Product Name: Sodium 3-Mercaptopropanesulphonate
Chemical Formula: C3H7NaO3S2
CAS Number: 17636-10-1
Synonyms: 3-Mercaptopropanesulfonic acid sodium salt, Sodium 3-mercapto-1-propanesulfonate
Recommended Use: Electroplating additive, chemical synthesis intermediate
Supplier Information: Name, address, and emergency contact numbers for supplier/manufacturer
Emergency Telephone: 24-hour help line provided by supplier or national response team
Restrictive Use: Industrial purposes only, not intended for household applications or food processing
GHS Classification: Eye irritation (Category 2A), Skin irritation (Category 2), Specific target organ toxicity - single exposure (Category 3)
Signal Word: Warning
Pictograms: Exclamation mark
Hazard Statements: Causes skin and eye irritation, prolonged inhalation may cause respiratory discomfort, may cause digestive tract irritation if swallowed
Precautionary Statements: Avoid contact with skin, eyes, and clothing; avoid inhalation of dust or vapors; wear protective equipment such as gloves, goggles, face mask
Potential Health Effects: Touching material may cause redness or itching of skin; eye entry results in watering, burning, and temporary vision distortion; accidental ingestion causes nausea and stomach pain; dust and fumes may affect throat and nose
Chemical Identity: Sodium 3-Mercaptopropanesulphonate
Concentration: 98–100%
Impurities: May contain minimal residual starting materials or process stabilizers, less than one percent each
Molecular Weight: 178.21 g/mol
EINECS Number: 241-591-2
Relevant Components: No other significant hazardous components present
General Advice: Remove contaminated clothing, rinse exposed area thoroughly
If Inhaled: Remove individual to fresh air, provide artificial respiration if necessary, seek immediate medical attention for persistent cough or discomfort
If on Skin: Wash area with plenty of soap and water, remove contaminated clothing or shoes and launder before re-use, seek medical advice for irritation or redness
If in Eyes: Rinse cautiously with water for several minutes, remove contact lenses if present, continue rinsing and get medical help if discomfort continues
If Swallowed: Rinse mouth, do not induce vomiting, call poison center or doctor
Suitable Extinguishing Media: Water spray, dry chemical, carbon dioxide, alcohol-resistant foam
Specific Hazards: May generate hazardous gases such as sulfur oxides and sodium oxides on decomposition
Protective Equipment: Wear self-contained breathing apparatus and protective clothing to prevent exposure
Special Procedures: Remove containers from fire area if safe, prevent runoff into sewers or waterways, use water spray to cool containers exposed to flames
Explosion Hazard: No known explosion hazards, though dust clouds may present minor risk
Personal Precautions: Evacuate unprotected personnel, avoid breathing dust, ensure adequate ventilation, use respirator and gloves
Environmental Precautions: Prevent material from entering drains, surface water, or groundwater, avoid soil contamination
Cleanup Methods: Sweep or vacuum up spill using tools that minimize dust, collect and transfer to sealed waste container, wash spill site after removal
Decontamination: Wash area thoroughly with water and detergent, dispose of cleaning material as hazardous waste
Reporting: Notify authorities if significant quantity enters environment or water systems
Safe Handling Tips: Handle in well-ventilated workspaces, avoid creating dust, keep containers tightly closed when not in use, use spark-proof tools
Storage Conditions: Store in cool, dry, well-ventilated area away from heat and incompatible substances such as acids and oxidizers
Separation: Keep away from foods, feeds, and drinking water sources, segregate from strong acids or bases
Container Requirements: Use containers built from compatible materials, label clearly
Spill Preparedness: Maintain spill cleanup supplies and procedure notice in storage areas
Exposure Limits: No established OSHA, ACGIH, or NIOSH occupational exposure limits
Engineering Controls: Use local exhaust ventilation, install eyewash stations and safety showers in workspace
Personal Protective Equipment: Chemical-resistance gloves, protective goggles, face shield, long-sleeved lab coat or apron, NIOSH-approved respiratory protection for dust-generating tasks
Hygiene Measures: Wash hands thoroughly after handling, avoid eating or drinking while working, remove PPE immediately after use
Appearance: White or off-white crystalline powder
Odor: Distinct mercaptan or sulfurous smell
pH Value (1% solution): Approximately 7–9
Melting Point: Decomposes before melting, typically above 250°C
Boiling Point: Not applicable (decomposes)
Solubility in Water: Easily soluble
Vapor Pressure: Not significant at room temperature
Density: About 1.5 g/cm³
Partition Coefficient: Not available
Auto-ignition Temperature: No data
Viscosity: Not applicable (solid)
Chemical Stability: Stable under normal temperatures and pressure
Conditions to Avoid: Exposure to moisture, heats above 250°C, incompatible chemicals
Materials to Avoid: Strong oxidizing agents, acids, heavy metal salts
Hazardous Decomposition Products: Sulfur oxides, carbon oxides, sodium oxides, hydrogen sulfide under fire/stress conditions
Polymerization: Does not polymerize under standard conditions
Potential Acute Effects: Irritation to skin, eyes, mucous membranes from direct contact or inhalation
Oral Toxicity: Low acute toxicity, but ingestion may cause gastrointestinal upset
Inhalation Toxicity: May irritate upper respiratory tract if dust inhaled
Dermal Toxicity: Prolonged or repeated contact can cause irritation and sensitization
Chronic Effects: No long-term carcinogenicity or reproductive effects documented in available literature, irritation most likely outcome
Target Organs: Eyes, skin, respiratory tract
Sensitization: Not classified as a dermal sensitizer in standard animal tests
Aquatic Toxicity: Not acutely toxic to aquatic life at low concentrations, but can be harmful in large spills
Persistence and Degradability: Degrades slowly by bacterial action in soil and water, persistence depends on local environment
Bioaccumulation: Unlikely to bioaccumulate based on chemical structure and solubility
Mobility in Soil: Mobile due to high water solubility, poses some risk to aquatic systems if uncontrolled releases occur
Other Adverse Effects: High concentrations may impact biological oxygen demand and nutrient cycles in water
Waste Disposal Methods: Dispose of in accordance with local, regional, national, and international regulations, use licensed hazardous waste processor
Packaging Disposal: Empty containers may contain residues, follow safe disposal practices as for full product
Do Not: Release to environment, landfill without treatment, mix with incompatible waste streams
Special Precautions: Follow chemical safety data and facility protocols, consult environmental authorities if needed
UN Number: Not classified as dangerous goods under UN transport regulations
Proper Shipping Name: Sodium 3-Mercaptopropanesulphonate
Transport Hazard Class: Not applicable
Packing Group: Not applicable
Environmental hazards: Not marine pollutant
Bulk Transport: Follow general chemical cargo procedures
Additional Instructions: Prevent accidental spillage in transit, secure packaging to prevent leaks or rupture
Inventory Listings: Listed in major international chemical inventories (TSCA, EINECS/ELINCS, DSL, AICS)
Labeling Requirements: Must display chemical name, hazards, and first aid guidance
Workplace Regulations: Subject to Occupational Safety and Health standards for handling chemicals; industrial hygiene recommendations must be followed
Environmental Regulations: Chemical may be subject to effluent and emission limits in some countries; check local waste water management rules
Reporting Requirements: Spills or releases over reportable quantities (set by jurisdiction) must be reported to authorities
SARA/REACH/PROP 65: Not specifically listed under US SARA, not expected to contain substances subject to REACH or Proposition 65
