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Material Safety Data Sheet for Carrageenan

Identification

Product Name: Carrageenan
Chemical Family: Sulfated polysaccharides
Recommended Use: Thickener, stabilizer in food, pharmaceuticals, cosmetics
Supplier Details: Manufacturer's name, address, and phone number on packaging
Emergency Contact: Local poison control or emergency number on label

Hazard Identification

Classification: Not classified as hazardous according to GHS guidelines
Physical Hazards: Fine powder can become a dust explosion hazard under rare circumstances
Health Hazards: Inhalation may irritate respiratory tract, prolonged exposure rarely triggers sensitization, eye contact may lead to mild discomfort, skin contact keeps risk low
Environmental Hazards: Spilled product in large quantities may impact aquatic life due to oxygen consumption during decomposition

Composition / Information on Ingredients

Main Ingredient: Carrageenan (E407/E407a), 100%
Chemical Formula: Variable, typically C24H36O25S2
CAS Number: 9000-07-1
Impurities: May contain trace amounts of potassium, sodium, calcium salts from extraction process
Component Purity: Food-grade or industrial-grade standards available, check labeling

First Aid Measures

Inhalation: Move affected individual to fresh air, monitor for breathing difficulties, seek medical attention if symptoms persist
Eye Contact: Rinse eyes gently with clean water for several minutes, remove contact lenses, medical help if irritation sticks
Skin Contact: Wash with soap and water, remove contaminated clothing
Ingestion: Rinse mouth, drink water, consult health professional if large quantity consumed or symptoms occur
Advice for Physician: Symptomatic treatment, no known antidote required

Fire-Fighting Measures

Suitable Extinguishing Media: Water spray, foam, dry chemical, carbon dioxide
Unsuitable Extinguishing Media: Direct high-pressure water jet may scatter powder
Special Hazards: Products may form hazardous gases like carbon monoxide and carbon dioxide during combustion, dust clouds can explode in rare environments with ignition source
Protective Equipment: Firefighters should use full protective clothing and self-contained breathing apparatus
Special Precautions: Move containers from fire area if safe, avoid inhaling potential fumes

Accidental Release Measures

Personal Precautions: Wear dust mask or respirator, protect eyes and skin
Environmental Precautions: Prevent spill from entering water sources or drains
Containment Methods: Carefully sweep or vacuum spilled material, minimize dust generation
Cleanup Procedures: Collect in sealable bags or containers for reuse or disposal according to local regulations, ventilate area after cleanup, wash floors to remove residue

Handling and Storage

Safe Handling: Minimize dust, use proper local exhaust ventilation, avoid contact with eyes and skin, wash hands before breaks and after use
Storage Conditions: Store in cool, dry location, keep containers tightly sealed to avoid moisture absorption, keep away from strong oxidizers
Incompatible Materials: Strong acids, bases, oxidative chemicals may degrade product
Packaging Materials: Use lined, moisture-resistant bags or drums, label clearly according to use and regulatory requirements

Exposure Controls and Personal Protection

Engineering Controls: Provide adequate local exhaust ventilation, especially in bulk handling or powder dispersion
Personal Protection Equipment (PPE): Dust mask or NIOSH-approved respirator for airborne dust, safety goggles or glasses for eyes, gloves for skin protection
Hygiene Measures: Wash thoroughly after handling, do not eat, drink, or smoke during use
Exposure Limits: No established OSHA or ACGIH exposure limits; dust threshold levels apply, keep concentrations below recommended nuisance dust standards (typically 10 mg/m³ for total dust, 3 mg/m³ for respirable fraction)

Physical and Chemical Properties

Appearance: Off-white to light yellow powder, free-flowing
Odor: None or neutral, slightly marine-like if from seaweed
pH: 6–10 (1% solution in water)
Melting Point: Decomposes without melting at high temperatures above 180°C
Boiling Point: Not applicable
Flash Point: Not flammable under regular storage
Solubility: Swells in cold water, dissolves in hot water, forms gels with certain ions
Density: Approximately 1.3–1.6 g/cm³
Vapor Pressure: Not relevant for solid material
Partition Coefficient: Not determined
Viscosity: Varies by grade and concentration in solution

Stability and Reactivity

Chemical Stability: Stable under recommended storage and normal ambient conditions
Stable Conditions: Avoid high humidity, extreme heat
Reactive With: Strong oxidizers, strong acids, alkalis
Decomposition Products: Thermal breakdown may produce oxides of carbon and sulfur
Polymerization: Does not occur under standard conditions

Toxicological Information

Acute Toxicity: Ingestion studies in rodents show no toxicity at relevant levels, large amounts may cause mild gastrointestinal upset
Eye Effects: May cause irritation in sensitive individuals, not considered corrosive
Skin Effects: Not a sensitizer for most users, some rare reports of mild local reactions after prolonged exposure
Inhalation Effects: High concentrations of airborne dust can irritate respiratory tract
Chronic Effects: Numerous studies show no evidence of carcinogenicity or chronic disease in humans; regulatory authorities recognize carrageenan as safe for food use
Mutagenicity and Carcinogenicity: Not classified as a mutagen or carcinogen under current data
Reproductive Toxicity: Animal studies show no reproductive hazard at expected exposure

Ecological Information

Ecotoxicity: Not expected to bioaccumulate, moderately biodegradable in aquatic and terrestrial systems
Aquatic Impact: High concentrations may deplete oxygen due to breakdown, potentially affecting aquatic organisms
Persistence and Degradability: Natural polysaccharide, breaks down by microbial action
Mobility in Soil: Remains near the surface, limited leaching
Bioaccumulation: Does not concentrate in food chains

Disposal Considerations

Waste Disposal Methods: Dispose in accordance with local, regional, or national regulations; landfilling preferred where permitted, incinerate if required by local rules
Product Recycling: Non-contaminated material can often be reused for non-food applications
Packaging Disposal: Rinse and recycle or dispose packaging based on material and local guidelines

Transport Information

UN Number: Not regulated
Proper Shipping Name: Not classified as dangerous goods
Hazard Class: None assigned
Packing Group: No special requirements
Special Precautions: Use secure, clean packaging to prevent moisture damage or spillage, label according to consignee requirements

Regulatory Information

Global Inventories: Listed on US TSCA, Canada DSL, EU EINECS, Japan ENCS, China IECSC, Australia AICS
Food Safety Standards: GRAS status according to FDA, approved for food use in EU, JECFA/FAO designations
Workplace Regulations: OSHA and EU regulations treat as nuisance dust; follow local workplace hygiene requirements
Labeling: Follow food, cosmetic, or industrial guidelines as needed, hazard labels not required under GHS
Other Regulations: Review country-specific environmental rules for handling and emissions, comply with sector packaging and storage laws