Citric Acid (C6H8O7)

This is our most popular Citric Acid (C6H8O7) – Citric Acid Anhydrous (General Use)

Citric Acid Anhydrous (General Use)

From: 23.45

From: 23.45


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Why Buy Citric Acid (General Use) Grade Online from ReAgent Chemicals?

At ReAgent, we supply Citric Acid (General use) in 500g and 5 kg containers, as well as 25 kg bags with discounts available for bulk orders. We also offer other options for all our products, including customised labelling and bespoke blending. All our products come with 100% quality guarantee and are usually shipped within 24 hours.


The Occurrence of Citric Acid

This compound exists in a great variety of fruits and vegetables but undoubtedly is most predominant in citrus fruits, such as lemons, grapefruits and oranges. In these fruits, citric acid can reach concentrations around 8-10% of dry weight, but these values range widely depending on the species and cultivar.


The Role of Citric Acid in Metabolism

Citric acid, or its conjugate citrate, is an essential component participating in various physiological processes, including oxidation of fats, carbohydrate and proteins. As such, it is involved in the production of over 60% of the energy derived from food. In 1953, Hans Adolf Krebs, from the University of Sheffield, was awarded the Nobel Prize in Medicine for the discovery of what is now known as the Krebs Cycle or the Citric Acid Cycle.

Basically, the Citric Acid Cycle is a series of reactions to generate energy in the form of adenosine triphosphate (ATP). In the process, citric acid is the main player as it is consumed and then regenerated to complete the cycle.


Free Technical Advice

With over 40 years’ experience, ReAgent has built an enviable reputation for high-quality products and second to none customer services. We offer free technical support, and a member of staff will be glad to assist you before, during and after your purchase. In addition to citric acid, we have a wide range of products, as well as bespoke chemicals to cover all your needs.




MSDS Files

The following files are available to download:

Product IDProductpost_statusBulkDownload SDS File
3377Citric Acid Anhydrous (General Use)publish2673 - 2673 - SDS20984.pdf

Our most popular product is displayed above. Other variants of this product are displayed below.

What is Citric Acid?

Citric acid is a weak organic acid that is naturally found in citrus and juicy fruits such as lemons, limes, oranges, grapefruit, apples, pears and berries. Although it is often associated with sweet-tasting fruit, citric acid appears as odourless and colourless crystals.

  • Appearance: Solid
  • Formula: C6H8O7
  • Melting point: 153°C
  • Boiling point: 175°C
  • Density: 500-950 kg/m3 CAS No.: 77-92-9

Citric Acid Uses

Citric acid is used in many applications such as:

  • Food flavouring, colouring or preservation. It is also often added to products like ice cream as an emulsifying agent to stop fats from separating
  • Cleaning and chelating agents, particularly in the home bathroom and kitchen cleaning products. It is also used to remove rust from steel in the industry
  • Bath bombs, where it reacts with baking soda to release carbon dioxide. This what causes the bath bomb to fizz
  • Photographic development to neutralize the alkaline developing solutions
  • pH balancing for pharmaceuticals
  • Substitution of nitric acid in industry.

Production of Citric Acid

Citric acid at room temperature is a white crystalline powder in either anhydrous or monohydrate forms. Monohydrate citric acid can be easily dried by heating the crystals at 78oC, but higher temperatures will result in decarboxylation. This compound can dissolve in water, ethanol, ether, DMSO and other solvents.

ReAgent sells citric acid in containers of 500g all the way up to 25kg bags. Should a smaller or larger quantity be required, please contact us. Precautions must be taken at all times when handling chemicals – please refer to this chemical’s material data safety sheet (MSDS) for full details.

Citric Acid Side Effects

Although it is a weak acid, citric acid can cause adverse effects in humans if inhaled or ingested in large, concentrated quantities over a long-term period. It is crucial that all handling and storage guidelines are properly adhered to at all times regarding this product.

Side effects of consuming too much citric acid include stomach cramps, nausea, diarrhoea or vomiting and increased sweating or swelling.

Buy Citric Acid from UK Suppliers

We are leading chemical manufacturers with a 100% quality guarantee on every product. Buy citric acid from our online shop and benefit from a range of batch sizes, 24-hour delivery and discounts on bulk orders.