Potassium Phthalate Monobasic, ACS Grade Reagent, Acidimetric Standard, 1 kg

$261.04

Part Number: MIL-179922-1KG
Lead Time: 7-14 days
Quantity: each
Size: 1 kg
Style: chemical
Description

Potassium Phthalate Monobasic ACS Reagent, Acidimetric Standard & 1 Kg

Synonym: KHP, Phthalic acid monopotassium salt, Potassium biphthalate, Potassium hydrogen phthalate

  • CAS Number 877-24-7
  • Linear Formula HOOCC6H4COOK
  • Molecular Weight 204.22
  • Beilstein/REAXYS Number 3637128
  • EC Number 212-889-4
  • MDL number MFCD00013070
  • PubChem Substance ID 24850834
Grade ACS reagent
Assay 99.95-100.05% dry basis
Quality acidimetric standard
Impurities ≤0.002% S compounds

≤0.003% Cl compounds

≤0.005% insolubles

PH 4.00-4.02 (25.0°C±0.2°C, 0.05 M)
mp 295-300°C (dec.) (lit.)
Cation traces Fe: ≤5 ppm

Na: ≤0.005%

heavy metals (as Pb): ≤5 ppm

Application

Potassium phthalate monobasic may be used as a primary standard in acidimetric titration[1] and also to prepare potassium phthalate buffer solution for pH calibration.

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