Customization: | Available |
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CAS No.: | 57-55-6 |
Formula: | C3h8o2 |
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Name | 1,2-Propanediol |
Synonyms | Propane-1,2-diol; Propylene glycol |
Molecular Structure | |
Molecular Formula | C3H8O2 |
Molecular Weight | 76.09 |
CAS Registry Number | 57-55-6 |
EINECS | 200-338-0 |
FEMA | 2940 |
Density | 1.036 |
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Melting point | -60 ºC |
Boiling point | 187 ºC |
Refractive index | 1.431-1.433 |
Flash point | 99 ºC |
Water solubility | miscible |
Properties: 1, 2-propylene glycol is a water-soluble organic compound that can dissolve many organic solvents such as ethers and alcohols. -1, 2-propylene glycol has low toxicity. Uses: 1, 2-propylene glycol is a versatile compound that is widely used in many industries. - In the coatings and paint industry, 1, 2-propylene glycol can be used as a thickener and leveling agent. Preparation method: -1, 2-propylene glycol can be prepared by the reaction of propylene oxide with water. - The reaction is generally carried out under high pressure and alkaline conditions.
As a solvent, food additives such as preservatives, pigments, antioxidants that are difficult to dissolve in water can be dissolved in it, and then added to food; It has strong hygroscopic properties and has moisturizing and antifreezing effects on food. China stipulates that it can be used for pastries, and the maximum usage is 3.0g/kg.
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