NIST2185

Potassium hydrogen phthalate

NIST^® SRM^® 2185, pD standard

• Synonym(s): Potassium phthalate monobasic, KHP, Phthalic acid monopotassium salt, Potassium biphthalate, Potassium hydrogen phthalate
• Linear Formula: HOOCC₆H₄COOK
• CAS Number: 877-24-7
• Molecular Weight: 204.22
• Beilstein: 3637128
• EC Number: 212-889-4
• MDL number: MFCD00013070
• UNSPSC Code: 41116107
• PubChem Substance ID: 329818733
• NACRES: NA.24

Properties

• grade: certified reference material
• Quality Level: 100
• Agency: suitable for SM 2310; suitable for SM 2320
• form: crystals
• packaging: pkg of 60 g
• manufacturer/tradename: NIST^®
• mp: 295-300 °C (dec.) (lit.)
• application(s): pharmaceutical (small molecule)
• SMILES string: [K+].OC(=O)c1ccccc1C([O-])=O
• InChI: 1S/C8H6O4.K/c9-7(10)5-3-1-2-4-6(5)8(11)12;/h1-4H,(H,9,10)(H,11,12);/q;+1/p-1
• InChI key: IWZKICVEHNUQTL-UHFFFAOYSA-M

Description

General description

SRM 2185_cert

SRM 2185_SDS

Other Notes

Certified for the analytes listed below.
Potassium Hydrogen Phthalate

See certificate for values and more details at nist.gov/SRM.

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

• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 3
• Flash Point(F): 387.1 °F - Pensky-Martens closed cup
• Flash Point(C): 197.3 °C - Pensky-Martens closed cup