Product Name: Dimercapto-1 Propanesulfonic Acid Salt Monohydrate
Synonyms: DMPS, Unithiol Monohydrate
CAS Number: 17716-18-0
Recommended Use: Heavy metal chelation agent
Manufacturer: [Company name and contact details]
Emergency Contact: [24h phone number or poison control]
GHS Classification: Acute toxicity (oral, dermal, inhalation), Eye irritation, Skin sensitization
Signal Word: Warning
Hazard Statements: Harmful if swallowed, causes eye irritation, may cause allergic skin reactions, may cause respiratory discomfort
Precautionary Statements: Avoid contact with skin and eyes, wash hands thoroughly after handling, avoid breathing dust, use only outdoors or in a well-ventilated area
Hazard Symbols: Exclamation mark
Environmental Hazards: Harmful to aquatic life, avoid release into environment
Chemical Name: 2,3-Dimercapto-1-propanesulfonic acid, sodium salt, monohydrate
Common Name: DMPS sodium salt monohydrate
CAS Number: 17716-18-0
Concentration: ≥ 98% by weight
Impurities: Inorganic sodium salts, moisture content ≤ 2%
Eye Contact: Rinse immediately with plenty of water, remove contact lenses, continue rinsing for at least 15 minutes, seek medical attention if irritation persists
Skin Contact: Remove contaminated clothing, wash skin with soap and water, seek medical advice for allergic reactions or if irritation develops
Inhalation: Move to fresh air, keep at rest in a position comfortable for breathing, seek medical advice if symptoms of respiratory irritation appear
Ingestion: Rinse mouth, do not induce vomiting, drink water if conscious, get medical attention as soon as possible
Most Important Symptoms: Irritation, allergic symptoms including rash or difficulty breathing, nausea if ingested
Immediate Medical Attention: Indicated for severe exposures or symptoms, show label or packaging if available
Suitable Extinguishing Media: Water spray, dry chemical, foam, carbon dioxide
Unsuitable Media: Strong water jets—risk of contamination spread
Hazards in Fire: Sulfur oxides, carbon oxides, sodium compounds, toxic fumes may form
Special Equipment: Self-contained breathing apparatus, full protective gear
Specific Procedures: Move containers from fire area if safe, avoid inhaling fumes, contain firefighting water
Explosion Risk: Not known to be explosive under normal conditions
Personal Precautions: Avoid inhalation, skin and eye contact, use protective equipment, evacuate unnecessary personnel
Environmental Precautions: Prevent entry to sewers and waterways, notify authorities of large spills
Clean-Up Methods: Sweep up material without generating dust, collect in suitable sealed containers, ventilate area, wash spill site after pickup
Waste Disposal: Dispose in accordance with local, regional, national regulations
Handling: Use with adequate ventilation, wear protective gloves and eye protection, handle away from incompatible materials, avoid releasing dust
Storage Conditions: Store in tightly closed containers, dry, cool, well-ventilated area, protect from light, store away from acids, oxidizers, sources of ignition
Special Storage Requirements: Limit humidity exposure, segregate from food and animal feed
Packaging: Use suitable resistant containers, clearly labeled
Engineering Controls: Safety showers, eye-wash stations, local exhaust ventilation
Respiratory Protection: NIOSH or EN approved dust mask or respirator for high concentrations
Eye Protection: Chemical safety goggles, face shield for splashing risk
Hand Protection: Chemical-resistant gloves (nitrile, neoprene, butyl rubber)
Skin Protection: Protective lab coat or chemical suit
Hygiene Measures: No eating, drinking, or smoking in work area, wash hands after handling
Workplace Exposure Limits: Not established for compound, use particulate limits as reference
Appearance: White to pale yellow crystalline powder
Odor: Slight sulfurous
Odor Threshold: Not determined
pH: Approximately 3.0-6.0 (5% solution in water)
Melting Point/Freezing Point: Decomposes before melting, >200°C
Boiling Point: Not applicable (decomposes)
Flash Point: Not determined
Evaporation Rate: Not applicable
Flammability: Not flammable
Vapor Pressure: Negligible at room temperature
Vapor Density: Not applicable
Solubility in Water: Highly soluble
Partition Coefficient (n-octanol/water): Not available
Auto-ignition Temperature: Not determined
Decomposition Temperature: >200°C
Viscosity: Not applicable (solid)
Chemical Stability: Stable in closed containers under normal storage and handling conditions
Reactivity: Reacts with strong oxidizers and acids
Conditions to Avoid: Exposure to moisture, heat, strong light
Incompatible Materials: Strong oxidizing agents, acids, heavy metal salts
Hazardous Decomposition: Sulfur oxides, carbon monoxide, carbon dioxide, sodium compounds
Hazardous Polymerization: Does not occur
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Acute Effects: Harmful if swallowed, may irritate skin and eyes, respiratory irritation on dust exposure
Chronic Effects: May cause sensitization with repeated/prolonged contact
Toxicity Data: LD50 (oral, rat): 200-1000 mg/kg
Symptoms: Skin rash, nausea, eye redness, coughing, possible allergic reactions
Carcinogenicity: No data suggesting carcinogenic potential
Mutagenicity: Not mutagenic in standard tests
Reproductive Toxicity: No specific data, adequate precautions advised
Medical Conditions Aggravated: Sensitive skin, respiratory conditions, known allergies
Environmental Fate: Water soluble, may leach from soil to water systems
Aquatic Toxicity: Harmful to aquatic life, avoid release to surface waters
Persistence/Degradability: Limited environmental degradation expected, long-term effects not fully studied
Bioaccumulation: Low bioaccumulation potential
Mobility: Likely to disperse in water
Other Environmental Data: Significant releases can disrupt biological treatment in sewage plants
Waste Methods: Dispose of material and container at hazardous or special waste collection points, follow local, national, and regional regulations
Packaging Disposal: Empty containers must be triple rinsed, not reused for other chemicals, dispose as hazardous waste
Considerations: Do not allow material or wash water to enter drains, watercourses, or soil
Recycling/Incineration: Incineration in controlled facilities recommended where permitted
UN Number: Not classified as hazardous for transport
Proper Shipping Name: Not regulated
Transport Hazard Class: Non-hazardous
Packing Group: Not applicable
Environmental Hazards: Harmful to aquatic life, handle with care to prevent spills
Special Precautions: Protect packaging from damage, keep sealed during transport, avoid high temperatures and moisture
Bulk Transport: Not subject to ADR, IMDG, IATA regulatory requirements
Labeling Requirement: Use GHS-compliant hazard symbols and statements
SARA Title III: Not subject to reporting under SARA 302/304/311/312/313
TSCA Status: Listed or compliant
REACH Status: Registration or notification might apply in the EU
WHMIS Classification: D2B - Toxic Material
OSHA: Hazardous; use per chemical hygiene practices
Other Regulations: Subject to relevant national and local chemical safety and health standards
Restrictions: Industrial and laboratory use only, not for human or veterinary pharmaceuticals without regulatory approval
