pH Down

Water soluble pH adjuster

Citric acid is a natural occurring fruit acid, produced commercially by microbial fermentation of a carbohydrate substrate. Citric acid is the most widely used organic acid and pH-control agent in foods, beverages, pharmaceuticals and technical applications.

Citric acid anhydrous occurs as colourless crystals or as white, crystalline powder with a strongly acidic taste. It is very soluble in water, freely soluble in ethanol (96 %) and sparingly soluble in ether.

Citric acid anhydrous is non-toxic and has a low reactivity. It is chemically stable if stored at ambient temperatures. Citric acid anhydrous is fully biodegradable and can be disposed of with regular waste or sewage.

Properties

• Anhydrous
• Colourless or white
• Crystals or crystalline powder
• Strongly acidic (pH in a 5 % solution approx. 1.8)
• Typical, practically odourless
• Very soluble in water
• Freely soluble in ethanol (96 %)
• Sparingly soluble in ether
• Non-toxic
• Low reactive
• Chemically and microbiologically stable
• Fully biodegradable

Main functions

• pH adjuster
• Acidifier
• Chelating agent
• Buffering agent
• Flavour enhancer
• Retarder
• Stabiliser
• Antioxidant