Citric acid can form a variety of esters, and some of these esters can have waxy characteristics. The waxy nature of an ester largely depends on its molecular structure and the length of its carbon chains. Here are a few examples of esters derived from citric acid that might have waxy properties:
1. **Triethyl Citrate**: This is an ester of citric acid and ethanol. It is relatively low in viscosity and can exhibit some waxy characteristics