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S9638

Sigma-Aldrich

Sodium phosphate monobasic monohydrate

ACS reagent, ≥98%

Synonym(s):
Sodium dihydrogen phosphate monohydrate, Monosodium phosphate
Linear Formula:
NaH2PO4 · H2O
CAS Number:
Molecular Weight:
137.99
EC Number:
MDL number:
PubChem Substance ID:

Quality Level

grade

ACS reagent

assay

≥98%
98.0-102.0%

form

crystalline

impurities

≤0.01% Insoluble matter

pH

4.1-4.5 (25 °C, 5% in solution)

anion traces

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

cation traces

Ca: ≤0.005%
Fe: ≤0.001%
K: ≤0.01%
heavy metals: ≤0.001% (by ICP-OES)

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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Application

Sodium phosphate monobasic monohydrate has been used for the preparation of modified Tyrode′s calcium-free buffer, citrate-albumin buffer, lysis buffer for Sf9 cells and phosphate buffer.

Packaging

25, 250, 500 g in poly bottle
1, 6×1, 3 kg in poly bottle

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

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Certificate of Origin

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