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25517 Sigma-Aldrich

Sodium tartrate dibasic dihydrate

meets analytical specification of E335, ≥99%

Synonym: L-(+)-Tartaric acid disodium salt, Disodium tartrate dihydrate, Sodium tartrate dihydrate

  • CAS Number 6106-24-7

  • Empirical Formula (Hill Notation) C4H4Na2O6 · 2H2O

  • Molecular Weight 230.08

  •  Beilstein/REAXYS Number 6121732

  •  EC Number 212-773-3

  •  MDL number MFCD00150035

  •  PubChem Substance ID 24855293

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Properties

assay   ≥99%
quality   meets analytical specification of E335
impurities   residual solvents, in accordance
  ≤0.001% ammonium (NH4)
loss   ≤17% loss on drying, 150 °C, 4 h
pH   7.0-7.5 (20 °C, 1%)
anion traces   chloride (Cl-): ≤50 mg/kg
  oxalate (as oxalic acid): ≤100 mg/kg
  sulfate (SO42-): ≤50 mg/kg
cation traces   As: ≤2 mg/kg
  Ca: ≤100 mg/kg
  Cu: ≤10 mg/kg
  Fe: ≤10 mg/kg
  Hg: ≤1 mg/kg
  K: ≤200 mg/kg
  Pb: ≤5 mg/kg
  Zn: ≤10 mg/kg
SMILES string   [Na+].[Na+].[H]O[H].[H]O[H].O[C@H]([C@@H](O)C([O-])=O)C([O-])=O
InChI   1S/C4H6O6.2Na.2H2O/c5-1(3(7)8)2(6)4(9)10;;;;/h1-2,5-6H,(H,7,8)(H,9,10);;;2*1H2/q;2*+1;;/p-2/t1-,2-;;;;/m1..../s1
InChI key   FGJLAJMGHXGFDE-DGFHWNFOSA-L
Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
3

Documents

Certificate of Analysis (COA)

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