Potassium sorbate
From Sciencemadness Wiki
 OTC granules of potassium sorbate
| |
| Names | |
|---|---|
| IUPAC name
Potassium (2E,4E)-hexa-2,4-dienoate
| |
| Other names
E202
Potassium (E,E)-sorbate Sorbistat potassium Sorbistat-K | |
| Properties | |
| C6H7KO2 CH3CH=CH−CH=CH−CO2K | |
| Molar mass | 150.22 g/mol |
| Appearance | White solid |
| Odor | Odorless |
| Density | 1.363 g/cm3 (20 °C) |
| Melting point | 270 °C (518 °F; 543 K) |
| Boiling point | Decomposes |
| 58.5 g/100 ml (100 °C) | |
| Solubility | Soluble in ethanol, methanol, propylene glycol Slightly soluble in acetone Very slightly soluble in chloroform, corn oil, diethyl ether Insoluble in alkanes, benzene, toluene, xylene |
| Vapor pressure | ~0 mmHg |
| Hazards | |
| Safety data sheet | Sigma-Aldrich |
| Lethal dose or concentration (LD, LC): | |
| LD50 (Median dose)
|
4,340 mg/kg (rat, oral) |
| Related compounds | |
| Related compounds
|
Sorbic acid |
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Potassium sorbate is the potassium salt of sorbic acid, with the chemical formula CH3CH=CH−CH=CH−CO2K.
Contents
Properties
Chemical
Addition of a strong acid will form sorbic acid.
Physical
Potassium sorbate is a white solid, soluble in water.
Availability
Potassium sorbate can be bought from winemaking suppliers. Can also be purchased online.
Preparation
Potassium sorbate is easily produced by neutralizing sorbic acid with potassium hydroxide.
Projects
- Make sorbic acid
- Food preservative
Handling
Safety
Potassium sorbate is non-toxic and safe to handle.
Storage
In closed plastic or glass bottles.
Disposal
Potassium sorbate doesn't require special disposal. Discard it as you wish.
