Citric Acid (Laboratory Use)

24th October 2018

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An image showing Citric Acid (Laboratory Use) in a 500g container

Why Buy Citric Acid (Laboratory use) online from ReAgent Chemicals?

We supply citric acid (laboratory use) with a minimum 99.5% purity in 500g containers with discounts available for bulk orders. We also offer further options, with this and all our products, such as customised labelling or specific pack sizes.

About Citric Acid

Some of the most important chemical and physical properties include:

  • Citric acid is a weak acid, with properties similar to other carboxylic acids
  • Molecular Formula: C6H8O7
  • Molecular mass: 192.12 g/mol
  • Odour: odourless
  • Taste: Strong acidic taste
  • Melting and boiling point: 156°C and 310°C, respectively
  • Appearance: translucent to white crystals
  • Highly hygroscopic
  • Exists as anhydrous or monohydrate forms: the water-free version crystalises hot water, while the water-containing form crystalises from cold water
  • Decomposes at temperatures above 175°C by losing carbon dioxide and water
  • Solubility: soluble in water, ethanol, ether and ethyl acetate; insoluble in toluene, benzene, and chloroform


Common Applications

Common applications for citric acid include:

  • Natural preservative and conservative
  • Food additive, acidifier, food colouring and flavouring
  • Chelating agents and anticoagulants
  • Cleaning products, particularly useful to remove limescale
  • Cosmetics, as a pH regulator (typically classed as used in the process of manufacture and it doesn’t need to be included in the list of ingredients)
  • Pharmaceuticals, with citric acid a popular ingredient in effervescent antiacid powders and tablets
  • Photography, to stop the process of developing film (photographic developers have a high pH, so a mild acid can neutralise their action quickly)
  • Chemical intermediate for esters and salts
  • Used in analytical chemistry to assess the presence of reducing sugars (present in Benedict’s Reagent)
  • Used in the construction industry, to protect steel against corrosion


Over 40 Years’ Experience

With over 40 years’ experience in the field, we’ve built an enviable reputation for high-quality products and excellent customer service. All our products come with 100% quality guarantee and are usually shipped within 24 hours of purchase.

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