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A4727431

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
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Update time: 2022-07-08

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
color  Colorless opaque or white
Specific Gravity 1.954
Odor Odorless
PH Range 3.4 - 3.7 at 20 °C
PH 3.4-3.7 (H2O, 20℃)(saturated solution)
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
CAS DataBase Reference 868-14-4(CAS DataBase Reference)
EPA Substance Registry System Potassium bitartrate (868-14-4)

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
Hazardous Substances Data 868-14-4(Hazardous Substances Data)

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