Product Name: Ethanesulfonic Acid Sodium Salt Monohydrate
Chemical Family: Organosulfonic acid salt
CAS Number: 1566-27-0
Synonyms: Sodium 2-ethanesulfonate monohydrate
Recommended Use: Laboratory reagent, buffer component
Manufacturer Information: Supplier address, emergency contact number, and technological support details available on the supplied purchase documentation
Relevant Identified Uses: Used for research and development, preparation of specialized buffers, small-scale synthesis
Classification: Eye irritant (Category 2A), not otherwise classified as hazardous under GHS
Signal Word: Warning
Hazard Statements: Causes serious eye irritation, may cause mild skin reactions, dust inhalation can prompt throat and respiratory discomfort
Pictograms: Exclamation mark for irritant properties
Precautionary Statements: Wear eye/face protection, wash hands after handling, avoid creating dust, use with adequate ventilation
Physical Hazards: May generate dust under normal handling, can aggravate asthma or pulmonary issues
Specific Risk: Splashes or dust exposure in eyes create risk of prolonged discomfort, skin contact might result in dryness
Chemical Name: Sodium ethanesulfonate monohydrate
CAS Number: 1566-27-0
EC Number: 216-358-9
Concentration: Typically 98-100%
Formula: C2H5NaO3S · H2O
Impurities: Trace inorganics, water of hydration
Additives: None reported
Eye Contact: Rinse gently with lukewarm water for several minutes, remove lenses if present, continue rinsing for up to 15 minutes, seek medical help if irritation persists
Skin Contact: Wash affected area with soap and plenty of water, remove compromised clothing, seek medical advice if symptoms appear
Inhalation: Move affected person to clean air, rest in comfortable position, seek attention if symptoms persist
Ingestion: Rinse mouth with water, seek medical attention if feeling unwell, do not induce vomiting unless advised by medical professionals
Most Important Symptoms: Eye redness, watering, mild skin dryness, coughing, possible mild headache from dust inhalation
Notes for Doctors: Treat symptomatically, consider irritation potential
Suitable Extinguishing Media: Use water spray, dry chemical, carbon dioxide, or foam
Unsuitable Extinguishing Media: None identified for small laboratory quantities
Specific Hazards: Product itself does not burn but may produce sulfur oxides and sodium oxides if combusted
Protective Equipment for Firefighters: Full protective gear, self-contained breathing apparatus
Firefighting Precautions: Cool containers exposed to fire with water, avoid inhaling combustion fumes, evacuate unnecessary personnel
Decomposition Products: Sulfur dioxide, sodium oxide fumes, possible acidic vapors
Personal Precautions: Avoid dust generation, use respiratory protection if necessary, wear protective goggles and gloves
Environmental Precautions: Prevent large spills from entering waterways, soil, or drains
Spill Cleanup Methods: Sweep up carefully, avoid raising dust, collect into suitable containers for disposal, wash affected area with water after material removal
Reference to Other Sections: Use information from sections on personal protective equipment and disposal considerations
Emergency Procedures: Evacuate unnecessary personnel, air out enclosed spaces
Handling: Avoid contact with skin, eyes, and clothing, minimize dust creation, only use in well-ventilated areas, do not eat, drink, or smoke while handling
General Hygiene: Wash hands thoroughly after handling, remove contaminated clothing before breaks, use proper containment lids
Storage Conditions: Store in tightly closed containers, keep in dry and cool environment, avoid storing near strong acids, oxidizing agents, or moisture
Incompatibility: Keep away from strong oxidizers, acids, or ammonium salts
Storage Class: Chemical storage, non-combustible solids
Exposure Limits: No specific occupational exposure limits established
Engineering Controls: Work in areas with good ventilation, use chemical fume hood if dust or aerosols likely
Respiratory Protection: Use NIOSH-approved mask in presence of dust
Eye Protection: Safety glasses with side shields or goggles
Hand Protection: Chemical-resistant gloves
Skin Protection: Lab coat or apron, avoid prolonged skin exposure
General Protection: Do not inhale dust or ingest product, launder clothing regularly
Appearance: White to off-white crystalline powder
Odor: Odorless
pH (1% solution): Around 7
Melting Point: Decomposes above 240°C
Boiling Point: Not applicable under atmospheric conditions
Solubility: Soluble in water
Density: Approx. 1.6 g/cm³
Vapor Pressure: Not volatile at room temperature
Evaporation Rate: Not applicable
Partition Coefficient (log Kow): Not determined
Decomposition Temperature: Begins above 240°C with fume generation
Other Properties: Stable under normal conditions, little to no volatility
Chemical Stability: Remains stable under recommended storage conditions
Reactivity: Inert under most laboratory conditions, reacts with strong acids to produce evolved gases
Possible Hazardous Reactions: Violent reaction with oxidizers or strong acids
Conditions to Avoid: High humidity, strong heat, exposure to incompatible substances
Incompatible Materials: Strong acids, strong oxidizing compounds
Hazardous Decomposition Products: Sulfur oxides, sodium oxide fumes produced during heating or burning
Likely Routes of Exposure: Inhalation, skin contact, eye contact, ingestion
Acute Toxicity: Low, not classified as acutely toxic
Skin Corrosion/Irritation: May cause minor skin irritation on prolonged or repeated contact
Serious Eye Damage/Irritation: Causes moderate but reversible eye irritation
Sensitization: No known data supporting allergenicity
Chronic Effects: No documented long-term health issues, monitor for skin dryness with frequent/repeated exposure
Mutagenicity/Carcinogenicity: No evidence of mutagenic or carcinogenic effects based on available data
Other Information: Exposure to dust above recommended concentrations could cause discomfort to respiratory tract
Ecotoxicity: No specific ecotoxicity data available, expected to have low toxicity to aquatic and terrestrial organisms
Persistence and Degradability: Inorganic salt, expected to be persistent but not bioaccumulative
Bioaccumulative Potential: No evidence of bioaccumulation
Mobility in Soil: High solubility in water, potential for mobility depending on environmental conditions
Other Ecological Information: Avoid large discharges into waterways as precaution, seek to minimize surface runoff from laboratories
Waste Treatment Methods: Dispose of in compliance with local, regional, national, and international regulations
Contaminated Packaging: Treat as chemical waste, triple rinse containers before reprocessing or discarding
Waste Codes: Consult local environmental authorities for appropriate waste code
Disposal Recommendation: Do not allow undiluted solutions or product to reach sewer system, incinerate or send for controlled landfill as approved by authorities
UN Number: Not classified as hazardous for transport
UN Proper Shipping Name: Not regulated for transport
Transport Hazard Class: Not regulated
Packing Group: Not applicable
Environmental Hazards: None expected
Special Precautions: Avoid container damage, prevent dust release
Transport Information: Material carried in tightly closed containers, labeled clearly, segregated from incompatible substances during transit
International Inventories: Listed on TSCA (US), EINECS (EU), ENCS (Japan), DSL (Canada)
OSHA Hazard Communication: Not classified as hazardous under OSHA regulations
SARA Title III (Sections 311/312): Not subject to reporting
California Proposition 65: Not listed
REACH Status: Exempted or pre-registered substance
Labeling Requirements: As per GHS for laboratory reagents
Other Standards: Meet requirements set for non-toxic laboratory chemicals
