Sodium Citrate Supplier, Exporter & Global Wholesaler
PAU Chemicals is an India-based global supplier and exporter of Sodium Citrate Dihydrate (E331) at 99% minimum, in BP, USP and FCC grades, for beverage, dairy, pharmaceutical and detergent manufacturers.
Sodium Citrate is the buffering counterpart to citric acid. Where citric acid drives pH down, sodium citrate holds it steady — and it chelates calcium and magnesium at the same time, which is what makes it indispensable in processed cheese and beverage systems.
PAU Chemicals supplies trisodium citrate dihydrate in BP, USP and FCC grades, in powder and granular form with assay, moisture and heavy metals documented per batch.
In processed cheese, sodium citrate is what stops the fat and protein separating when heated. It is the difference between a smooth melt and an oily, split mess — which is why it appears in every commercial cheese sauce.
Technical Specifications
Product Characteristics | Product Details |
Product Name | Sodium Citrate Dihydrate (Trisodium Citrate) |
Chemical Formula | Na₃C₆H₅O₇·2H₂O |
CAS Number | 6132-04-3 |
HS Code | 2918 15 20 |
E / INS Number | E331(iii) |
Molecular Weight | 294.10 g/mol |
Appearance | White crystalline powder or granules |
Odour | Odourless |
Taste | Saline, mildly tart |
Assay (dried basis) | 99.0 – 100.5% |
Water Content | 11.0 – 13.0% |
pH (5% solution) | 7.5 – 9.0 |
Chloride | 50 ppm max |
Sulphate | 150 ppm max |
Oxalate | 100 ppm max |
Heavy Metals (as Pb) | 5 ppm max |
Lead (Pb) | 0.5 ppm max |
Arsenic (As) | 1 ppm max |
Solubility in Water | Freely soluble |
Storage | Sealed, cool, dry |
Reference Standard | BP / USP / FCC / E331 |
Available Grades
BP / USP grade
Food grade
Export Details
Minimum Order Quantity: 1 FCL
Country of Origin: India
Mode of Transportation: By Sea
Loading Ports: Hazira (Surat, Gujarat) & Nhava Sheva / JNPT (Navi Mumbai)
Shipping: FCL
Incoterms: EXW, FOB, C&F (CFR) & CIF
Payment Terms: TT / Bank Transfer & LC at Sight
Delivery Time: 3 to 4 weeks
Logistics Packaging: 25 kg HDPE/PP bags with LDPE liner
Dangerous Goods: Not classified as dangerous goods for transport
Documentation: Invoice, Packing List, Bill of Lading, COA, MSDS & Certificate of Origin
Certifications
Food & Beverage Applications
Processed cheese and cheese sauce emulsifying salt
Soft drinks and beverage buffering
Sports and electrolyte drinks
Dairy, cream and condensed milk stabilisation
Jams, jellies and confectionery
Ice cream and frozen desserts
Meat processing and curing
Flavour enhancement and acidity regulation
Industrial & Technical Applications
Pharmaceutical formulations and blood anticoagulant
Effervescent tablets and oral rehydration salts
Detergent builder and phosphate replacement
Cosmetics and personal care pH buffering
Electroplating and metal treatment
Why Choose PAU Chemicals
Genuine Direct Supply — straight to the importer with no hidden intermediaries
Ethical Sourcing — ensuring 100% transparent and compliant procurement
Stable, Consistent Quality — for uninterrupted production and reliable 99% minimum assay
Competitive Pricing — offering strong commercial value for bulk FCL buyers
Flawless Documentation — handling all trade paperwork for smooth port clearance
Preferential Tariff Support — leveraging trade agreements to reduce your import duties
What is Sodium Citrate, and what is it called locally?
It is trisodium citrate dihydrate, listed as E331 and usually called sodium citrate or trisodium citrate in trade.
What is it used for?
Buffering beverages, emulsifying processed cheese, stabilising dairy, electrolyte drinks, pharmaceutical formulations, oral rehydration salts and detergent building.
How does it differ from citric acid?
Citric acid lowers pH; sodium citrate holds pH steady as a buffer and chelates calcium and magnesium. They are often used together to set and hold a target pH.
Why is it used in processed cheese?
It sequesters calcium from the casein network, which lets fat and protein stay emulsified when heated. Without it, a heated cheese sauce separates into oil and curd.
Is it the same as sodium citrate used medically?
Pharmacopoeial grade is used in anticoagulant and rehydration applications. Specify BP or USP grade for those uses — food grade is not documented for pharmaceutical manufacture.
Can it replace phosphates in detergents?
It is widely used as a phosphate-free builder, chelating hardness ions in the wash water. Performance is good, though usually at a higher dose than the phosphate it replaces.
How should it be stored, and what is the shelf life?
Sealed, lined bags in a cool, dry place. It is mildly hygroscopic and cakes in humid storage.
Which ports and Incoterms do you ship on, and how long does delivery take?
Hazira and Nhava Sheva on EXW, FOB, C&F and CIF terms, typically 3 to 4 weeks, shipping as general cargo. Export MOQ is 1 FCL.
Frequently Asked Questions
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