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Potassium hydrogen phthalate

Potassium hydrogen phthalate Structure
Potassium hydrogen phthalate
  • CAS No.877-24-7
  • Chemical Name:Potassium hydrogen phthalate
  • CBNumber:CB1132397
  • Molecular Formula:C8H5KO4
  • Formula Weight:204.22
  • MOL File:877-24-7.mol
Potassium hydrogen phthalate Property
  • Melting point: :295-300 °C (dec.) (lit.)
  • Boiling point: :98.5-99.5 ;°C/740 ;mmHg(lit .)
  • Density  :1.006 g/mL at 20 °C
  • storage temp.  :Store at +5°C to +30°C.
  • solubility  :H2O: 100 mg/mL, clear, colorless
  • form  :Solid
  • color  :White
  • PH :4.00-4.02 (25.0℃±0.2℃, 0.05M)
  • Odor :Odorless
  • PH Range :3.8 - 4.0 (5% aq. sol.)
  • Water Solubility  :80 G/L (20 ºC)
  • Merck  :14,7612
  • BRN  :3637128
  • Stability: :Stable. Incompatible with strong oxidizing agents.
  • InChIKey :IWZKICVEHNUQTL-UHFFFAOYSA-M
  • CAS DataBase Reference :877-24-7(CAS DataBase Reference)
  • EWG's Food Scores :1
  • FDA UNII :GG9121M623
  • EPA Substance Registry System :Monopotassium phthalate (877-24-7)
Safety
Hazard and Precautionary Statements (GHS)
  • Symbol(GHS)
  • Signal word
  • Hazard statements H303
  • Precautionary statements
Potassium hydrogen phthalate Price More Price(48)
  • Brand: Sigma-Aldrich
  • Product number: BX1628
  • Product name : Buffer pH 4.0 Red
  • Purity: 
  • Packaging: 500 mL
  • Price: $19.98
  • Updated: 2021/03/22
  • Buy: Buy
  • Brand: Sigma-Aldrich
  • Product number: BX1628
  • Product name : Buffer pH 4.0 Red
  • Purity: 
  • Packaging: 4 L
  • Price: $78.99
  • Updated: 2021/03/22
  • Buy: Buy
  • Brand: Sigma-Aldrich
  • Product number: 1.04874
  • Product name : Potassium hydrogen phthalate
  • Purity: for analysis EMSURE? Reag. Ph Eur
  • Packaging: 250 g
  • Price: $80.84
  • Updated: 2021/03/22
  • Buy: Buy
  • Brand: Sigma-Aldrich
  • Product number: BX1628
  • Product name : Buffer pH 4.0 Red
  • Purity: 
  • Packaging: 20 L
  • Price: $100.82
  • Updated: 2021/03/22
  • Buy: Buy
  • Brand: Sigma-Aldrich
  • Product number: P5244
  • Product name : Phosphate buffer solution
  • Purity: 0.1?M
  • Packaging: 100 mL
  • Price: $44.4
  • Updated: 2021/03/22
  • Buy: Buy

Potassium hydrogen phthalate Chemical Properties,Usage,Production

  • Chemical Properties white crystalline powder
  • Uses As primary standard for preparing volumetric alkali solutions, also as a buffer in pH determinations.
  • Purification Methods Crystallise it first from a dilute aqueous solution of K2CO3, then H2O (3mL/g) between 100o and 0o. Before being used as a standard in volumetric analysis, analytical grade potassium hydrogen phthalate should be dried at 120o for 2hours, then allowed to cool in a desiccator. [Beilstein 9 IV 3169.]
Potassium hydrogen phthalate Preparation Products And Raw materials
Raw materials
Preparation Products
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  • BUFFER
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  • BUFFER MIXTURE, PH 6.8
  • BUFFER O
  • BUFFER, PH 1.0
  • BUFFER, PH 1.00
  • BUFFER, PH 11.00
  • BUFFER, PH 1.2
  • BUFFER, PH 12.00
  • BUFFER, PH 12.45
  • BUFFER, PH 12.72
  • BUFFER, PH 1.68
  • BUFFER, PH 2.00
  • BUFFER, PH 10.00
  • BUFFER, PH 10.00, COLOR CODE BLUE
  • BUFFER, PH 1.07
  • BUFFER PH 10, BLUE
  • BUFFER, PH 2.5
  • BUFFER, PH 3.00
  • BUFFER SOLUTION PH 3.00
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  • BUFFER SOLUTION PH 3.776
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  • BUFFER SOLUTION PH 4.00