Potassium bitartrate , GR , 868-14-4
Synonym(s):
Potassium Bitartrate;Potassium hydrogen tartrate;Monopotassium tartrate;Potassium L -tartrate monobasic;Potassium acid tartrate
CAS NO.：868-14-4
Empirical Formula: C4H5KO6
Molecular Weight: 188.18
MDL number: MFCD00012471
EINECS: 212-769-1
| Pack Size | Price | Stock | Quantity |
| 500g | RMB207.20 | In Stock |
|
| others | Enquire |
PRODUCT Properties
| Melting point: | 267°C (dec.) |
| Boiling point: | 318℃[at 101 325 Pa] |
| alpha | 32.5 º (c=10, 1N NaOH) |
| Density | 1.954 g/mL at 25 °C(lit.) |
| vapor pressure | 30.69hPa at 25.2℃ |
| Flash point: | 210℃ |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | 5.7g/l |
| form | Crystals or Powder |
| Specific Gravity | 1.954 |
| color | Colorless opaque or white |
| PH | 3.4-3.7 (H2O, 20℃)(saturated solution) |
| Odor | Odorless |
| PH Range | 3.4 - 3.7 at 20 °C |
| optical activity | [α]20/D +8.0 to +9.2° |
| Water Solubility | Soluble in water and dilute mineral acid. Insoluble in alcohol. |
| Merck | 14,7615 |
| BRN | 6119985 |
| Stability: | Stable. Incompatible with strong oxidizing agents. |
| LogP | -5.14 |
Description and Uses
L (+)-Potassium hydrogen tartrate (also known as potassium bitartrate) is the potassiumacid salt of tartaric acid (a carboxylic acid). It is the byproduct during the winemaking process. It can be used in baking or as a cleaning solution. When mixed with an acidic liquid such as lemon juice or white vinegar, it can be made of a paste-like cleaning agent for metals or some other cleaning applications. It can also be used as a pH buffer component in chemistry. It has been recently shown that it is capable of treating breast cancer.
Approved by the FDA as a direct food substance, potassium bitartrate is used as an additive, stabilizer, pH control agent, antimicrobial agent, processing aid, or thickener in various food products. Potassium bitartrate has a long history of medical use as a laxative administered as a rectal suppository and is an approved third-class OTC drug in Japan. Potassium bitartrate was one of active ingredients in Phexxi, a non-hormonal contraceptive agent that was approved by the FDA on May 2020.
Largely in baking powders; coloring metals, galvanic tinning of metals; reducer of CrO3 in mordants for wool.
Safety
| Symbol(GHS) |  GHS07 |
| Signal word | Warning |
| Hazard statements | H315-H319 |
| Precautionary statements | P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P332+P313 |
| Safety Statements | 24/25 |
| WGK Germany | 1 |
| RTECS | WW8223000 |
| TSCA | Yes |
| HS Code | 29181300 |
