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Catalog Number:
01969
CAS Number:
877-24-7
Potassium hydrogen phthalate, acidimetric standard
Grade:
ACS reagent
Purity:
99 - 100% (Assay by titration, dry basis)
Synonym(s):
Phthalic acid potassium salt
Documents
$29.34 /100G
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Product Information

Potassium hydrogen phthalate, commonly referred to as an acidimetric standard, is a versatile compound widely utilized in analytical chemistry, particularly in acid-base titrations. This compound serves as a primary standard for the calibration of pH meters and the preparation of standard solutions, ensuring accuracy and reliability in quantitative analysis. Its high purity and stability make it an ideal choice for laboratories requiring precise measurements in various applications, including pharmaceuticals, food and beverage testing, and environmental monitoring.

With its unique properties, potassium hydrogen phthalate offers significant advantages over other acidimetric standards. It is non-hygroscopic, which minimizes the risk of moisture absorption and ensures consistent results. Additionally, its ability to form a stable solution allows for reproducible titration results, making it a preferred choice among researchers and industry professionals. Whether you are conducting routine quality control or advanced research, potassium hydrogen phthalate is essential for achieving accurate and reliable analytical results.

Synonyms
Phthalic acid potassium salt
CAS Number
877-24-7
Purity
99 - 100% (Assay by titration, dry basis)
Grade
ACS reagent
Molecular Formula
C8H5O4K
Molecular Weight
204.23
MDL Number
MFCD00013070
Melting Point
294 - 296 °C
Density
1.64
Appearance
White crystalline powder
Conditions
Store at RT
General Information
Synonyms
Phthalic acid potassium salt
CAS Number
877-24-7
Purity
99 - 100% (Assay by titration, dry basis)
Grade
ACS reagent
Molecular Formula
C8H5O4K
Molecular Weight
204.23
MDL Number
MFCD00013070
Melting Point
294 - 296 °C
Density
1.64
Appearance
White crystalline powder
Conditions
Store at RT
Properties
Additional property information coming soon!
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Safety and Regulations
Hazmat
No
Antibiotic
No
DEA-regulated
No
Warnings
-
Applications

Potassium hydrogen phthalate is widely utilized in research focused on:

  • pH Standardization: It serves as a primary standard for pH calibration in laboratories, ensuring accurate measurements in various chemical analyses.
  • Titration Applications: Commonly used in acid-base titrations, it helps determine the concentration of unknown solutions, making it essential in analytical chemistry.
  • Buffer Solutions: This compound is used to prepare buffer solutions, maintaining stable pH levels in biochemical experiments, which is crucial for enzyme activity and other reactions.
  • Quality Control: In the pharmaceutical industry, it is employed for quality control testing of drug formulations, ensuring compliance with regulatory standards.
  • Educational Purposes: Frequently used in educational settings for teaching chemistry concepts, it provides students with hands-on experience in titration and pH measurement techniques.

Citations