Skip to Content
Merck
All Photos(1)

Key Documents

71504-MM

Sigma-Aldrich

Sodium phosphate monobasic monohydrate

puriss. p.a., ACS reagent, ≥99.0% (T)

Synonym(s):

Monosodium phosphate, Sodium dihydrogen phosphate monohydrate

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
NaH2PO4 · H2O
CAS Number:
Molecular Weight:
137.99
EC Number:
MDL number:
UNSPSC Code:
12352300
PubChem Substance ID:
NACRES:
NA.21

grade

ACS reagent
puriss. p.a.

Assay

≥99.0% (T)

impurities

≤0.01% insoluble matter
≤10 mg/kg total nitrogen (N)

pH

4.1-4.5 (25 °C, 50 mg/mL in H2O)

anion traces

chloride (Cl-): ≤5 mg/kg
sulfate (SO42-): ≤30 mg/kg

cation traces

As: ≤0.00005%
Ca: ≤0.001%
Cd: ≤0.0005%
Co: ≤0.0005%
Cr: ≤0.0005%
Cu: ≤0.0005%
Fe: ≤0.0005%
K: ≤0.005%
Mg: ≤0.0005%
Mn: ≤0.0005%
Ni: ≤0.0005%
Pb: ≤0.0005%
Zn: ≤0.0005%
heavy metals: ≤10 mg/kg (by ICP-OES)

storage temp.

10-30°C

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

Looking for similar products? Visit Product Comparison Guide

General description

Sodium phosphate monobasic monohydrate is a sodium salt.

Application

Sodium phosphate monobasic monohydrate may be used in the following studies:
  • As a mobile phase in HPLC studies.
  • For the dissolution of BSA (Bovine serum albumin).
  • Preparation of buffer solutions.

Warning

Toxicity: Standard Handling (A)

Storage Class Code

10-13 - German Storage Class 10 to 13

WGK

WGK 3

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?

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

Visit the Document Library

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