590-00-1
Product Name:
Potassium sorbate
Formula:
C6H7KO2
Synonyms:
2,4-Hexadienoic acid potassium salt;Potassium 2,4-hexadienoate;Potassium sorbate;Sorbic acid potassium salt
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CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | White crystalline powder showing no change in colour after heating for 90 minutes at 105 °C |
|---|---|
| Color/Form | White powder |
| Odor | Characteristic odor |
| Melting Point | for sorbic acidMelting range of sorbic acid isolated by acidification and not recrystallised 133 °C to 135 °C after vacuum drying in a sulphuric acid desiccator |
| Solubility | Solubility in water at 20 °C: 58.2%; in alcohol: 6.5% |
| Density | 1.363 at 25 °C/20 °C |
| Decomposition | When heated to decomposition it emits toxic fumes of K2O. |
| Other Experimental Properties | Crystalline solid; odorless. Density: 1.36 at 23.5 °C; VP: 0.001 PA at 20 °C; Water solubility: 1.95-543 g/L at 20 °C and pH 4-7; solubility in methanol: 78.2-80.1 mg/L; Surface Tension: 72.6 mN/m at 1 g/L and 20 °C; Dissociation constant: 4.69 at 20 °C; Dissipation half-life (phototransformation in air): 5.16-5.232 hours |
| Chemical Classes | Other Uses -> Preservatives |
COMPUTED DESCRIPTORS
| Molecular Weight | 150.22 g/mol |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 2 |
| Exact Mass | 150.00831095 g/mol |
| Monoisotopic Mass | 150.00831095 g/mol |
| Topological Polar Surface Area | 40.1 Ų |
| Heavy Atom Count | 9 |
| Formal Charge | 0 |
| Complexity | 127 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 2 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 2 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Potassium sorbate is a potassium salt having sorbate as the counterion. It has a role as an antimicrobial food preservative. It contains an (E,E)-sorbate.