Trisodium Citrate Dihydrate
Trisodium Citrate Dihydrate is a salt of citric acid, produced by the reaction of citric acid and sodium hydroxide. It is commonly used as a buffering agent, acidity regulator, and chelating agent in food, pharmaceutical, and industrial applications. It also enhances flavor and preserves the stability of active ingredients in medications.
- Versatile applications
- Controls acidity
- Enhances flavor
- Biodegradable
Specifications
Identifiers
- Chemical name
- Trisodium Citrate Dihydrate
- CAS number(s)
- 6132-04-03
- EC number
- 200-675-3
- Molecular formula
- Na3C6H5O7·2H2O
- InChI key
- NLJMYIDDQXHKNR-UHFFFAOYSA-K
- INCI name
- Trisodium Citrate
- Synonyms
- Sodium Citrate Tribasic Dihydrate, Citric Acid Trisodium Salt Dihydrate, Sodium Citrate, Dihydrate
Technical specifications
Specifications
| Test Condition | Specification | Value | Unit | Test Method |
|---|---|---|---|---|
| - | Molecular weight | 294.099 | g/mol | - |
| - | Appearance | Translucent crystals or granular powder | - | - |
| - | Odor | Odorless to light maple lactone odor | - | - |
| - | Taste | Saline taste | - | - |
| Solution 5% w/v | Identification Test A | Meets the sodium test | - | - |
| Solution 5% w/v | Identification Test B | Meets the citrates test | - | - |
| - | Identification Test C | Meets the alkali test | - | - |
| Calculated as anhydrous base | Assay | 99 (Min.) - 100.5 (Max.) | % w/w | - |
| at 180 °C for 18 hours | Water Content | 11 (Min.) - 13 (Max.) | % w/w | USP reference method |
| 5% solution w/v, at 25 °C | pH | 8 - 8.7 | - | - |
| Solution 40% w/v | Clarity of Solution | 4 (Max.) | NTU | - |
| Solution 40% w/v, at 420 nm | Color | 98 (Min.) | %T | - |
| - | Heavy Metals (Pb) | 5 (Max.) | mg/kg | Skip-lot model |
| Solution 40% w/v, 360 nm | Iron (Fe) | 5 (Max.) | mg/kg | Skip-lot model |
| - | Arsenic (As) | 1 (Max.) | mg/kg | Skip-lot model |
| - | Mercury (Hg) | 1 (Max.) | mg/kg | - |
| - | Lead (Pb) | 0.5 (Max.) | mg/kg | Skip-lot model |
| As oxalic acid dihydrate, 520 nm | Oxalates | 100 (Max.) | mg/kg | Skip-lot model |
| As sulphates, solution 40% w/v | Sulfate (SO₄) | 100 (Max.) | mg/kg | Skip-lot model |
| - | Chloride (Cl) | 50 (Max.) | mg/kg | - |
| - | Tartrates | Passes test | - | Skip-lot model |
| - | Alkalinity | Passes test | - | - |
| 1 g, 470 nm | Carbonizable Substances | Passes test | - | - |
| - | Foreign Matter | Passes test | - | - |
| - | Evaluation of Insoluble | Passes test | - | - |
| (Granular, 16 mesh) Sieve | Particle Size | 2 (Max.) | % | - |
| (Granular, 80 mesh) Sieve | Particle Size | 2 (Max.) | % | - |
| (Fine, 30 mesh), Sieve | Particle Size | 1 (Max.) | % | - |
| (Fine, 100 mesh), Sieve | Particle Size | 10 (Max.) | % | - |
| - | Bulk Density (Granular) | 1025 | kg/m³ | - |
| - | Bulk Density (Fine) | 1009 | kg/m³ | - |
| In original packaging | Shelf Life | 5 years | - | - |
- Product groups
- Salts
- Applications
- Food additives & enhancersAPI manufacturingJuice & beverage productionChemical synthesis
- Functions
- Buffering agentAcidulantChelating agentpH stabilizer
- Market segments
- Beverage productionFood additivesFertilizersPharmaceutical manufacturingCatalysts
Documents
- Request a copy
Technical Data Sheet (TDS)
Specifications & performance data