Trisodium citrate 2AQ
General Product Information
| Article | Trisodium citrate 2AQ |
| Synonyms | E331(iii), Trisodium 2-hydroxypropane-1,2,3-tricarboxylate, Sodium citrate, Trisodium citrate dihydrate, Citrosodine, Trisodium salt |
| CAS No. | 6132-04-3 |
| EEG No. | 002-006-75-3 |
| EINECS No. | 200-675-3 |
| IMO | – |
| Tariff Code | 29181500 |
| UN No. | – |
| VLG/ADR | – |
Description
Trisodium citrate is a white to nearly white crystalline powder with a high dissolving power in water. It is stable, nontoxic and widely used in various industries because of its buffering, chelating and preservative properties. Trisodium citrate anhydrous is a versatile product that can be used as a pH regulator, stabilizer and flavor improver….
Characteristics
- Odor: –
- Hygroscopic: Yes.
- Color: White.
- Solubility: Highly soluble in water.
- Taste: –
- Shape: Crystalline powder.
Physical & Chemical Properties
| Chemical Structure | Na3C6H5O7 |
| Molar Weight | 258.06 g/mol |
| Melting Point | Approx. 300 °C (decomposes). |
| Boiling Point | – |
| Density | Approx. 1.68 g/cm³. |
| Refractive Index | – |
| pH | 7.5 – 9.0 (on 1% solution) |
Interessing Links
- Codex Alimentarius (FAO/WHO) – Guidelines and standards for food additives and ingredients.
- European Chemicals Agency (ECHA) – For chemical information and regulations.
- European Food Information Council (EFIC)
- European Food Safety Authority (EFSA) – Information on the safety and uses of food additives and ingredients.
- PubChem – Sodium Citrate – Chemical information by the National Library of Medicine of the National Center for Biotechnology Information (NIH-NCBI).
- Wikipedia – Trisodium citrate
Applications
1. Food Industry
Commonly used as an acidity regulator and preservative (including food additive E331(iii)), including in soft drinks, dairy products, candies and canned goods. It improves flavor and extends shelf life.
2. Pharmaceutical Industry
Applied as a buffer agent in medicinal solutions, such as intravenous liquids and drugs, due to its pH stabilizing effect.
3. Cosmetic Industry
Used for pH regulation and as a stabilizer in skin care products.
4. Chemical Industry
Functions as a chelating agent and buffer, for example, to bind metal ions and prevent scale formation.
5. Water Treatment
Helps at removing metal ions and prevents limescale.