MilliporeSigma
All Photos(4)

216003

Sigma-Aldrich

Ammonium phosphate monobasic

ACS reagent, ≥98%

Sign Into View Organizational & Contract Pricing

Select a Size

Synonym(s):
APM, mono-Ammonium phosphate, prim-Ammonium phosphate, Ammonium dihydrogenphosphate
Linear Formula:
NH4H2PO4
CAS Number:
Molecular Weight:
115.03
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

grade

ACS reagent

vapor pressure

<0.001 hPa ( 20 °C)

Assay

≥98%

form

crystals or chunks

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

Related Categories

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
795461A304888431
Ammonium phosphate monobasic ACS reagent, &#8805;98%

Sigma-Aldrich

216003

Ammonium phosphate monobasic

Essential Grade
Ammonium phosphate monobasic analytical standard, for nitrogen determination according to Kjeldahl method, &#8805;99.5%

Supelco

88431

Ammonium phosphate monobasic

-
vapor pressure

<0.001 hPa ( 20 °C)

vapor pressure

<0 hPa ( 20 °C)

vapor pressure

-

vapor pressure

-

assay

≥98%

assay

≥98%

assay

-

assay

≥99.5% (T)

form

crystals or chunks

form

powder

form

powder

form

-

impurities

≤0.005% NH4OH pptd., ≤0.005% insolubles

impurities

≤0.005% NH4OH pptd., ≤0.005% insolubles

impurities

-

impurities

12.18%±0.10% total Kjeldahl nitrogen

pH

3.8-4.4 (25 °C, 5%)

pH

3.8-4.4 (25 °C, 5%)

pH

-

pH

3.8-4.4 (25 °C, 50 mg/mL in H2O)

Application

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

Legal Information

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

Storage Class Code

13 - Non Combustible Solids

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?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Customers Also Viewed

Slide 1 of 4

1 of 4

Milne GWA.
Gardner's Commercially Important Chemicals: Synonyms, Trade Names, and Properties, 193-193 (2005)
Burdock GA.
Encyclopedia of Food and Color Additives, 142-142 (1997)
Boudin, S. Lii, K-H.
Inorganic Chemistry, 37, 799-799 (1998)
Nathan K Deed et al.
Applied microbiology and biotechnology, 89(5), 1537-1549 (2011-01-20)
Two deletion mutants expected to be defective in nitrogen catabolite repression (NCR) were constructed in a commercial wine yeast background M2: a ure2 mutant and a dal80 gzf3 double mutant. Wild-type and both mutant strains were fermented in Sauvignon Blanc
Catarina Barbosa et al.
International journal of food microbiology, 160(2), 87-93 (2012-11-28)
Sulphur-containing amino acids, cysteine and methionine, are generally found in very low concentrations in grape-juice. The objective of this study was to identify the effects of methionine on aroma compounds formation. Nitrogen source effects on growth, fermentative behaviour and aroma

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