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Product Name: Zinc Methionine Sulfate
Chemical Family: Organometallic compound
Molecular Formula: C5H11NO2S·ZnSO4
CAS Number: 56329-42-1
Synonyms: Bis(L-methionine)zinc sulfate monohydrate
Recommended Use: Nutritional supplement for animal feed
Manufacturer Information: Name, address, emergency phone number, and e-mail contact provided by manufacturer or supplier on shipment label
Emergency Telephone: Available through manufacturer, local poison control, or HAZMAT
Classification: Not classified as a hazardous substance under GHS criteria for most uses, but direct contact may cause irritation
Potential Health Effects: May irritate skin, eyes, or lungs if dust is inhaled or comes in contact with mucous membranes; harmful if swallowed in large quantities
Signal Word: Warning
GHS Label Elements: Exclamation mark symbol
Acute Toxicity: Low for most exposure routes
Chronic Effects: Prolonged exposure to high doses in feed or as dust can result in gastrointestinal disturbances or mild respiratory irritation
Chemical Name: Zinc Methionine Sulfate
Percent Composition: 98–99% active ingredient
Other Components: Trace moisture and minor by-products due to manufacturing process
Impurities: Typical heavy metal impurities less than 10 ppm (lead, cadmium, mercury) as controlled by feed additive guidelines
Eye Contact: Rinse with plenty of water, hold eyelids open, seek medical attention if irritation persists
Skin Contact: Remove contaminated clothing, wash skin with mild soap and water, seek medical attention if rash or irritation develops
Inhalation: Move person to fresh air, keep at rest in comfortable position, get medical attention if symptoms develop
Ingestion: Rinse mouth, seek medical advice, do not induce vomiting unless instructed by medical personnel
Most Important Symptoms: Eye, skin, and respiratory tract irritation; large ingestion may result in nausea, vomiting, abdominal cramps
Suitable Extinguishing Media: Water spray, carbon dioxide, dry chemical, foam
Unsuitable Extinguishing Media: None known under normal conditions
Hazards from Combustion: Sulfur oxides, carbon oxides, metal fumes released at high temperatures
Special Protective Equipment: Use standard turnout gear including self-contained breathing apparatus to avoid inhalation of fumes
Advice for Firefighters: Approach from upwind, avoid low-lying areas where dangerous concentrations may accumulate, use water spray to cool containers, prevent runoff from contaminating surface water or ground water
Personal Precautions: Wear NIOSH-approved dust mask, protective gloves, safety goggles; avoid breathing dust
Environmental Precautions: Prevent spillage into drains, water courses, and soil; cover to avoid wind dispersion
Clean-Up Methods: Sweep or vacuum up spills; avoid generation of airborne dust; place material in appropriate waste container for proper disposal; wash area with water to remove residue
Emergency Procedures: Restrict access to area until spill is cleaned; inform local authorities if spill is large or contaminates waterway
Handling: Avoid contact with eyes, skin, and clothing; do not breathe dust or dust clouds; ensure adequate ventilation; do not eat, drink, or smoke in areas of use
Storage Conditions: Keep container tightly closed in cool, dry, and well-ventilated space; avoid direct sunlight, excessive heat, and moisture; store away from incompatible materials such as acids and oxidizing agents
Storage Requirements: Use sealed, labeled containers; stack no more than manufacturer’s recommended number of pallets; keep away from sources of ignition
Incompatibilities: Strong acids, bases, oxidizers
Special Precautions: Maintain good housekeeping and keep work areas clean to avoid dust accumulation
Occupational Exposure Limits: No established OSHA, ACGIH, or NIOSH exposure limits for Zinc Methionine Sulfate specifically; recommended to control workplace exposure below nuisance particulate limits (total dust: 15 mg/m³, respirable dust: 5 mg/m³)
Engineering Controls: Provide local exhaust ventilation at points of dust generation; use process enclosures where possible
Personal Protective Equipment: Use impermeable gloves (nitrile or latex), safety goggles or face shield, lab coat or protective clothing
Respiratory Protection: Approved dust mask or respirator if handling generates dust above recommended levels
Hygiene Measures: Wash hands before eating, drinking, or smoking; shower and change clothes after handling
Environmental Controls: Implement measures to avoid release into the environment
Appearance: White to light yellow crystalline powder
Odor: Mild, characteristic amino acid odor
Odor Threshold: Not determined
pH (1% solution): 4.0–7.0
Melting Point/Freezing Point: Approximately 220°C (decomposes)
Boiling Point: Not applicable
Flash Point: Not flammable under normal conditions
Evaporation Rate: Not applicable
Flammability: Not classified as flammable
Explosive Limits: Not applicable
Vapor Pressure: Negligible at room temperature
Vapor Density: Not applicable
Relative Density: 1.9–2.2 g/cm³
Solubility in Water: Soluble
Partition Coefficient (n-octanol/water): Not determined
Auto-ignition Temperature: Not self-igniting
Decomposition Temperature: Above 220°C
Viscosity: Not applicable
Bulk Density: 0.55–0.70 g/cm³
Chemical Stability: Stable under recommended handling and storage conditions
Reactivity: Non-reactive in ordinary conditions of use and storage
Possible Hazardous Reactions: May react with acids, generating sulfur dioxide or hydrogen sulfide gas
Conditions to Avoid: Excess moisture, high temperature, strong oxidizers, acids or bases
Incompatible Materials: Acids, strong oxidizers, and bases
Decomposition Products: Produces metal oxides, sulfur oxides, and carbon oxides at high temperatures
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Acute Toxicity Data: Oral LD50 (rat) estimated > 2000 mg/kg; no significant acute inhalation or dermal hazard reported
Eye Effects: May cause mild to moderate irritation
Skin Effects: Prolonged or repeated exposure may result in mild irritation
Inhalation: High concentrations of dust can irritate respiratory system
Ingestion: Large amounts can lead to gastrointestinal complaints (nausea, vomiting, diarrhea)
Chronic Effects: Repeated and prolonged exposure may aggravate existing skin or respiratory conditions
Sensitization: No reliable reports of skin or respiratory sensitization
Carcinogenicity: Not listed as carcinogen by OSHA, IARC, NTP
Other Data: No mutagenic, teratogenic, or reproductive effects noted at levels encountered in animal feed applications
Ecotoxicity: Potentially toxic to aquatic life at high soil and water concentrations due to zinc; methionine sulfate portion readily biodegrades
Persistence and Degradability: Organic portion degrades in the environment under aerobic conditions; sulfate ion and zinc persist
Bioaccumulation Potential: Zinc can accumulate in organisms over time; methionine component does not bioaccumulate
Mobility in Soil: Zinc tends to bind strongly to soil particles but may migrate in sandy or acidic conditions
Aquatic Toxicity Data: LC50 (fish): zinc salts 0.3–2 mg/L, depending on species
Other Adverse Effects: Avoid release to surface waters, ditches, or sewers to prevent possible ecological disruption
Waste Disposal Methods: Follow all applicable local, state, and federal regulations for disposal; do not dispose in household trash or flush into drains; contact licensed waste disposal contractor if needed
Contaminated Packaging: Rinse empty containers, dispose of rinse water as hazardous waste if contaminated; recycle or dispose of packaging according to official regulations
Special Precautions: Avoid uncontrolled release to environment; keep records of waste transfer for regulatory compliance
Physical Treatment: Can be landfilled if allowed by local authorities but use care to avoid environmental exposure
UN Number: Not regulated for transport under UN, IMDG, IATA, or DOT in most forms
Proper Shipping Name: Zinc Methionine Sulfate
Transport Hazard Class: Not classified as a hazardous material
Packing Group: Not applicable
Environmental Hazards: Not designated as marine pollutant
Transport in Bulk: Not regulated under Annex II of MARPOL or IBC Code
Special Precautions for Transport: Protect from water and moisture during transportation; ensure integrity of packaging to prevent leaks
OSHA Status: Considered non-hazardous for routine occupational exposure; handle using general safety precautions
EPA SARA Title III: Not listed under Section 313 (Toxic Release Inventory)
TSCA Inventory: All components listed or exempt
Canada WHMIS: Not classified as hazardous
EU Regulations: Not classified as a hazardous substance under current REACH or CLP regulations; uses allowed as animal feed additive per EC directives
Other Regulatory Information: Product labeling and safety warnings in accordance with GHS and country-specific requirements
