Trisodium Citrate Dihydrate CAS 68-04-2 Food Grade Acidity Regulator Emulsifying Salt
Product Introduction
Trisodium Citrate Dihydrate (CAS 68-04-2), also called sodium citrate or TSC, is the trisodium salt of citric acid and a versatile food additive listed as E331. It is a white crystalline powder with a mildly saline taste, highly soluble in water and chemically stable. In food and beverage systems it works as an acidity regulator, buffering agent, emulsifying salt and flavour enhancer, and it is also used in pharmaceutical and industrial applications.
Physical and Chemical Specification
| Product Name | Trisodium Citrate Dihydrate (Sodium Citrate) |
| CAS No. | 68-04-2 |
| Molecular Formula | C6H5Na3O7.2H2O |
| Molecular Weight | 294.10 g/mol |
| Appearance | White crystalline powder or granules |
| Assay (Dried Basis) | 99.0% - 100.5% |
| pH (5% solution) | 7.5 - 9.0 |
| Water Content | 10.0% - 13.0% |
| Heavy Metals (as Pb) | <= 5 ppm |
| Solubility | Freely soluble in water |
| Packing | 25 kg net paper bag with PE liner |
Product Functions
- Regulates and buffers acidity in beverages and processed foods
- Acts as an emulsifying salt in processed cheese and dairy
- Enhances flavour and stabilises colour and texture
- Controls pH in pharmaceutical and personal care formulations
- Chelates metal ions to improve product stability
Application Areas
- Carbonated drinks, juices and beverage concentrates
- Processed cheese, dairy and canned foods
- Jams, jellies, desserts and confectionery
- Pharmaceutical and nutraceutical formulations
- Detergent and cleaning products
Manufacturing Process
Citric acid is neutralised with a controlled amount of sodium hydroxide or sodium carbonate to form trisodium citrate solution. The solution is decolourised, filtered and crystallised under vacuum, then dried and screened to obtain Trisodium Citrate Dihydrate with consistent assay and particle size. Each batch is tested for assay, pH, water content and heavy metals.
Why Choose Us
- Food grade purity with full COA and halal/kosher options
- Excellent batch-to-batch consistency and solubility
- Competitive pricing for bulk beverage and dairy buyers
- Fast sampling and reliable export documentation
FAQ
Q: Is your Trisodium Citrate food grade?
A: Yes, our standard product is food grade and meets E331 specification, with halal and kosher certificates available on request.
Q: What is the shelf life?
A: When stored sealed in a cool, dry place, the shelf life is 24 months from production date.
Q: Can you provide a sample for beverage trials?
A: Yes, a free sample is available; please advise your application and required quantity.

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