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NIST189C

Potassium tetraoxalate dihydrate

NIST® SRM® 189c, pH standard

Synonym(s):

Oxalic acid hemipotassium salt

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About This Item

Linear Formula:
KH3(C2O4)2 · 2H2O
CAS Number:
6100-20-5
Molecular Weight:
254.19
Beilstein/REAXYS Number:
3854419
MDL number:
MFCD00150443
UNSPSC Code:
41116107
PubChem Substance ID:
329818722
NACRES:
NA.24

grade

certified reference material

Quality Level

100

form

crystals

packaging

pkg of 65 g

manufacturer/tradename

NIST®

application(s)

general analytical

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

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Related Categories

General description

SRM 189C_cert

SRM 189C_SDS

Other Notes

Please download a current certificate at nist.gov/SRM for current analytes and certified values.

Legal Information

NIST is a registered trademark of National Institute of Standards and Technology
SRM is a registered trademark of National Institute of Standards and Technology

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Description
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pictograms

Exclamation mark
GHS07

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Warning

Hazard Classifications

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

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

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