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  7. Potassium hydrogen phthalate, primary standard, ACS, 99.95-100.05%, Thermo Scientific Chemicals

Potassium hydrogen phthalate, primary standard, ACS, 99.95-100.05%, Thermo Scientific Chemicals

Catalog Number p-4407742
Click to view available options
Quantity:
250 g
1 kg
877-24-7
C8H5KO4
204.222
MFCD00013070
IWZKICVEHNUQTL-UHFFFAOYSA-M
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
23676735
potassium;2-carboxybenzoate
C1=CC=C(C(=C1)C(=O)O)C(=O)[O-].[K+]
877-24-7
C8H5KO4
204.222
MFCD00013070
IWZKICVEHNUQTL-UHFFFAOYSA-M
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
23676735
potassium;2-carboxybenzoate
C1=CC=C(C(=C1)C(=O)O)C(=O)[O-].[K+]

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
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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Safety and Handling

EINECSNumber 212-889-4
RTECSNumber CZ4326000
TSCA Yes
Recommended Storage Ambient temperatures
SDS

RUO – Research Use Only

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