Food & Beverage
Guar Gum Powder
Guar gum
Natural galactomannan thickener used in food, textile printing, oil and gas and pharmaceuticals.
Applications
- Thickening & binding
- Food processing
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Food & Beverage
Sodium Citrate
Na3C6H5O7
Sodium salt of citric acid used as a buffering agent, emulsifying salt and sequestrant.
- Chemical name
- Trisodium citrate
- CAS number
- 68-04-2
- Also known as
- Trisodium citrate, E331
Product overview
Sodium citrate is the sodium salt of citric acid. It acts as a buffer and sequestrant, helping to control acidity and bind metal ions in solution.
Food and beverage producers use it to regulate acidity and as an emulsifying salt, while it also appears in pharmaceutical formulations and in detergents and cleaning products as a builder. Food and pharmaceutical use requires a suitably certified grade.
Applications
Typical uses for this chemical. Suitability for a specific process, and grade requirements for food, pharmaceutical or potable-water use, should be confirmed with our team.
Technical information
| Chemical name | Trisodium citrate |
|---|---|
| Formula | Na3C6H5O7 |
| CAS number | 68-04-2 (anhydrous)6132-04-3 (dihydrate) |
| Molecular weight | 294.10 g/mol (dihydrate, Na3C6H5O7·2H2O); 258.07 g/mol (anhydrous) |
| HS code | 2918.15 |
| Transport classification | Not regulated for transport |
| Appearance | White granular crystals or white crystalline powder; practically odourless, salty taste; freely soluble in water, practically insoluble in ethanol |
| Forms | Granular crystals (medium, e.g. 0.40-1.25 mm) · Fine granular (e.g. < 0.63 mm) · Fine powder (e.g. < 0.355 mm) · Mesh cuts 12-40, 30-100, 40-100 mesh (Chinese-origin) |
| Grades | Food grade FCC / E331(iii) (EU Regulation 231/2012) · Pharmaceutical grade USP / Ph. Eur. / BP · Technical grade (detergents, industrial) |
| Packaging | 25 kg net PE bags or PE-coated multi-wall paper bags · 1,000 kg big bags with PE inner liner |
Identifiers and classifications are standard reference data for the substance. Forms, grades and packaging reflect what is commonly traded internationally; availability for your order is confirmed in the quotation.
Typical specifications
Typical values for commonly traded grades of Sodium Citrate, based on international standards and published manufacturer data.
Dihydrate, food / pharma grade (typical)
| Parameter | Typical value |
|---|---|
| Assay (dried basis) | 99.0-100.5% |
| pH (5% solution) | 7.5-9.0 |
| Water (loss on drying) | 11.0-13.0% |
| Chloride | ≤ 50 mg/kg |
| Sulphate | ≤ 100 mg/kg (some suppliers ≤ 150 mg/kg) |
| Oxalate (as oxalic acid) | ≤ 100 mg/kg |
| Lead (Pb) | ≤ 0.5-1 mg/kg |
| Arsenic (As) | ≤ 1 mg/kg |
| Mercury (Hg) | ≤ 0.5-1 mg/kg |
| Heavy metals (as Pb) | ≤ 5 mg/kg |
| Bulk density | 750-1,100 kg/m3 |
JECFA limits, INS 331(iii)
| Parameter | Typical value |
|---|---|
| Assay | ≥ 99.0% (dried basis) |
| Loss on drying, dihydrate (180 °C) | ≤ 13% |
| Lead | ≤ 2 mg/kg |
| Oxalate | Passes limit test (no turbidity within 1 h) |
| Alkalinity | Passes test |
Reference standards:FCC (Food Chemicals Codex) Sodium CitrateUSP Sodium CitratePh. Eur. / BP Sodium CitrateJECFA Trisodium citrate, INS 331(iii)Commission Regulation (EU) No 231/2012, E 331(iii)21 CFR 184.1751 (GRAS)
Supplied as trisodium citrate dihydrate in granular and fine powder cuts.
Typical values are for guidance. The specification for your order depends on grade and origin and is confirmed in the quotation, Technical Data Sheet and Certificate of Analysis.
Packaging
- 25 kg net PE bags or PE-coated multi-wall paper bags
- 1,000 kg big bags with PE inner liner
Packaging commonly used for export shipments of this product. Availability depends on grade and origin and is confirmed per order.
Packaging confirmed per order
Tell us your preferred packaging and handling requirements — we'll confirm available options for your grade, volume and destination.
Industries
Documentation
Request the documents you need to evaluate Sodium Citrate. We send documents that match the grade being quoted.
- TDS
Technical Data Sheets
Product specifications and technical information.
- SDS
Safety Data Sheets
Safety and handling documentation where available.
- COA
Certificate of Analysis
Batch-specific documentation where applicable.
Request a Quote
Get a quotation for Sodium Citrate
Share your quantity and destination — our export team will confirm grade, packaging and pricing.
Frequently asked questions
What grades of Sodium Citrate are available?
Sodium Citrate is commonly traded as Food grade FCC / E331(iii) (EU Regulation 231/2012); Pharmaceutical grade USP / Ph. Eur. / BP; Technical grade (detergents, industrial). Availability varies by origin and destination market — share the grade, purity or standard you require and we will confirm what can be supplied, with the current specification.
What is the HS code for Sodium Citrate?
Sodium Citrate is usually classified under HS 2918.15. National tariff codes add further digits and can differ by form and country, so confirm the full code with your customs broker before shipment.
Is Sodium Citrate a dangerous good for shipping?
Sodium Citrate is generally not regulated as a dangerous good for road, sea or air transport. The Safety Data Sheet for the grade shipped is the reference used when booking freight.
Which standards apply to Sodium Citrate?
Commonly referenced standards include FCC, USP Sodium Citrate, Ph. Eur. / BP Sodium Citrate, JECFA Trisodium citrate, INS 331(iii). Tell us which standard your application or market requires and we will confirm a grade that meets it.
How is Sodium Citrate packed for export?
Common export packaging for Sodium Citrate includes 25 kg net PE bags or PE-coated multi-wall paper bags; 1,000 kg big bags with PE inner liner. Tell us your preferred packaging and we will confirm what is available for your grade and volume.
Can I get the TDS, SDS or COA for Sodium Citrate?
Yes — request them on this page. We send the documents that apply to the specific grade you are evaluating; a Certificate of Analysis is batch-specific and issued where applicable.
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