Product Name: Methanesulfonic Acid, Zinc Salt
Chemical Formula: C2H6O6S2Zn
Synonyms: Zinc methanesulfonate, Zinc bis(methanesulfonate)
Chemical Family: Sulfonic acid salts
Use: Electroplating, battery electrolytes, pharmaceutical intermediate, catalyst for organic synthesis
Supplier: Detailed company name, address, and phone number of the distributor or manufacturer should go here, including a technical contact number for emergencies.
CAS Number: 53403-19-3
Emergency Number: Local and international emergency contact provided by the manufacturer.
GHS Classification: Skin Corrosion/Irritation Category 2, Eye Damage/Irritation Category 2A, Acute Toxicity Category 4 (oral)
Hazard Statements: Causes skin and serious eye irritation, may be harmful if swallowed
Signal Word: Warning
Precautionary Statements: Avoid contact with eyes, skin, and clothing; wash thoroughly after handling; use personal protective equipment as required; do not eat, drink, or smoke while using this product
Pictograms: Corrosive, exclamation mark
Target Organs: Eyes, skin, respiratory tract, gastrointestinal system
Chemical: Methanesulfonic Acid, Zinc Salt
Concentration: 98–100% (industrial grade)
Impurities: Trace amounts of methanesulfonic acid, water, possibly minor levels of zinc oxide or sulfate depending on synthesis
CAS Number: 53403-19-3
Molecular Weight: 279.59 g/mol
Ingredient Type: Single substance, not a mixture or blend
Other Identifiers: None relevant to safety compliance
Inhalation: Move affected person to fresh air, keep at rest, monitor for respiratory symptoms, consult physician for persistent discomfort
Skin Contact: Remove contaminated clothing, rinse skin with plenty of water and soap for 15 minutes, seek medical attention for irritation or blistering
Eye Contact: Flush eyes immediately with water for at least 15 minutes, lift upper and lower eyelids occasionally, seek prompt medical care
Ingestion: Rinse mouth thoroughly with water, do not induce vomiting, give water to drink if person is conscious, seek medical attention
Notes for Physician: Treat symptomatically, monitor for chemical burns, respiratory symptoms, or systemic toxicity
Suitable Extinguishing Media: Water spray, dry chemical, foam, carbon dioxide
Unsuitable Media: Do not use water jet as it might spread chemical
Specific Hazards: Product does not burn but may emit toxic fumes of sulfur oxides and zinc compounds under fire conditions
Protective Equipment: Firefighters should wear full protective gear including self-contained breathing apparatus
Special Procedures: Move containers from fire area if safe, cool fire-exposed surfaces with water spray to prevent decomposition
Personal Precautions: Avoid breathing dust or fumes, avoid contact with skin and eyes, wear suitable protective clothing and equipment including gloves, goggles, and mask
Environmental Precautions: Prevent entry into sewers, drains, and waterways, notify authorities in case of large spills
Methods for Clean-Up: Sweep up spilled material using non-sparking tools, avoid generating dust, transfer to labeled containers for disposal, ventilate area thoroughly after clean-up completed
Decontamination: Wash spill area with water and neutralizing chemical such as sodium bicarbonate, collect rinsate for disposal
Handling: Work in well-ventilated area, avoid dust formation, avoid unsafe storage near food or drink, wash hands thoroughly after handling
Storage: Store in original tightly closed container, in a cool, dry, well-ventilated area away from incompatible substances such as strong oxidizers or acids; segregate from food and feedstuffs
Other Precautions: Maintain good housekeeping, label all storage and working containers, avoid long-term exposure to moisture to prevent degradation
Engineering Controls: Use chemical fume hood or local exhaust to control airborne concentrations, provide eye wash stations and safety showers where stored or utilized
Control Parameters: No established occupational exposure limits for this compound; general nuisance dust limit of 10 mg/m3 (total) can serve as guidance
Personal Protection: Chemical resistant gloves (nitrile or neoprene), safety goggles or face shield, lab coat, respiratory protection (particulate filter mask) if dust or aerosol risk exists
Hygiene Measures: Never eat, drink, or smoke in areas where chemical is handled, wash hands before breaks and after finishing work, keep contaminated clothing away from clean areas
Appearance: White crystalline or powder solid
Odor: Faint, slightly acidic
pH: 2–4 (aqueous solution, 1%)
Melting Point: Decomposes above 200°C
Boiling Point: Not applicable, decomposes before boiling
Density: 2.1–2.5 g/cm³
Solubility: Freely soluble in water, slightly soluble in alcohols
Vapor Pressure: Negligible at ambient temperature
Flash Point: Not flammable
Partition Coefficient: Not determined
Viscosity: Not applicable (solid)
Chemical Stability: Stable under recommended storage conditions, breaks down on contact with water into methanesulfonic acid and zinc ions
Reactivity: Non-reactive under normal use but may react with strong oxidizers or concentrated bases
Hazardous Decomposition: Emits toxic sulfur oxides, zinc oxide fumes above decomposition temperature
Conditions to Avoid: Moisture, excessive heat, incompatible chemicals
Incompatible Materials: Strong oxidizers, strong acids or alkalis, finely divided metals
Acute Toxicity (Oral, Rat): Expected LD50: 500–2000 mg/kg
Skin Corrosion/Irritation: Causes skin irritation, may produce redness and swelling on prolonged exposure
Serious Eye Damage/Irritation: Causes severe eye irritation, redness, pain, possible corneal injury
Respiratory Sensitization: Dust may cause irritation to nasal passages and throat
Carcinogenicity: Not listed by IARC, NTP, or OSHA as carcinogen
Mutagenicity: No data available
Reproductive Toxicity: No data available
Chronic Effects: Repeated or prolonged exposure can aggravate skin, eyes, and underlying tissues, with potential for dermatitis or respiratory effects depending on exposure conditions
Ecotoxicity: Zinc is toxic to aquatic organisms; avoid direct discharge to aquatic environments
Persistence and Degradability: Expected to dissociate in water to zinc ions and methanesulfonate, which have varying rates of environmental breakdown
Bioaccumulation Potential: Zinc may bioaccumulate in aquatic life
Mobility in Soil: High water solubility, can migrate through soil and contaminate groundwater
Other Adverse Effects: Methanesulfonic acid component typically degrades quickly; zinc poses a long-term pollutant risk if allowed to enter soil or water
Disposal Methods: Dispose of via licensed hazardous waste contractor, incineration or landfill permitted for hazardous substances in compliance with local, state, and federal regulations, do not discharge to sewers or natural waters
Contaminated Packaging: Empty containers must be triple rinsed, treated as hazardous waste or recycled where permitted
Advice: Consult environmental authority or waste management company for recommended disposal method
UN Number: Not assigned
UN Proper Shipping Name: Not regulated as dangerous under international transport regulations for most amounts
Class: Not classified
Packing Group: Not applicable
Label: No special labeling required for ground shipment, consult relevant authority for air or sea
Special Precautions: Package securely to prevent release during transport, ensure labeling remains legible and container integrity maintained
EU Regulation: Not classified as hazardous under Regulation (EC) No 1272/2008 for most industrial purposes; observe workplace limits for zinc compounds
US Federal Regulations: Not listed under major federal hazardous chemicals registries; subject to reporting if released in excessive quantities (CERCLA zinc threshold)
OSHA: Not specifically regulated, general requirements for safe workplace apply
Canada: DSL-listed substance
Other National Lists: Included on chemical inventories in many jurisdictions; local environmental controls on zinc releases enforced in many states and provinces
