Skip to Content
Merck
All Photos(1)

Key Documents

View All Documentation

24-5700

Sigma-Aldrich

Potassium tetraoxalate dihydrate

≥99.8%

Synonym(s):

Oxalic acid hemipotassium salt

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Linear Formula:
KH3(C2O4)2 · 2H2O
CAS Number:
6100-20-5
Molecular Weight:
254.19
Beilstein:
3854419
EC Number:
204-874-6
MDL number:
MFCD00150443
UNSPSC Code:
12352300
PubChem Substance ID:
329752710
grade:
SAJ special grade
form:
crystalline

grade

SAJ special grade

Assay

≥99.8%

form

crystalline

availability

available only in Japan

pH

1.0-2.5 (25 °C, 25.4 g/L)

SMILES string

O.O.[K+].OC(=O)C(O)=O.OC(=O)C([O-])=O

InChI

1S/2C2H2O4.K.2H2O/c2*3-1(4)2(5)6;;;/h2*(H,3,4)(H,5,6);;2*1H2/q;;+1;;/p-1

InChI key

KPFHSTZUXXJAES-UHFFFAOYSA-M

Looking for similar products? Visit Product Comparison Guide

Suitability

pH standard solution

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302 + H312,H319

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
U1345
U7943
U7543
U2242
U9661

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

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