Potassium Hydrogen Phthalate

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MOQ : 50 Kilograms

Potassium Hydrogen Phthalate Specification

HS Code
2918.99.00

Form
Solid

Structural Formula
C6H4(CO2K)(CO2H)

Shape
Crystalline powder

Smell
Odorless

Molecular Weight
204.22 g/mol

Molecular Formula
C8H5KO4

Ph Level
pKa1 = 2.95

Melting Point
295C (decomposes)

Density
1.636 Gram per cubic centimeter(g/cm3)

Solubility
Soluble in water, slightly soluble in alcohol

Other Names
KHP, Potassium Acid Phthalate, Monopotassium Phthalate

Taste
Odorless, slightly acidic taste

Classification
Inorganic Salt, Acid Salt

Chemical Name
Potassium Hydrogen Phthalate

Standard
Complies with ACS, ISO

Usage
Laboratory reagent, calibration of pH meters

Main Material
Potassium Hydrogen Phthalate (KHP)

Potassium Hydrogen Phthalate Trade Information

Minimum Order Quantity
50 Kilograms

Supply Ability
1 Kilograms Per Month

Delivery Time
1 Week

About Potassium Hydrogen Phthalate

Potassium Hydrogen phthalate

Cas no. : 877-24-7

Molecular Formula : C8H5 KO4

M.W. : 204.23

Descripation :

Potassium hydrogen phthalate is also called KHP. It is a white, colorless, ionic solid; monopotassium salt of phthalic acid.

Description White compound Solubility 10%aq. Solution is clear colorless
Assay min.99%
Chloride (Cl) max.0.005%
Sulphate (SO4) max.0.01%
Iron (Fe) max.0.0005%
Heavy Metals (Pb) max.0.0005%

Quality and Purity for Precision Applications

KHP is renowned for its exceptional purity, featuring minimal moisture and trace metals. These qualities make it a preferred choice in laboratories, especially for sensitive analytical processes requiring reproducible results. Strict adherence to ACS and ISO standards ensures each batch maintains consistent quality, ideal for calibration tasks.

Versatile Applications in Laboratory Settings

Potassium Hydrogen Phthalate is primarily utilized in laboratories to calibrate pH meters and for other analytical purposes. Its solubility in water and well-defined pH in solutions assures accuracy in measurements. The products reliable performance supports a range of scientific activities where precise pH control is essential.

Packaging and Storage Information

Supplied in 25 kg drums, with custom packaging options available, KHPs shelf life extends up to five years if kept under recommended conditions. Proper storage ensures the substance remains stable and uncontaminated, preserving its effectiveness for long-term laboratory use.

FAQs of Potassium Hydrogen Phthalate:

Q: How is Potassium Hydrogen Phthalate typically used in laboratories?

A: Potassium Hydrogen Phthalate (KHP) is mainly used as a primary standard for calibrating pH meters and in titrations due to its stable and well-characterized acidic properties. Its purity ensures reliable analytical results.

Q: What is the recommended storage process for KHP to maintain its shelf life?

A: KHP should be stored in tightly sealed containers in a cool, dry place, away from direct sunlight and moisture. Proper storage maintains its stability and extends its shelf life to five years.

Q: Where is Potassium Hydrogen Phthalate manufactured and distributed?

A: KHP is manufactured, distributed, exported, and imported in India, and is commonly available through suppliers, traders, and wholesalers who comply with ACS and ISO standards.

Q: What are the benefits of using KHP as a calibration standard?

A: The main benefit is its high purity and stability, ensuring accurate and reproducible results during pH meter calibration. Its consistent composition allows for standardized laboratory operations.

Q: When should KHP be replaced or discarded?

A: KHP should be replaced if it shows any signs of discoloration, contamination, or has exceeded its five-year shelf life, as these changes may compromise its effectiveness or purity.

Q: What forms and packaging does KHP come in?

A: KHP is supplied as a white crystalline solid in 25 kg drums, and custom packaging can be arranged to meet specific laboratory needs.

Q: Is Potassium Hydrogen Phthalate hazardous for regular laboratory use?

A: Under normal usage conditions, KHP is considered non-hazardous. It is odorless, has a slightly acidic taste, and poses minimal risk when handled with standard laboratory precautions.

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