Trisodium Citrate Anhydrous

CAS Registry Number:

[68-04-2]

Chemical Formula:

C6H5O7Na3

E-Number:

E331

General Information

Trisodium citrate is a tribasic salt of citric acid. It is produced by complete neutralisation of citric acid with high purity sodium hydroxide or carbonate and subsequent crystallisation and dehydration. The common hydrate form, trisodium citrate dihydrate, is widely used in foods, beverages and various technical applications mainly as buffering, sequestering or emulsifying agent.

Jungbunzlauer trisodium citrate anhydrous is manufactured from trisodium citrate dihydrate. Water molecules of the dihydrate crystals are removed by a patented process without destroying the original crystal matrix. The resulting crystals have a porous matrix that can be used as a carrier for inorganic and/or organic substances like perfumes and surfactants. Due to its low water content trisodium citrate anhydrous does not add water to the formulation. It has even the excellent ability to take up surplus water from moisture sensitive formulations thus providing better shelf life to the end product. Therefore, trisodium citrate anhydrous finds its particular uses in water sensitive formulations like instant drinks as well as tablets and powders in pharmaceuticals and detergents.

Trisodium citrate anhydrous occurs as white, granular crystals or as white, crystalline powder. It is freely soluble in water and practically insoluble in ethanol (96 %). It is a non-toxic, neutral salt with low reactivity. It is chemically stable if stored at ambient temperatures. Trisodium citrate anhydrous is fully biodegradable and can be disposed of with regular waste or sewage.

Specification

Jungbunzlauer trisodium citrate anhydrous is supplied in accordance with the current requirements of the United States Pharmacopeia (USP), the Food Chemicals Codex (FCC), and the Commission Regulation (EU) No. 231/2012.

Properties
  • Anhydrous
  • White
  • Granular crystals or crystalline powder
  • Porous matrix
  • Typical, practically odourless
  • Pleasantly salty
  • Freely soluble in water
  • Practically insoluble in ethanol (96 %)
  • Non-toxic
  • Low reactive
  • Chemically and microbiologically stable
  • Fully biodegradable

Main functions

  • pH regulator
  • Chelating agent
  • Buffering agent
  • Flavour enhancer
  • Stabiliser
  • Emulsifying agent
  • Carrier for inorganic and/or organic substances
Applications

Food

  • Baby Food, Infant Formula
  • Cereals, Snacks
  • Confectionery
  • Flavours
  • Ready Meals, Instant Food
  • Sauces, Dressings, Seasonings

Beverages

  • Instant Drinks, Syrups

Personal Care

  • Fragrances
  • Oral Care

Cleaners & Detergents

  • Dish Washing
  • Industrial Cleaners
  • Laundry Care
  • Surface Care

Healthcare

  • Clinical Nutrition
  • OTC, Food Supplements
  • Pharmaceutical Products
Legal aspects