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Potassium hydrogen phthalate, primary standard, ACS, 99.95-100.05%, Thermo Scientific Chemicals Product Code.: 11347678
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Potassium hydrogen phthalate, primary standard, ACS, 99.95-100.05%, Thermo Scientific Chemicals

Product Code. 11347678
250 g
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Quantity:
250 g
1 kg
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Product Code. 11347678

Brand: Thermo Scientific Alfa Aesar 033351.30

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Description

As a primary standard for preparing volumetric alkali solutions and as a buffer in pH determinations. Potassium hydrogen phthalate is used as a primary standard for acid- base titrations as well as for calibrating pH meters. It acts as a 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.

TRUSTED_SUSTAINABILITY

Chemical Identifiers

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 monobasicShow MoreShow Less
PubChem CID 23676735
IUPAC Name potassium;2-carboxybenzoate
SMILES C1=CC=C(C(=C1)C(=O)O)C(=O)[O-].[K+]

Specifications

Melting Point 297°C (decomposition)
Color White
Physical Form Crystalline Powder
Quantity 250 g
Assay Percent Range 99.95-100.05%
Beilstein 3637128
Solubility Information Soluble in water. Slightly soluble in alcohol.
Formula Weight 204.23
Grade ACS Reagent
Density 1.636 g/mL
Chemical Name or Material Potassium hydrogen phthalate, primary standard, For ACS analysis
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5 results found
Lot Number Certificate Type Date Catalog Number
Lot NumberN26L011 Certificate TypeCertificate of Analysis Date28/02/2025 Catalog Number033351.A1,033351.30
Lot NumberM29L033 Certificate TypeCertificate of Analysis Date31/01/2025 Catalog Number033351.A1,033351.30
Lot NumberX28K012 Certificate TypeCertificate of Analysis Date08/11/2024 Catalog Number033351.A1,033351.30
Lot NumberQ15K013 Certificate TypeCertificate of Analysis Date11/06/2024 Catalog Number033351.A1,033351.30
Lot NumberX26J014 Certificate TypeCertificate of Analysis Date03/11/2023 Catalog Number033351.A1,033351.30

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