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.

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Category: Nutrient Supplements Tags: Buffering agent, Food additive, Pharmaceutical industry, Sodium Citrate, Trisodium Citrate

Description

Table of Contents

Sodium Citrate

Primary Uses

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.

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.

Cosmetics and Personal Care

Functions as a pH adjuster and chelating agent in skincare and haircare products.

Secondary Uses

Industrial Applications

Used in detergents and cleaning agents as a water softener and pH buffer.
Employed in photographic processing as a buffering agent.

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