-Dri

Assay

≥98%

form

powder

quality

free-flowing

impurities

≤0.005% NH4OH pptd.
≤0.005% insolubles

pH

3.8-4.4 (25 °C, 5%)

mp

190 °C (dec.) (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: 0.005%
Na: ≤0.005%
heavy metals (as Pb): ≤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

General description

Ammonium dihydrogen phosphate (ADP) is a crystal material and is a member of large family of compounds which possess a chemical formula:MH2XO4 .

Application


  • Capillary-seeding crystallization and preliminary crystallographic analysis of a solvent-tolerant elastase from Pseudomonas aeruginosa strain K.: This research employs ammonium phosphate monobasic in the crystallization process of elastase from Pseudomonas aeruginosa. The study provides crucial structural data that can aid in understanding the enzyme′s function and its potential industrial applications (Ali et al., 2013).



Biochem/physiol Actions

Ammonium dihydrogenphosphate (ADP) exhibits non-linear optical (NLO) and electro-optic (EO) properties.

Legal Information

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Already Own This Product?

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

Visit the Document Library

Effect of hydrogen bonds on physical properties of ammonium dihydrogenphosphate crystals
Xue D and Ratajczak H
Journal of Molecular Structure: THEOCHEM, 716(1-3), 207-210 (2005)

Articles

Redi-Dri™ prevents hygroscopic powders, such as inorganic salts, from absorbing moisture and forming clumps, leaving the salts free-flowing every time.

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