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Organic Chemicals

Potassium Hydrogen Phthalate AR

RA002137 CAS 877-24-7 AR

Identity

Product code
RA002137
CAS number
877-24-7
Grade
AR
Purity
99.5%
Molecular formula
C8H5KO4
Molecular weight
204.22

Classification

Technical Data

Properties

PropertyValueUnit
Physical state at 20 °C Solid —
Colour White crystalline —
Odour Odorless —
Melting point/ Freezing point [°C] 295 - 300 °C °C
Density [g/cm3] 1.64 g/cm3 g/cm3
Solubility in water [% weight] 80 g/L g/L

These are recorded catalogue property values. Product specification limits, where available, are listed under Specifications.

Specifications

ParameterSpecificationUnit
Appearance White crystalline powder —
Lead (Pb) Max 0.0005 % %
Sodium (Na) Max 0.01 % %
Assay Min 99.5 % %
Insoluble matter Max 0.005 % %
Loss on drying (110 °C) Max 0.2 % %
Chloride (Cl) Max 0.002 % %
Phthalic acid Max 0.005 % %
Sulphate (SO4) Max 0.005 % %
Copper (Cu) Max 0.0005 % %
Iron (Fe) Max 0.0005 % %

2 grades of this substance are listed. Each grade is a separate product with its own specifications, pack sizes and documents.

Packaging

Pack size SKU
500 g RA002137-PK-500G