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| Synonym: | D-(−)-Tartaric acid monopotassium salt, D-2,3-Dihydroxybutanedioic acid monopotassium salt, Potassium hydrogen D-tartrate |
| CAS Number: | 57341-16-9 |
| Linear Formula: | C4H5KO6 |
| Molecular Weight: | 188.18 |
| Beilstein Registry Number: | 6119984 |
| MDL number: | MFCD00079580 |
| PubChem Substance ID: | 24881856 |
Description
| Other Notes | Unnatural isomer |
Properties
| grade | purum p.a. |
| assay | ≥99.0% |
| optical activity | [α]20/D −31.5±0.5°, c = 10% in 1 M NaOH |
| pH | 3.4-3.7 (25 °C, 0.5% in H2O) |
| anion traces | chloride (Cl-): ≤50 mg/kg |
| | sulfate (SO42-): ≤50 mg/kg |
| cation traces | Ca: ≤50 mg/kg |
| | Cd: ≤50 mg/kg |
| | Co: ≤50 mg/kg |
| | Cu: ≤50 mg/kg |
| | Fe: ≤50 mg/kg |
| | Na: ≤100 mg/kg |
| | Ni: ≤50 mg/kg |
| | Pb: ≤50 mg/kg |
| | Zn: ≤50 mg/kg |
Safety
References
| Beilstein | Beil. 3,III,1020 |
