Material Safety Data Sheet for Selenium Amino Acid Chelate

Identification

Product Name: Selenium Amino Acid Chelate
Synonyms: Organic selenium complex, selenium chelate
Product Use: Nutritional supplements, animal feed additive, food fortification
Supplier: Chemical distributors or pharmaceutical manufacturers supplying minerals and trace elements
Emergency Contact: Local poison control or supplier’s emergency hotline
Chemical Family: Trace mineral amino acid complexes
Molecular Formula: Dependent on amino acid chelate composition, commonly C5H12N2O2Se for selenomethionine chelate
CAS Number: Usually 1464-42-2 for selenomethionine (may vary for specific chelate)
Recommended Restrictions: Not for direct human consumption as a raw material; consult supplier’s guidelines.

Hazard Identification

GHS Classification: Acute toxicity (oral, category 3)
Signal Word: Danger
Hazard Statements: Toxic if swallowed; May cause skin and eye irritation; Prolonged inhalation might cause respiratory discomfort.
Pictograms: Skull and crossbones symbol
Precautionary Statements: Avoid breathing dust; Wash thoroughly after handling; Do not eat or drink when using this product; Wear protective gloves, clothing, and eye protection.
Acute Effects: Selenium compounds in excess can cause garlic breath, gastrointestinal disturbances, and in severe cases, nervous system effects.

Composition / Information on Ingredients

Main Ingredient: Selenium-amino acid chelate
Concentration: Selenium content typically in the range of 0.1% – 1% by weight
Impurities: May contain trace amino acids, carbohydrates, moisture, inert excipients depending on production
Other Components: Carrier materials, processing aids, or stabilizers present in very low quantities
Relevant Exposure Limits: Refer to regulatory bodies (OSHA, NIOSH) for selenium compounds.

First Aid Measures

Inhalation: Move affected person to fresh air; seek medical help if symptoms like coughing or difficulty breathing develop.
Skin Contact: Wash affected area thoroughly with soap and water; remove contaminated clothing; seek medical advice if irritation develops.
Eye Contact: Rinse immediately with gentle stream of clean running water for at least 15 minutes; consult a healthcare provider.
Ingestion: Do not induce vomiting; rinse mouth with water if victim is conscious; get immediate medical attention.
Symptoms: Headache, fatigue, stomach upset, metallic taste, shortness of breath or dizziness signal toxicity or allergic response.

Fire-Fighting Measures

Suitable Extinguishing Media: Use carbon dioxide, dry chemical powder, foam, or water spray on surrounding fire.
Specific Hazards: Selenium fumes might be released; toxic and irritating vapors could form during combustion.
Protective Equipment for Firefighters: Self-contained breathing apparatus and full protective clothing required.
Firefighting Instructions: Move containers from fire area; use water spray to cool containers; avoid run-off contamination.

Accidental Release Measures

Personal Precautions: Wear personal protective equipment including gloves, dust mask, and safety glasses.
Spill Response: Ventilate area; avoid creating dust; use appropriate tools to collect spilled product and place in labeled container.
Cleaning Methods: Sweep spills up carefully, avoid raising dust; wash spill area with water after material pickup is complete.
Environmental Precautions: Prevent large quantities from entering drains, surface water, or soil.

Handling and Storage

Handling: Only handle product with appropriate safety equipment; do not eat, drink or smoke nearby; wash hands thoroughly after use.
Storage Conditions: Store in tightly-sealed original packaging in a cool, dry, well-ventilated place, away from strong acids, oxidizers, and direct sunlight.
Storage Life: Use within shelf life as provided by manufacturer—loss of potency or degradation possible after prolonged storage.
Incompatible Materials: Strong acids, bases, oxidizing agents.

Exposure Controls and Personal Protection

Engineering Controls: Operate in a local exhaust or well-ventilated area; use fume hoods if dust generation is likely.
Personal Protective Equipment: Safety goggles, lab coat, chemical-resistant gloves, and NIOSH-approved dust respirator recommended.
Occupational Exposure Limits: Selenium OSHA PEL: 0.2 mg/m³ (as Se) TWA; ACGIH TLV: 0.2 mg/m³
Hygiene Measures: Avoid contact with skin or eyes; do not inhale dust; practice good hygiene during and after handling.

Physical and Chemical Properties

Appearance: Powder or crystalline solid; color varies (white to light brown)
Odor: Faint, characteristic, sometimes metallic or garlic-like with high selenium concentrations
pH: 4.5 - 7.5 (typically in aqueous solution)
Melting Point: Specific value varies with chelate composition
Solubility: Typically water-soluble, depending on the amino acid
Boiling Point: Decomposes before boiling
Density: About 1.1 - 1.5 g/cm³
Vapor Pressure: Not applicable (non-volatile solid)
Flammability: Not classified as flammable, but process dust may pose explosion risk if mixed with air.

Stability and Reactivity

Chemical Stability: Stable at room temperature under recommended storage conditions
Reactivity: May react with strong oxidizing or reducing agents
Conditions to Avoid: Exposure to high heat, strong acids, bases, and oxidative chemicals
Hazardous Decomposition Products: Selenium fumes, oxides of carbon, nitrogen oxides arising from thermal decomposition
Polymerization: Does not occur under standard conditions.

Toxicological Information

Acute Toxicity: Selenium compounds can be acutely toxic if ingested above recommended limits; LD50 (oral, rat) varies but generally very low
Ingestion Effects: Nausea, vomiting, abdominal pain, diarrhea, garlic breath odor
Inhalation Effects: Cough, respiratory discomfort, metallic taste, dizziness
Chronic Exposure: Hair and nail brittleness, skin rashes, central nervous system symptoms with long-term overdose
Sensitization: May cause allergic reactions in sensitive individuals
Mutagenicity/Carcinogenicity: No evidence for mutagenic or carcinogenic effects in humans at nutritional doses; data limited for high, chronic exposures.

Ecological Information

Ecotoxicity: Selenium compounds in water bodies can be harmful to aquatic life, bioaccumulate in fish and birds
Mobility: Soluble forms of selenium may migrate through soil and contaminate groundwater
Persistence/Degradability: Selenium persists in the environment; certain microorganisms may metabolize it slowly
Bioaccumulation Potential: High for aquatic organisms; plants and animals can concentrate selenium
Environmental Precautions: Prevent large spills and runoff into natural water systems to protect aquatic ecosystems.

Disposal Considerations

Disposal Methods: Dispose waste according to local, regional, and national hazardous waste regulations; use approved chemical waste containers
Contaminated Packaging: Rinse containers thoroughly, dispose or recycle as hazardous material depending on legislation
Special Precautions: Do not release into sewage systems or uncontrolled environment; consult municipality for safe disposal practices.

Transport Information

UN Number: Variable—refer to specific selenium compound for shipping
Shipping Name: Selenium compound, organic
Transport Hazard Class: 6.1 (Toxic substances, if applicable)
Packing Group: III (for moderate danger if labeled as toxic substance)
Labeling Requirements: Toxic substance label may be required; check regulations for exceptions
Special Precautions: Ensure packaging is secure, sealed, and properly labeled in compliance with transport authorities.

Regulatory Information

Inventory Listings: Listed under major chemical inventories (TSCA, REACH, DSL, AICS, etc.) depending on the country
Regulatory Status: Subject to workplace and environmental reporting requirements if handled in bulk; Selenium amino acid chelates permitted for use in feed, supplements, or food only within approved concentration ranges
Other Relevant Regulations: SARA Title III, CERCLA, California Proposition 65 may apply for selenium compounds; country-specific occupational and environmental controls will dictate safe management.
Worker Training: Employees handling bulk selenium compounds need specific hazard training and personal protective equipment per OSHA or workplace safety guidelines.