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We can only ship non-hazardous products to Rest of World
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We can only ship to Northern Ireland where a Royal Mail postal option has been chosen at checkout.
We can only ship to the following postcodes where a Royal Mail postal option has been chosen at checkout.
AB, DD, DG3, DG4, DG6 - DG9, EH, FK, G, HS, IM, IV, KA, KW, KY, ML, PA, PH, PO30 - PO41, TD, TR21 - TR25, ZE
What is Potassium Hydrogen Phthalate? It is a chemical compound with the formula C₈H₅KO₄. It is a white, crystalline, and ionic solid, and is commonly used as a primary standard in acid-base titrations, for calibrating pH meters, and in the preparation of volumetric alkali solutions. KHP is also used as a buffer in pH determination and as a standard for total organic carbon testing.
Consistent Quality: We provide only high-quality Potassium Hydrogen Phthalate, ensuring reliable and consistent performance for all applications.
Shipped from Manchester, UK Facility: Sourced and packaged in non-toxic, chemical-resistant containers to ensure safe handling and preserve product quality during transport.
Acid-Base Titrations
It serves as a stable, non-hygroscopic, and readily available acid for titrating strong bases like sodium hydroxide.
Instrument Calibration
KHP solutions are used to standardise pH meters and solutions, ensuring accurate pH measurements.
Buffers
Can be used to create buffer solutions in a specific pH range.
Minimum Assay: <99.5%
Molecular Formula: C8H5KO4
Molecular Weight: 204.22
Solubility in water (% weight): 80 g/L @ 20 C
Melting Point: 295-300 C
Density (g/cm3): 1.64
Insoluble matter: 0.003%
Loss on drying at 110 C: 0.2%
Chloride (Cl): 0.0015%
Phthalic acid: <0.005%
Sulphate (SO4): 0.003%
Copper (Cu): <0.0004%
Iron (Fe): <0.0005%
Sodium (Na): <0.0099%
Hazard Phrases: Not considered harmful under normal laboratory conditions
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