CAS 877-24-7

Potassium hydrogen phthalate

Description:

Potassium hydrogen phthalate (KHP), with the CAS number 877-24-7, is a white, crystalline solid that is commonly used as a primary standard in acid-base titrations due to its stability and non-hygroscopic nature. It is the potassium salt of phthalic acid and has the chemical formula KHC8H4O4. KHP is soluble in water, making it suitable for preparing standard solutions, and it has a relatively high melting point. The substance is often utilized in analytical chemistry for calibrating pH meters and determining the concentration of bases. KHP exhibits acidic properties, as it can donate a proton (H+) in solution, which is essential for its role in titrations. Additionally, it is non-toxic and environmentally friendly, making it a preferred choice in laboratory settings. Its molecular structure includes a phthalate group, which contributes to its chemical behavior and interactions. Overall, potassium hydrogen phthalate is a valuable reagent in quantitative analysis and educational laboratories.

Formula: C₈H₆O₄·K

InChI: InChI=1S/C8H6O4.K/c9-7(10)5-3-1-2-4-6(5)8(11)12;/h1-4H,(H,9,10)(H,11,12);

InChI key: InChIKey=XCCFSZODNJHPEF-UHFFFAOYSA-N

SMILES: C(O)(=O)C1=C(C(O)=O)C=CC=C1.[K]

Synonyms:

• 1,2-Benzenedicarboxylic acid, potassium salt (1:1)
• Hidrogenoftalato De Potasio
• Hydrogen potassium phthalate
• Hydrogenophtalate de potassium
• KAP
• Kaliumhydrogenphthalat
• Monopotassium 1,2-benzenedicarboxylate
• Monopotassium phthalate
• Phthalate, Potassium Hydrogen
• Phthalic Acid Monopotassium Salt
• Potassium Acid Phthalate
• Potassium Biphthalate
• Potassium Hydrogen Phthalate
• Potassium Phthalate

Potassium Hydrogen Phthalate

CAS: 877-24-7

Formula: C₈H₅KO₄

Purity: >99.8%(T)

Color and Shape: White to Almost white powder to crystal

Molecular weight: 204.22

Ref: 3B-P0309

Potassium hydrogen phthalate, 99%

CAS: 877-24-7

Potassium hydrogen phthalate, 99%, Thermo Scientific Chemicals

Formula: C₈H₅KO₄

Purity: 99%

Color and Shape: White, Crystals or powder or crystalline powder or fused solid or flakes

Molecular weight: 204.22

Ref: 02-A12895

Potassium hydrogen phthalate

CAS: 877-24-7

Formula: C₈H₅KO₄

Purity: 95%

Color and Shape: Solid

Molecular weight: 204.222

Ref: 10-F492528

Potassium hydrogen phthalate, primary standard, ACS, 99.95-100.05%

CAS: 877-24-7

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

Formula: C₈H₅KO₄

Purity: 99.95-100.05%

Color and Shape: White, Powder or crystals or crystalline powder

Molecular weight: 204.22

Ref: 02-033351

Potassium hydrogen phthalate, 0.05N Standardized Solution

CAS: 877-24-7

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 Sci

Formula: C₈H₅KO₄

Color and Shape: Clear colorless, Liquid

Molecular weight: 204.22

Ref: 02-035603

Potassium biphthalate

CAS: 877-24-7

Formula: C₈H₅KO₄

Purity: 95%

Color and Shape: Solid

Molecular weight: 204.2212

Ref: IN-DA0035IJ

Potassium hydrogen phthalate

CAS: 877-24-7

Formula: C₈H₅KO₄

Purity: ≥ 99.5%

Color and Shape: White crystalline powder or colourless crystals

Molecular weight: 204.23

Ref: 7W-GK2355

Potassium hydrogen phthalate

CAS: 877-24-7

Potassium hydrogen phthalate is a commonly used semi-organic salt a buffer solution for pH calibration to study the permeability of extracellular substances.

Formula: C₈H₅KO₄

Purity: 99.84%

Color and Shape: Solid

Molecular weight: 204.22

Ref: TM-TN9415

Potassium phthalate monobasic

CAS: 877-24-7

Potassium phthalate monobasic

Formula: ·C₈H₅O₄·K

Purity: ≥95%

Color and Shape: Solid

Molecular weight: 204.22g/mol

Ref: 54-OR921972

Phthalic Acid Potassium Salt

CAS: 877-24-7

Formula: C₈H₅O₄·K

Color and Shape: White To Off-White Solid

Molecular weight: 165.12 39.10

Ref: 4Z-P-151003

Saline Buffer PH4 (Phthalate) 50 tablets

CAS: 877-24-7

Formula: C₈H₅KO₄

Color and Shape: Liquid, No data available.

Molecular weight: 204.222

Ref: 10-F545135

Potassium Hydrogen Phthalate

CAS: 877-24-7

Color and Shape: Neat

Ref: 86-MM2540.06

Potassium Biphthalate

CAS: 877-24-7

Applications Potassium Biphthalate is used as buffer solution.
References Mussini, P., et al.: Pure Appl. Chem., 69, 1007 (1997);

Formula: C₈H₅O₄·K

Color and Shape: Neat

Molecular weight: 204.22

Ref: TR-P698758

Potassium hydrogen phthalate

CAS: 877-24-7

Potassium hydrogen phthalate is a corrosion inhibitor and a co-catalyst for the production of polyvinyl chloride. It has been shown to exhibit toxic effects on the central nervous system, liver, and kidneys in animal studies. Potassium hydrogen phthalate is also used as a corrosion inhibitor in wastewater treatment plants. The toxicity of potassium hydrogen phthalate may be due to its ability to inhibit ryanodine receptor, an intracellular calcium release channel that regulates cellular functions such as muscle contraction, enzyme activities, and cell cycle progression. Potassium hydrogen phthalate can also be used to produce polyvinyl chloride. It has been shown to have toxic effects on insects as well as thermodynamic data related to water vapor. Potassium hydrogen phthalate is an analytical reagent that can be used for picolinic acid determination.

Formula: C₈H₅KO₄

Purity: Min. 95%

Color and Shape: Powder

Molecular weight: 204.22 g/mol

Ref: 3D-FP43259

Potassium Hydrogen Phthalate for HPLC & UV Spectroscopy, 99.9%

CAS: 877-24-7

Formula: C₅H₈KO₄

Purity: min. 99.9%

Color and Shape: White, Crystalline powder, Clear, Colorless

Molecular weight: 204.22

Ref: SR-49017

Potassium Hydrogen Phthalate ExiPlus, Multi-Compendial, 99.95%

CAS: 877-24-7

Formula: C₈H₅KO₄

Purity: min. 99.95%

Color and Shape: White, Crystalline powder/solid, Clear, Colourless

Molecular weight: 204.23

Ref: SR-29467

Potassium Hydrogen Phthalate ACS, 99.95%

CAS: 877-24-7

Formula: C₈H₅KO₄

Purity: min. 99.9%

Color and Shape: White, Crystalline powder/solid, Clear, Colourless

Molecular weight: 204.23

Ref: SR-80633

Saline buffer soln PH4 (phthalate)

CAS: 877-24-7

Formula: C₈H₅KO₄

Molecular weight: 204.222

Ref: 10-F545137