Sodium Citrate

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Sodium Citrate is the sodium salt of citric acid, available as a white, crystalline powder or granules. It functions primarily as a buffering agent, acidity regulator, and sequestrant in food, pharmaceutical, and industrial applications. It helps maintain pH stability, enhances flavor, and prevents metal ion-induced spoilage. The 25kg packaging is typical for bulk industrial or food processing use.

Description

Sodium Citrate

Primary Uses 

  1. Food & Beverage Industry
  • Acts as a buffering agent to maintain stable pH in beverages, dairy products, and processed foods.
  • Functions as a sequestrant to bind metal ions, preventing oxidation and spoilage.
  • Used as a flavoring agent to impart a mild tartness in soft drinks, jams, and confections.
  • Serves as an emulsifier in processed cheese and dairy products for smooth texture.
  1. Pharmaceuticals
  • Used as an alkalizing agent in oral and injectable formulations.
  • Included in effervescent tablets and powders for controlled acidity.
  • Acts as an anticoagulant in blood collection tubes by chelating calcium ions.
  1. Cosmetics and Personal Care
  • Functions as a pH adjuster and chelating agent in skincare and haircare products.

Secondary Uses

  1. Industrial Applications
  • Used in detergents and cleaning agents as a water softener and pH buffer.
  • Employed in photographic processing as a buffering agent.
  1. Laboratory & Analytical
  • Utilized as a buffering agent in biochemical assays and molecular biology protocols.
KEY PRODUCT FEATURES

1. Basic Identification Attributes

  • Chemical Name (IUPAC): Trisodium 2-hydroxypropane-1,2,3-tricarboxylate
  • Common/Trade Name: Sodium Citrate
  • CAS Number: 68-04-2
  • HS Code: 2918.14
  • Synonyms: Trisodium citrate, Sodium citrate tribasic

2. Physical & Chemical Properties

  • Physical State: Powder or granules
  • Color & Odor: White, odorless
  • Solubility: Highly soluble in water
  • pH: Approximately 8.3 (1% aqueous solution)
  • Density: ~1.676 g/cm³

3. Safety & Hazard Attributes

  • GHS Classification: Generally regarded as safe; minimal hazard
  • Toxicity: Low toxicity; safe in intended applications
  • Exposure Limits: No established occupational exposure limits

4. Storage & Handling Attributes

  • Storage Conditions: Store in a cool, dry place in tightly sealed containers away from moisture
  • Container Type: Supplied in sealed 25kg bags or drums
  • Shelf Life: Typically 2–3 years if stored properly
  • Handling Precautions: Avoid dust generation; use dust masks if needed

5. Regulatory & Compliance Attributes

  • Complies with food-grade standards (e.g., FCC, USP, E331)
  • Approved for use by FDA, EFSA, and other international food safety authorities
  • Manufactured in GMP-certified facilities

6. Environmental & Health Impact

  • Biodegradability: Readily biodegradable
  • Ecotoxicity: Low environmental toxicity
  • Bioaccumulation: Not significant
SAFETY HANDLING PRECAUTIONS

Safety Handling Precautions

  • PPE Required: Gloves, goggles, and dust mask recommended during handling
  • Handling Guidelines: Avoid inhalation of dust; work in well-ventilated areas
  • Storage Measures: Keep containers tightly closed and stored in a dry environment

First Aid Measures

  • Inhalation: Move to fresh air; seek medical attention if irritation occurs
  • Skin Contact: Wash with soap and water; seek medical advice if irritation develops
  • Eye Contact: Rinse thoroughly with water for 15 minutes; seek medical help if irritation persists
  • Ingestion: Rinse mouth; seek medical attention if large amounts ingested

Firefighting Measures

  • Fire Hazards: Non-flammable
  • Extinguishing Media: Water spray, foam, dry chemical, or CO₂
  • Special Precautions: Use standard firefighting procedures
  • Hazardous Combustion Products: None known