Potassium sodium tartrate tetrahydrate

• Catalog No.: 25508
• CAS Number: 6381-59-5
• M. F.: C4H12KNaO10
• M. W.: 282.22015
• Purity: 99.0-101.0% (calc. on H2O free substance)

SYNONYMS

• Title: 酒石酸钾钠 四水合物
• IUPAC name: potassium sodium (2R,3R)-2,3-dihydroxybutanedioate tetrahydrate
• IUPAC Traditional name: potassium sodium (+)-tartrate tetrahydrate
• Synonyms: Rochelle salt; Seignette salt; L(+)-Tartaric acid potassium Sodium salt; L(+)-酒石酸 钾钠盐; 洛瑟尔氏盐; 罗谢尔盐

DATABASE IDS

• Beilstein Number: 6113568
• MDL Number: MFCD00150989
• CAS Number: 6381-59-5
• EC Number: 206-156-8
• PubChem SID: 24855283

PROPERTIES

• Antion Traces: chloride (Cl-): ≤20 mg/kg
• Antion Traces: sulfate (SO42-): ≤50 mg/kg
• Cation Traces: As: ≤1 mg/kg
• Cation Traces: Ba:, in accordance
• Cation Traces: Ca: ≤50 mg/kg
• Cation Traces: Cu: ≤10 mg/kg
• Cation Traces: Fe: ≤10 mg/kg
• Cation Traces: Hg: ≤1 mg/kg
• Cation Traces: Pb: ≤2 mg/kg
• Cation Traces: Zn: ≤10 mg/kg
• Grade: puriss.
• Impurities: acidity or alkalinity, in accordance
• Impurities: residual solvent, complies
• Impurities: ≤0.001% heavy metals (as Pb)
• Impurities: ≤0.003% total nitrogen (N)
• Impurities: ≤0.004% ammonium (NH4)
• Impurities: ≤0.004% free alkali (as NaOH)
• Impurities: ≤0.0075% free acid (as C4H6O6)
• Impurities: 24-26% water (Karl Fischer)
• Linear Formula: KOCOCH(OH)CH(OH)COONa · 4H2O
• Loss on Drying: 21-26% loss on drying, 150 °C, 3 h
• Purity: 99.0-101.0% (calc. on H2O free substance)
• Quality: meets analytical specification of Ph. Eur., BP, USP, FC, E 337
• Suitability: passes test for appearance of solution
• Optical Rotation: [α]20/D +28.0 to +30.0°
• pH: 6.5-8.5 (20 °C, 1%)
• Personal Protective Equipment: Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
• German water hazard class: 3