Dl-potassium bitartrate
CAS 868-14-4
EC 212-769-1
Formula C4H6O6.K
MW 188.18 g/mol
Salts & Minerals Food & NutritionPersonal Care & Cosmetics pH Regulation & BufferingAntioxidant & Stabilizer
Description
DL-Potassium Bitartrate (CAS 868-14-4), also known as cream of tartar, potassium hydrogen tartrate, or cremortartari, is the potassium acid salt of tartaric acid. It carries EC number 212-769-1 and the molecular formula C4H6O6.K, and is traded under regional names including faccla and faccula.
In food production, it functions as a pH buffer and leavening acid, stabilising egg white foams by lowering pH and reinforcing protein networks during whipping. In personal care formulations, it acts as a skin conditioner and protectant, and serves as a heat stabiliser in systems where controlled acidity prevents degradation of sensitive active ingredients.
DL-Potassium Bitartrate is available in food-grade and cosmetic-grade forms as crystals or powder, compliant with FCC and REACH requirements. It falls under HS code 29181300. Procurement teams should confirm grade suitability against applicable regional food or cosmetic regulations prior to sourcing.
In food production, it functions as a pH buffer and leavening acid, stabilising egg white foams by lowering pH and reinforcing protein networks during whipping. In personal care formulations, it acts as a skin conditioner and protectant, and serves as a heat stabiliser in systems where controlled acidity prevents degradation of sensitive active ingredients.
DL-Potassium Bitartrate is available in food-grade and cosmetic-grade forms as crystals or powder, compliant with FCC and REACH requirements. It falls under HS code 29181300. Procurement teams should confirm grade suitability against applicable regional food or cosmetic regulations prior to sourcing.
Physical Properties
| Melting Point | 267°C (dec.) |
| Boiling Point | 318°C[at 101 325 Pa] |
| Density | 1.984 g/cm³ @ Temp: 18 °C |
| Flash Point | 210°C |
| Appearance | white crystalline powder |
| Color | Colorless opaque or white |
| Odor | Odorless |
| Form | Crystals or Powder |
| Water Solubility | Soluble in water and dilute mineral acid. Insoluble in alcohol. |
| Vapor Pressure | 30.69hPa at 25.2℃ |
| Refractive Index | 1.511 |
| pH | 3.4-3.7 (H2O, 20℃)(saturated solution) |
| Log P | -5.14 |
Trade & Regulatory
| HS Code | 29181300 |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 1 |
Other Names
Potassium (2R,3R)-2,3,4-trihydroxy-4-oxobutanoatepotassium L-bitartratemonopotassium L-tartratepotassium L-hydrogentartratefacclaFaeclaFaeculafacculacremortartari
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Raw Materials
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