Potassium hydrogen phthalate, 99%, Thermo Scientific Chemicals

Name: Potassium hydrogen phthalate, 99%, Thermo Scientific Chemicals
SKU: ALFA12895.0B

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Catalog number ALFA12895.0B

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Chemical Identifiers

CAS92-66-0

IUPAC Name4-bromo-1,1'-biphenyl

Molecular FormulaC12H9Br

InChI KeyPKJBWOWQJHHAHG-UHFFFAOYSA-N

SMILESBrC1=CC=C(C=C1)C1=CC=CC=C1

Specifications

Specification Sheet

Infrared spectrumConforms

Appearance (Color)White to light yellow

Melting point87°C to 93°C

GC>=98.0 %

Appearance (Form)Crystalline powder or flakes

Potassium hydrogen phthalate is used as a primary standard for acid- base titrations as well as for calibrating pH meters and for the preparation of volumetric alkali solutions. It acts as buffer in pH determination. It finds application as a useful standard for total organic carbon testing.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Potassium hydrogen phthalate is used as a primary standard for acid- base titrations as well as for calibrating pH meters and for the preparation of volumetric alkali solutions. It acts as buffer in pH determination. It finds application as a useful standard for total organic carbon testing.

Solubility
Soluble in water. Slightly soluble in alcohol.

Notes
Incompatible with strong oxidizing agents.

RUO – Research Use Only

General References:

Kahr, B.; Bullard, T.; Kurimoto, M.; Yoreo, J. J. Complex organic guests in simple crystals: potassium hydrogen phthalate as case study. Cryst. Res. Technol. 2013, 48 (10), 849-863.
Sudhahar, S.; Kumar, M. K.; Jayaramakrishnan, V.; Muralidharan, R.; Kumar, R. M. Effect of Sm⁺ Rare Earth Ion on the Structural, Thermal, Mechanical and Optical Properties of Potassium Hydrogen Phthalate Single Crystals. J. Mater. Sci. Technol. 2014, 30 (1), 13-18.