Waxes

Waxes are a class of organic compounds that are hydrophobic, meaning they repel water. They are esters of long-chain fatty acids and long-chain alcohols. Waxes are found in nature and have various uses in everyday life.

Natural Sources of Waxes

Waxes can be found in various natural sources, including plants, animals, and minerals. Some common natural sources of waxes include beeswax, carnauba wax, and paraffin wax.

Functions and Uses of Waxes

Waxes serve several important functions in nature and have numerous practical uses. In nature, waxes help to protect plant leaves from water loss, prevent waterlogging in aquatic plants, and provide a protective coating on the feathers of birds. In everyday life, waxes are used in the production of candles, polishes, coatings for fruits and vegetables, and as ingredients in cosmetics and personal care products.

Properties of Waxes

Some key properties of waxes include their hydrophobic nature, low melting points, and solid, brittle consistency at room temperature. Waxes are insoluble in water but soluble in nonpolar solvents such as ether, chloroform, and benzene.

Study Guide

Here are some key points to remember about waxes:

1. Waxes are esters of long-chain fatty acids and long-chain alcohols.
2. They are hydrophobic and repel water.
3. Common natural sources of waxes include beeswax, carnauba wax, and paraffin wax.
4. Waxes serve various functions in nature and have practical uses in everyday life.
5. Key properties of waxes include their low melting points and insolubility in water.

Remember to review the functions, properties, and natural sources of waxes to have a comprehensive understanding of this topic.