What is Citric acid? Citric acid is a weak acid that is naturally found in all kinds of citrus fruits. If you have ever bitten in a lemon you have tasted citric acid.
The composition of citric acid is carbon, oxygen, and hydrogen. So the actual formula is C5, H8, and O7.
The properties of citric acid is that it is an odorless and colorless crystal with an acidic taste. Also citric acid is that it can kill bacteria and other substances. Such as when you have kidney stoney Citric acid helps you with that.
The relevance of Citric acid is that it helps people with their lives. Also Citric acid can be found in plants and animals. If you use cosmetics and cleaning products it may have citric acid. However it would not be the one you would find in nature it would be the manufactured version.