60360

Ftalato de potássio monobásico

puriss. p.a., ≥99.5% (T)

• Sinônimo(s): Biftalato de potássio, Hidrogenoftalato de potássio, KHP, Ácido ftálico
• Fórmula linear: HOOCC₆H₄COOK
• Número CAS: 877-24-7
• Peso molecular: 204.22
• Beilstein: 3637128
• Número CE: 212-889-4
• Número MDL: MFCD00013070
• Código UNSPSC: 12352302
• ID de substância PubChem: 329758904
• NACRES: NA.21

Propriedades

• grau: puriss. p.a.
• Nível de qualidade: 200
• Ensaio: ≥99.5% (T)
• Formulário: solid
• pH: 4
• pf: 295-300 °C (dec.) (lit.)
• traços de ânion: chloride (Cl^-): ≤20 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• traços de cátion: Ca: ≤10 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤5 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Na: ≤100 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Zn: ≤5 mg/kg
• grupo funcional: carboxylic acid
• cadeia de caracteres SMILES: [K+].OC(=O)c1ccccc1C([O-])=O
• 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);/q;+1/p-1
• chave InChI: IWZKICVEHNUQTL-UHFFFAOYSA-M

Descrição

Descrição geral

Potassium phthalate monobasic (KHP) is the monopotassium salt of pthalic acid. It has been proposed as a certified reference material (CRM) under ISO/IEC 17025 and ISO Guide 34 accreditation. Its spectral shift, multiplicity, solubility and relaxation times in different solvents have been reported.

Aplicação

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

Informações de segurança

• Código de classe de armazenamento: 11 - Combustible Solids
• Classe de risco de água (WGK): WGK 1
• Ponto de fulgor (°F): 387.1 °F - Pensky-Martens closed cup
• Ponto de fulgor (°C): 197.3 °C - Pensky-Martens closed cup
• Equipamento de proteção individual: Eyeshields, Gloves, type N95 (US)