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Potassium hydrogen phthalate, 99%

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

$137.63 - $1012.95

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 monobasic
PubChem CID 23676735
IUPAC Name potassium;2-carboxybenzoate
SMILES C1=CC=C(C(=C1)C(=O)O)C(=O)[O-].[K+]
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AAA1289536
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Thermo Scientific Chemicals
A1289536
500 g
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AAA128950B
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Thermo Scientific Chemicals
A128950B
1000 g
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AAA128950I
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A128950I
5000 g
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Description

Description

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.
Specifications

Chemical Identifiers

877-24-7
204.222
IWZKICVEHNUQTL-UHFFFAOYSA-M
23676735
C1=CC=C(C(=C1)C(=O)O)C(=O)[O-].[K+]
C8H5KO4
MFCD00013070
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
potassium;2-carboxybenzoate

Specifications

877-24-7
1.636
C8H5KO4
500 g
14,7612
Soluble in water. Slightly soluble in alcohol.
C1=CC=C(C(=C1)C(=O)O)C(=O)[O-].[K+]
204.222
204.23
Potassium hydrogen phthalate
297°C (decomposition)
Odorless
MFCD00013070
3637128
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
IWZKICVEHNUQTL-UHFFFAOYSA-M
potassium;2-carboxybenzoate
23676735
99%
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Safety and Handling

Safety and Handling

EINECSNumber : 212-889-4

RTECSNumber : CZ4326000

TSCA : Yes

Recommended Storage : Ambient temperatures

SDS
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RUO – Research Use Only