60360

Potassium phthalate monobasic

puriss. p.a., ≥99.5% (T)

• 동의어(들): KHP, Phthalic acid monopotassium salt, Potassium biphthalate, Potassium hydrogen phthalate
• Linear Formula: HOOCC₆H₄COOK
• CAS Number: 877-24-7
• Molecular Weight: 204.22
• Beilstein: 3637128
• EC Number: 212-889-4
• MDL number: MFCD00013070
• UNSPSC 코드: 12352302
• PubChem Substance ID: 329758904
• NACRES: NA.21

속성

• grade: puriss. p.a.
• Quality Level: 200
• 분석: ≥99.5% (T)
• 양식: solid
• pH: 4
• mp: 295-300 °C (dec.) (lit.)
• 음이온 미량물: chloride (Cl^-): ≤20 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• 양이온 미량물: 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
• 작용기: carboxylic acid
• SMILES string: [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
• InChI key: IWZKICVEHNUQTL-UHFFFAOYSA-M

설명

일반 설명

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.

애플리케이션

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

안전성 정보

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point (°F): 387.1 °F - Pensky-Martens closed cup
• Flash Point (°C): 197.3 °C - Pensky-Martens closed cup
• 개인 보호 장비: Eyeshields, Gloves, type N95 (US)