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Potassium hydrogen phthalate, 99%

Product Code. 11445343
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Product Code. 11445343 Supplier Thermo Scientific Alfa Aesar Supplier No. A12895.0I
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Estimated Shipment: 21-12-2026
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Beskrivelse

CAS: 877-24-7 | C8H5KO4 | 204.222 g/mol

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.
TRUSTED_SUSTAINABILITY

Kemiske identifikatorer

CAS 877-24-7
Molecular Formula C8H5KO4
Molecular Weight (g/mol) 204.222
MDL Number MFCD00013070
InChI Key IWZKICVEHNUQTL-UHFFFAOYSA-M
Synonym potassium hydrogen phthalate, potassium biphthalate, monopotassium phthalate, potassium acid phthalate, hydrogen potassium phthalate, phthalic acid monopotassium salt, 1,2-benzenedicarboxylic acid, monopotassium salt, phthalic acid, monopotassium salt, phthalic acid potassium salt, potassium phthalate monobasic
PubChem CID 23676735
IUPAC Name potassium;2-carboxybenzoate
SMILES C1=CC=C(C(=C1)C(=O)O)C(=O)[O-].[K+]

Tekniske data

Melting Point 297°C (decomposition)
Density 1.636
Odor Odorless
Quantity 5000 g
Beilstein 3637128
Merck Index 14,7612
Solubility Information Soluble in water. Slightly soluble in alcohol.
Formula Weight 204.23
Percent Purity 99%
Chemical Name or Material Potassium hydrogen phthalate

RUO – Research Use Only

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