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Potassium tetraoxalate dihydrate

SIAL/NIST189C - NIST® SRM® 189c, pH standard

Synonym: Oxalic acid hemipotassium salt

CAS Number: 6100-20-5
Empirical Formula (Hill Notation): C4H3KO8 · 2H2O
Molecular Weight: 254.19
MDL Number: MFCD00150443
Linear Formula: KH3(C2O4)2 · 2H2O
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-NIST189C 65 g
 $1330.00
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application(s) general analytical
form crystals
grade certified reference material
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
manufacturer/tradename NIST®
packaging pkg of 65 g
Quality Level 100 
SMILES string O.O.[K+].OC(=O)C(O)=O.OC(=O)C([O-])=O
General description: SRM 189C_cert 

SRM 189C_SDS 
Legal Information: NIST is a registered trademark of National Institute of Standards and Technology
Legal Information: SRM is a registered trademark of National Institute of Standards and Technology
Other Notes: Please download a current certificate at nist.gov/SRM for current analytes and certified values.
UNSPSC 41116107

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