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Potassium Acid Phthalate

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MOQ : 50 Kilograms

Potassium Acid Phthalate Specification

Taste
Odorless, slightly acidic taste

Shape
Crystalline solid

Form
Powder, crystals

Molecular Weight
204.22 g/mol

Smell
Odorless

Density
1.636 Gram per cubic centimeter(g/cm3)

Melting Point
300C (decomposes)

Molecular Formula
C8H5KO4

Structural Formula
C6H4(CO2H)(CO2K)

Poisonous
Yes

Other Names
KHP; Potassium biphthalate

Ph Level
pH (1% solution): 4.01 at 25C

Storage
Store in a tightly closed container, in a cool and dry place

HS Code
2918 99 90

Purity
99.5%

Solubility
Freely soluble in water

Classification
Carboxylic acid salt

Chemical Name
Potassium hydrogen phthalate

Grade
ACS; Reagent Grade

Standard
Meets ACS & Reagent requirements

Usage
Used as a primary standard in acidimetry and alkalimetry

Main Material
Potassium acid phthalate

Packaging
Plastic or glass bottle

Sensitivity
Hygroscopic

Stability
Stable under recommended storage conditions

Maximum Absorbance
No significant UV absorbance

Compatibility
Incompatible with strong bases and oxidizing agents

pKa
5.4

Shelf Life
5 years if properly stored

Appearance
White crystalline powder

Potassium Acid Phthalate Trade Information

Minimum Order Quantity
50 Kilograms

Supply Ability
1 Kilograms Per Week

Delivery Time
1 Week

About Potassium Acid Phthalate

Potassium Acid Phthalate

CAS No. : 877-24-7

Other Names : Potassium hydrogen phthalate, Potassium Acid Phthalate.

Purity : 99.9% min and 99% min

Appearance : White Crystalline Powder

Application : Buffer, Analytical standard, ion-pair chromatography.

Specification :-
Assay : 99.8

Ferric(Fe) : 0.0005

Chloride(Cl): 0.001

Lead(Pb) : 0.0004

Loss on drying : 0.03

Ph value(50g/L solution,25°C) : 4.0

Packaging Details : 25-50 kg HDPE drum with poly liner.

Exceptional Stability and Purity

KHP is renowned for its chemical stability and high purity, meeting ACS and reagent grade requirements. Its resistance to decomposition under typical laboratory environments ensures reliable performance for various analytical procedures. This makes it an excellent reference material and standard for precise titrations.

Ideal for Standardization Applications

Widely used in labs as a primary standard for acidimetry and alkalimetry, potassium acid phthalate provides accurate and consistent results. Its well-defined properties and easy solubility in water streamline preparation and measurement, especially important in quality control and educational settings.

Safe and Convenient Storage

Potassium acid phthalate should be kept in a tightly closed container made of plastic or glass, away from moisture and strong chemicals. Its hygroscopic nature requires protection from humidity to maintain its integrity over a long shelf life of five years, ensuring constant reliability for frequent laboratory use.

FAQs of Potassium Acid Phthalate:

Q: How should potassium acid phthalate be stored for maximum shelf life?

A: Store potassium acid phthalate in a tightly sealed plastic or glass bottle, in a cool, dry place, away from strong bases and oxidizing agents to prevent degradation and maintain its five-year shelf life.

Q: What is the main application of potassium acid phthalate in laboratories?

A: Potassium acid phthalate is widely used as a primary standard for calibrating solutions in acidimetry and alkalimetry due to its stable, well-characterized composition and reliable pH.

Q: When is potassium acid phthalate considered unsuitable for use?

A: KHP should not be used if it shows signs of clumping, discoloration, or moisture absorption, as these may indicate compromised purity or performance, especially due to its hygroscopic nature.

Q: Where can potassium acid phthalate be sourced in India?

A: KHP is readily available from distributors, exporters, importers, manufacturers, retailers, suppliers, traders, and wholesalers across India.

Q: What benefits does potassium acid phthalate offer as a primary standard?

A: Its high purity, consistent solubility, and stable pH value allow for highly precise and reproducible standardization of acids and bases, enhancing result reliability in analytical procedures.

Q: Is potassium acid phthalate safe to handle in a laboratory environment?

A: Yes, potassium acid phthalate is considered non-poisonous, odorless, and safe to use, provided standard laboratory hygiene and safety practices are followed to avoid contact with incompatible substances.

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