Food & Beverage
Food grade available from our sister company Rigest.
Food & Drink applications include it being added to ice cream as an emulsifying agent to keep fats from separating, to caramel to prevent sucrose crystallization, or to recipes in place of fresh lemon juice. Citric acid is used with sodium bicarbonate in a wide range of effervescent formulae, both for ingestion and for personal care (i.e. bath salts, bath bombs, and cleaning of grease).
Dyeing – used in food colouring to balance pH level of a normally basic dye. It is used as an odourless alternative to white vinegar for home dyeing with acid dyes
Cosmetics & pharmaceuticals – pH adjusting agent in creams and gels of all kinds. Citric Acid is popular in pharmaceuticals and cosmetics as a result of its low toxicity.
Cleaning and chelating agent – an excellent chelating agent, binding metals. It is used to remove lime scale from boilers and evaporators.
Industrial and construction – Airedale Chemical Citric acid can be used as a successful alternative to nitric acid in passivation of stainless steel.
Citric acid can be used as a lower-odour stop bath as part of the process for developing photographic film.
In the agrochemical industry, citric acid is used in the production of fertilisers providing acidity, acting as a pH buffer and chelating metal ions.
Citric acid can also be added to herbicide and insecticides ineffectiveness caused by hard water. The addition of citric acid reduces the solution pH and helps increase the activity of herbicides that are weak acids such as glyphosate.
Detergent & Cleaning
In detergents, shampoos and soap, Citric Acid is added so that foam is more easily produced. It also increases the efficiency of detergent products helping to dissolve stains more quickly. The acid is favoured over other additives because it is environmentally friendly and biodegradable.
Approximately one-third of Citric Acid consumption is from detergent manufacturers.
Citric acid is added to many natural skin products such as creams and lotions to adjust pH, act as an antioxidant which conceals the signs of ageing and a skin exfoliator.
Pet Care & Feeds
In animal feed, Citric Acid is used for feed complementation and acidity regulation. The addition of citric acid reduces the pH of aqueous suspensions of compound feedingstuffs and feed materials.
Plastics & Polymers
A large amount of Citric Acid is used in the plastics industry to produce substances that make plastic flexible known as plasticisers.
In the textiles industry, Citric Acid is used as a cleansing agent for boiler water, mordanting agent in dyeing and as a sequestering agent.