NIST189C

Potassium tetraoxalate dihydrate

NIST^® SRM^® 189c, pH standard

• Synonym(s): Oxalic acid hemipotassium salt
• Linear Formula: KH₃(C₂O₄)₂ · 2H₂O
• CAS Number: 6100-20-5
• Molecular Weight: 254.19
• Beilstein: 3854419
• MDL number: MFCD00150443
• UNSPSC Code: 41116107
• PubChem Substance ID: 329818722
• NACRES: NA.24

Properties

• 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

Description

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

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H302 + H312,H319
• Precautionary Statements: P264 - P280 - P301 + P312 - P302 + P352 + P312 - P305 + P351 + P338 - P337 + P313
• Hazard Classifications: Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Irrit. 2
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1