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223522

Sigma-Aldrich

Sodium phosphate monobasic monohydrate

≥98%, ACS reagent

Synonym(s):

Monosodium phosphate, Sodium dihydrogen phosphate monohydrate

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About This Item

Linear Formula:
NaH2PO4 · H2O
CAS Number:
Molecular Weight:
137.99
EC Number:
MDL number:
UNSPSC Code:
12161700

grade

ACS reagent

Assay

≥98%
98.0-102.0%

impurities

≤0.01% Ca ppt.
≤0.01% NH4OH pptd.
≤0.01% insolubles pptd.

pH

4.1-4.5

anion traces

chloride (Cl-): ≤5 ppm
sulfate (SO42-): ≤0.003%

cation traces

Fe: ≤0.001%
heavy metals: ≤0.001%

SMILES string

[Na+].[H]O[H].OP(O)([O-])=O

InChI

1S/Na.H3O4P.H2O/c;1-5(2,3)4;/h;(H3,1,2,3,4);1H2/q+1;;/p-1

InChI key

BBMHARZCALWXSL-UHFFFAOYSA-M

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Packaging

Packaged in poly bottles

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