Potassium tartrate dibasic hemihydrate
SIAL/25510 - 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
Empirical Formula (Hill Notation): C4H4K2O6 · 0.5H2O
Molecular Weight: 235.28
EC Number: 213-067-8
MDL Number: MFCD00150136
Linear Formula: KOOC(CHOH)2COOK · 0.5H2O
Product Type: Chemical
| anion traces | chloride (Cl-): ≤500 mg/kg |
| oxalate (as oxalic acid): ≤100 mg/kg | |
| sulfate (SO42-): ≤1000 mg/kg | |
| assay | 99-102% (perchloric acid titration) |
| 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 | |
| form | solid |
| impurities | ≤0.001% ammonium (NH4) |
| ≤0.001% heavy metals (as Pb) | |
| InChI | 1S/C4H6O6.2K.H2O/c5-1(3(7 |
| InChI key | BUCMCXRUIRJPKS-QXMMYYGRSA |
| loss | ≤4% loss on drying, 150 °C, 4 h |
| pH | 7-9 (20 °C, 0.1%) |
| quality | meets analytical specification of DAC, E336 |
| Quality Level | 200  |
| SMILES string | O.[K+].[K+].O[C@H]([C@@H] |
| 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. |
| Symbol |  GHS05 |
| Signal word | Danger |
| Hazard statements | H318 |
| Precautionary statements | P280 - P305 + P351 + P338 + P310 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | 99-102% (perchloric acid titration) |
| UNSPSC | 12352100 |