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25510 Sigma-Aldrich

Potassium tartrate dibasic hemihydrate

meets analytical specification of DAC, E336, 99-102% (perchloric acid titration)

Synonym: L-(+)-Tartaric acid dipotassium salt, Dipotassium tartrate hemihydrate

  • CAS Number 6100-19-2

  • Linear Formula KOOC(CHOH)2COOK · 0.5H2O

  • Molecular Weight 235.28

  •  Beilstein Registry Number 6121656

  •  EC Number 213-067-8

  •  MDL number MFCD00150136

  •  PubChem Substance ID 57648126

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Properties

Related Categories Essential Chemicals, Potassium Salts, Research Essentials, Salts
InChI Key   BUCMCXRUIRJPKS-QXMMYYGRSA-L
assay   99-102% (perchloric acid titration)
quality   meets analytical specification of DAC, E336
impurities   ≤0.001% ammonium (NH4)
  ≤0.001% heavy metals (as Pb)
loss   ≤4% loss on drying, 150 °C, 4 h
pH   7-9 (20 °C, 0.1%)
anion traces   chloride (Cl-): ≤500 mg/kg
  oxalate (as oxalic acid): ≤100 mg/kg
  sulfate (SO42-): ≤1000 mg/kg
cation traces   As: ≤3 mg/kg
  Ca: ≤100 mg/kg
  Cu: ≤10 mg/kg
  Fe: ≤20 mg/kg
  Hg: ≤1 mg/kg
  Pb: ≤5 mg/kg
  Zn: ≤10 mg/kg

Description

Application

Potassium tartrate dibasic hemihydrate (Potassium L-tartrate dibasic hemihydrate) may be used in the hydrothermal synthesis of 4 metal-organic coordination polymers:
• {[Cd3(C4H4O6)3(H2O)].H2O}n
• {Cd3(C4H3O6)2(H2O)2].5.5H2O}n
• {[Cd2(C4H4O6)2(H2O)].3H2O}n
• [Cd(C4H4O6)]n

General description

Potassium tartrate dibasic hemihydrate is the dipotassium salt of tartaric acid.

Price and Availability

Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
3
Protocols & Articles
Peer-Reviewed Papers
15

References

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