60413

Potassium sodium tartrate tetrahydrate

BioUltra, ≥99.5% (NT)

• Synonym(s): L(+)-Tartaric acid potassium Sodium salt, Rochelle salt, Seignette salt
• Linear Formula: KOCOCH(OH)CH(OH)COONa · 4H₂O
• CAS Number: 6381-59-5
• Molecular Weight: 282.22
• Beilstein/REAXYS Number: 6113568
• EC Number: 206-156-8
• MDL number: MFCD00150989
• UNSPSC Code: 12352100
• PubChem Substance ID: 57651761
• NACRES: NA.26

Properties

• product line: BioUltra
• Quality Level: 200
• assay: ≥99.5% (NT)
• form: solid
• optical activity: [α]20/D +22±1°, c = 1% in H₂O
• impurities: insoluble matter, passes filter test; ≤0.002% total nitrogen (N)
• pH: 7.0-8.5 (25 °C, 1 M in H₂O)
• solubility: H₂O: 1 M at 20 °C, clear, colorless
• anion traces: chloride (Cl^-): ≤5 mg/kg; phosphate (PO₄^3-): ≤10 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• cation traces: Al: ≤5 mg/kg; As: ≤0.1 mg/kg; Ba: ≤5 mg/kg; Bi: ≤5 mg/kg; Ca: ≤10 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤5 mg/kg; Li: ≤5 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Mo: ≤5 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Sr: ≤5 mg/kg; Zn: ≤5 mg/kg
• λ: 1 M in H₂O
• UV absorption: λ: 260 nm A_max: 0.026; λ: 280 nm A_max: 0.022
• SMILES string: O.O.O.O.[Na+].[K+].O[C@H]([C@@H](O)C([O-])=O)C([O-])=O
• InChI: 1S/C4H6O6.K.Na.4H2O/c5-1(3(7)8)2(6)4(9)10;;;;;;/h1-2,5-6H,(H,7,8)(H,9,10);;;4*1H2/q;2*+1;;;;/p-2/t1-,2-;;;;;;/m1....../s1
• InChI key: VZOPRCCTKLAGPN-ZFJVMAEJSA-L

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 1
• ppe: Eyeshields, Gloves, type N95 (US)