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- They are soft, and easy to shape at room temperature
- Their melting point is above 45 °C
- They cannot be dissolved in water
- They are hydrophobic, that is repelled by water.
Chemically, a wax may be an ester of ethylene glycol (ethan-1,2-diol) and two fatty acids. A fat is an ester of glycerin (propan-1,2,3-triol) and three fatty acids. A wax may also be a combination of other fatty alcohols with fatty acids. It is a type of lipid.