25510

Potassium tartrate dibasic hemihydrate

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

• Synonym(s): L-(+)-Tartaric acid dipotassium salt, Dipotassium tartrate hemihydrate
• Linear Formula: KOOC(CHOH)₂COOK · 0.5H₂O
• CAS Number: 6100-19-2
• Molecular Weight: 235.28
• Beilstein/REAXYS Number: 6121656
• EC Number: 213-067-8
• MDL number: MFCD00150136
• UNSPSC Code: 12352100
• PubChem Substance ID: 57648126
• NACRES: NA.21

Properties

• Quality Level: 200
• assay: 99-102% (perchloric acid titration)
• form: solid
• 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 (SO₄^2-): ≤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
• SMILES string: O.[K+].[K+].O[C@H]([C@@H](O)C([O-])=O)C([O-])=O
• InChI: 1S/C4H6O6.2K.H2O/c5-1(3(7)8)2(6)4(9)10;;;/h1-2,5-6H,(H,7,8)(H,9,10);;;1H2/q;2*+1;/p-2/t1-,2-;;;/m1.../s1
• InChI key: BUCMCXRUIRJPKS-QXMMYYGRSA-L

Description

General description

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

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

Safety Information

• pictograms: GHS05
• signalword: Danger
• hcodes: H318
• pcodes: P280 - P305 + P351 + P338 + P310
• Hazard Classifications: Eye Dam. 1
• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)