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09709

Sigma-Aldrich

Ammonium phosphate monobasic

BioUltra, ≥99.5% (T)

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Synonym(s):
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.25

product line

BioUltra

Quality Level

Assay

≥99.5% (T)

impurities

insoluble matter, passes filter test

pH

4.0-5.0 (25 °C, 0.1 M in H2O)

mp

190 °C (dec.) (lit.)

solubility

H2O: 0.1 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

Al: ≤5 mg/kg
As: ≤0.5 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤50 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤20 mg/kg
K: ≤50 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

λ

0.1 M in H2O

UV absorption

λ: 260 nm Amax: ≤0.059
λ: 280 nm Amax: ≤0.050

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

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This Item
1.014401.01126A3048
Ammonium phosphate monobasic BioUltra, ≥99.5% (T)

Sigma-Aldrich

09709

Ammonium phosphate monobasic

Premium Grade
impurities

insoluble matter, passes filter test

impurities

-

impurities

≤0.005% Insoluble matter

impurities

-

pH

4.0-5.0 (25 °C, 0.1 M in H2O)

pH

3.8-4.4 (20 °C, 50 g/L in H2O)

pH

3.8-4.4 (20 °C, 50 g/L in H2O)

pH

-

mp

190 °C (dec.) (lit.)

mp

190 °C

mp

190 °C

mp

190 °C (dec.) (lit.)

solubility

H2O: 0.1 M at 20 °C, clear, colorless

solubility

368 g/L

solubility

-

solubility

-

anion traces

chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤50 mg/kg

anion traces

-

anion traces

chloride (Cl-): ≤0.0005%, nitrate (NO3-): ≤0.001%, sulfate (SO42-): ≤0.005%

anion traces

-

Application

Ammonium phosphate monobasic can be used to study optimization reagents, protein structural analysis, proteomics, x-ray crystallography and biological buffers. Ammonium phosphate monobasic has been used to develop a simple high-performance liquid chromatographic method for determining N1-alkylnicotinamides, including C1C5 alkyl derivatives, in urine. Ammonium phosphate monobasic has also been used to develop a high-performance liquid chromatographic assay coupled with UV detection (254 nm) for the determination of midazolam and two of its hydroxylated metabolites in human plasma.

Other Notes

Component of culture media e.g. DEV SIMMONS Citrate agar. Acetate agar acc. to Trabulsi and Ewing

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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