Skip to Content
Merck
All Photos(1)

Key Documents

60495

Sigma-Aldrich

Potassium phosphate tribasic monohydrate

purum p.a., ≥94% (T)

Synonym(s):

tert-Potassium phosphate monohydrate, Tripotassium phosphate

Sign Into View Organizational & Contract Pricing

Select a Size


Select a Size

Change View

About This Item

Empirical Formula (Hill Notation):
K3O4P · H2O
CAS Number:
Molecular Weight:
230.28
EC Number:
MDL number:
UNSPSC Code:
12352200
PubChem Substance ID:

grade

purum p.a.

Assay

≥94% (T)

loss

≤13% loss on ignition, 800 °C

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤200 mg/kg

cation traces

Ca: ≤50 mg/kg
Cd: ≤50 mg/kg
Co: ≤50 mg/kg
Cu: ≤50 mg/kg
Fe: ≤50 mg/kg
Na: ≤1000 mg/kg
Ni: ≤50 mg/kg
Pb: ≤50 mg/kg
Zn: ≤50 mg/kg

SMILES string

O.[K+].[K+].[K+].[O-]P([O-])([O-])=O

InChI

1S/3K.H3O4P.H2O/c;;;1-5(2,3)4;/h;;;(H3,1,2,3,4);1H2/q3*+1;;/p-3

InChI key

RMNIZOOYFMNEJJ-UHFFFAOYSA-K

Looking for similar products? Visit Product Comparison Guide


Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

It looks like we've run into a problem, but you can still download Certificates of Analysis from our Documents section.

If you need assistance, please contact Customer Support.

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