Citric Acid

Citric Acid classifies under weak organic acid found naturally in citrus fruits and vegetables and mostly finds its application as chelating agent, acidifier and flavouring agent. It inhibits the growth of scales in boiler system and even can be used in water treatment mechanism.

In heavy industries, citric acid can be used as a metal passivation chemical for stainless steel. Even in developing usual photographing films and plates, citric acid can be used as a neutralizing agent to nullify the action of alkaline solution which is required to transfer the latent pixels to visible image.

Citric Acid is an useful ingredient in beverages, jams, jellies, candies and frozen foods. It is also added to gelatin and fruit-based desserts as well as in canned vegetables and meat products. The buffering properties of citrates are used to control pH in household cleaners and pharmaceuticals. Citric acid’s ability to chelate metals makes it useful in soaps and laundry detergents. By chelating the metals in hard water, it lets these cleaners produce foam and work more efficiently without the need for water softening.

Similarly, citric acid is used to regenerate the ion exchange materials used in water softeners by stripping off the accumulated metal ions as citrate complexes. It is used in the biotechnology and pharmaceutical industry to passivate high purity process piping in substitution for using nitric acid.

Citric acid is recognized as being safe for use in food by all major national and international food regulatory agencies. It is naturally present in almost all forms of life, and excess citric acid is readily metabolized and eliminated from the body.

Key Features and Benefits

  • Serves to be an efficient descaling agent
  • Acts as an excellent chelating agent
  • Used for the removal of lime scale from boilers and evaporators
  • Serves to be an useful agent in soaps and laundry detergents

Physicochemical Data

Properties Typical Value
Form Crystalline
Appearance White
Solubility Soluble in cold water

Handling Measures
and Precautions

Proper human safety products such as splash goggles, lab coat, dust respirator, NIOSH approved gloves and boots should be worn while handling and applying chemicals. Splashes on the skin should be washed off with water immediately. In case of splashing into the eyes, flush them with fresh water and obtain medical attention. Should not be injected.


Should be stored in original vented containers, away from heat, direct sunlight and combustibles. Store in a cool and dry place. Please refer label and SDS for details.