Description
SODIUM CITRATE SALT
Mono • Di • Tri • Anhydrous | IP • BP • USP • LR • AR Grades
Sodium Citrate is the sodium salt of citric acid, available in four forms — Monosodium Citrate, Disodium Citrate, Trisodium Citrate, and Anhydrous. It is a white, odourless, crystalline solid that is freely soluble in water and exhibits a mildly alkaline pH in solution. Aaru Life Science supplies Sodium Citrate in multiple pharmacopoeial and laboratory grades including IP, BP, USP, LR, and AR, ensuring suitability across a wide range of pharmaceutical, food, analytical, and industrial applications. Each batch is manufactured under strict quality control and is compliant with the respective pharmacopoeial standards, making it a reliable choice for formulators, researchers, and industrial users alike.
📘 IP Grade
📙 BP Grade
📗 USP Grade
🧪 LR Grade
🔬 AR Grade
📙 BP Grade
📗 USP Grade
🧪 LR Grade
🔬 AR Grade
🧾 1. Product Identification
| Product Name | Sodium Citrate Salt (Mono / Di / Tri / Anhydrous) |
|---|---|
| Other Names | Monosodium Citrate, Disodium Citrate, Trisodium Citrate, Sodium Citrate Anhydrous |
| Chemical Formula | NaH₂C₆H₅O₇ (Mono) | Na₂HC₆H₅O₇ (Di) | Na₃C₆H₅O₇ (Tri) | Na₃C₆H₅O₇ (Anhydrous) |
| CAS Number | 18996-35-5 (Mono) | 6132-04-3 (Di) | 6132-04-3·2H₂O (Tri) | 68-04-2 (Anhydrous) |
| Molecular Weight | 214.11 g/mol (Mono) | 236.09 g/mol (Di) | 294.10 g/mol (Tri) | 258.07 g/mol (Anhydrous) |
| Grade | IP / BP / USP / LR / AR |
| HS Code | 29181500 |
⚗️ 2. Physical & Chemical Properties
| Appearance | White odourless crystalline powder / granules |
|---|---|
| Odour | Odourless |
| Melting Point | >300°C (Tri / Anhydrous, decomposes) |
| Boiling Point | Decomposes on heating |
| Density | 1.70 g/cm³ (Trisodium Citrate) |
| pH (5% solution) | 7.0 – 9.0 (Tri) | 4.9 – 6.0 (Mono) | 6.5 – 8.0 (Di) |
| Solubility | Freely soluble in water; practically insoluble in ethanol |
📐 3. Grade-wise Specifications
| Parameter | IP / BP / USP | LR (Lab Reagent) | AR (Analytical) |
|---|---|---|---|
| Assay (dry basis) | 99.0 – 101.0% | ≥ 98.0% | ≥ 99.5% |
| Chloride (Cl) | ≤ 0.005% | ≤ 0.01% | ≤ 0.001% |
| Sulphate (SO₄) | ≤ 0.005% | ≤ 0.01% | ≤ 0.001% |
| Heavy Metals (Pb) | ≤ 10 ppm | ≤ 20 ppm | ≤ 5 ppm |
| Iron (Fe) | ≤ 10 ppm | ≤ 20 ppm | ≤ 5 ppm |
| Arsenic (As) | ≤ 2 ppm | ≤ 5 ppm | ≤ 1 ppm |
| Oxalate | ≤ 0.03% | ≤ 0.05% | ≤ 0.01% |
| Loss on Drying | ≤ 0.5% (Anhy) | ≤ 13.0% (Tri) | ≤ 1.0% | ≤ 0.5% |
| Appearance of Solution | Clear & colourless | Clear | Clear & colourless |
🧪 4. Applications & Uses
🍽️ Food & beverage industry acidity regulator, buffering agent and flavour enhancer in carbonated drinks, dairy products, jams and confectionery (E331)
💊 Pharmaceutical formulations buffering agent, anticoagulant and electrolyte replenisher in oral, injectable and dialysis preparations
🩸 Blood anticoagulant trisodium citrate used as anticoagulant in blood collection tubes and blood banking applications
💧 Dialysis component in haemodialysis and peritoneal dialysis solutions for pH and electrolyte control
💄 Cosmetics & personal care pH buffering and chelating agent in creams, shampoos and personal care formulations
⚗️ Analytical chemistry preparation of citrate buffers, reagents and standard solutions in laboratory work
🧼 Detergents & cleaning products builder and chelating agent replacing phosphates in eco-friendly detergent formulations
📸 Photography component in photographic developing and fixing solutions
🧵 Textile industry buffering and sequestering agent in dyeing and finishing processes
💧 Water treatment chelating and sequestering agent for removal of calcium and magnesium in water softening systems
🏚️ 5. Storage & Handling
| Storage Condition | Store in a cool, dry and well-ventilated area away from direct sunlight, heat sources and moisture. Keep container tightly closed. Store away from strong acids and oxidising agents. |
|---|---|
| Shelf Life | 3 years from date of manufacture in original sealed packaging. |
| Hazard Classification | Non-hazardous. Not classified as dangerous goods for transport. |
| Regulatory Status | Compliant with IP, BP, USP pharmacopoeia. GRAS (Generally Recognised As Safe) status. Approved food additive (E331). |
| Packaging | 20 Kg. Bags / 25 Kg. Bags |
| Documents Available | Certificate of Analysis (COA), Material Safety Data Sheet (MSDS) available on request. |
✅ Aaru Life Science Trusted Sodium Citrate Supplier (IP/BP/USP/LR/AR) | COA & MSDS available on request
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