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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:
Molecular Weight:
254.19
Beilstein/REAXYS Number:
3854419
MDL number:
UNSPSC Code:
41116107
PubChem Substance ID:
NACRES:
NA.24

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grade

certified reference material

Quality Level

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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1 of 4

This Item
1.01961NIST188NIST185I
manufacturer/tradename

NIST®

manufacturer/tradename

-

manufacturer/tradename

NIST®

manufacturer/tradename

NIST®

grade

certified reference material

grade

certified reference material

grade

certified reference material

grade

certified reference material

form

crystals

form

-

form

powder

form

crystals

application(s)

general analytical

application(s)

environmental
food and beverages
general analytical
industrial qc
pharmaceutical

application(s)

general analytical

application(s)

-

packaging

pkg of 65 g

packaging

-

packaging

pkg of 60 g

packaging

pkg of 60 g

Quality Level

100

Quality Level

300

Quality Level

100

Quality Level

100

General description

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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Warning

Hazard Classifications

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

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1


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’.

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