Identification: Trade name: 2-[2-(2-Hydroxyethoxy)Ethoxy]Ethanol; CAS Number: 112-59-4; Synonyms: Triethylene glycol monomethyl ether; Molecular formula: C8H18O4; Chemical family: Glycol ethers; Common uses include laboratory research, solvent applications, and plasticizer manufacturing; Manufacturer’s name and emergency contact listed on packaging.
Hazard Identification: Skin and eye irritant; Not considered flammable under normal temperature; Inhalation of mist may irritate respiratory system; Prolonged or repeated exposure may defat skin; Symptoms involve redness, itchiness, and mild headaches if large amounts are inhaled or ingested; No evidence of carcinogenicity based on available data; Not classified as highly hazardous by GHS standards.
Composition / Information on Ingredients: Ingredient: 2-[2-(2-Hydroxyethoxy)Ethoxy]Ethanol; Purity: >98%; No hazardous impurities above regulatory thresholds; Minor organic by-products from production possible, typically less than 1%.
First Aid Measures: Inhalation: Remove victim to fresh air, seek medical attention if symptoms develop; Skin contact: Immediately wash area with soap and water, remove contaminated clothing; Eye contact: Rinse eyes with plenty of water for at least 15 minutes and call for assistance if irritation continues; Ingestion: Rinse mouth, drink water if conscious, avoid forced vomiting and consult medical professionals.
Fire-Fighting Measures: Suitable extinguishing agents: Water spray, dry powder, carbon dioxide, alcohol-resistant foam; Firefighters should wear self-contained breathing apparatus and standard protective gear; Combustion may yield toxic vapors including carbon oxides; Containers may rupture under heat; Evacuate non-essential personnel if large fire occurs.
Accidental Release Measures: Ventilate area; Wear protective gloves, goggles, and suitable clothing; Small spills: Absorb with inert material like sand or earth, collect for proper disposal; Large spills: Contain spill, prevent entry into sewers; Clean area thoroughly with water after removal.
Handling and Storage: Use in well-ventilated environments; Avoid contact with eyes, skin, and clothing; Store in tightly closed containers in cool, dry, and well-ventilated places; Keep away from incompatible substances such as strong acids or oxidizing agents; Label storage containers clearly.
Exposure Controls and Personal Protection: Use engineering controls like mechanical ventilation or fume hoods; Personal protective equipment: Nitrile gloves, splash-proof goggles, lab coats; Workplace exposure limits are not formally established, but minimize long-term exposure; Wash hands thoroughly after handling.
Physical and Chemical Properties: Appearance: Clear, colorless liquid; Odor: Faint; Boiling point: ~ 288°C; Melting point: -26°C; Density: 1.05 g/cm³ at 20°C; Solubility: Miscible with water; Vapor pressure: Very low at room temperature; pH: Neutral; Viscosity: Medium.
Stability and Reactivity: Stable under standard conditions; Avoid strong acids, bases, and oxidizing agents; Can react to form hazardous products with improper storage; Does not polymerize; Hazardous decomposition products: Carbon monoxide, carbon dioxide produced from burning.
Toxicological Information: May cause moderate skin and eye irritation; Ingestion of large quantities can result in gastrointestinal upset, headache, and drowsiness; Absorption through skin unlikely to cause systemic toxicity at normal usage levels; Not defined as mutagenic or reproductive toxicant under REACH guidance; Acute toxicity low in animal models.
Ecological Information: Readily biodegradable in environmental conditions; Low potential to bioaccumulate; Toxicity to fish and aquatic organisms is considered low based on available studies; Prevent concentrated release to waterways to minimize localized impacts.
Disposal Considerations: Dispose in accordance with local, regional, and national regulations; Waste material should be handled by licensed disposal company; Containers should be rinsed and recycled or incinerated where permitted; Avoid release to surface water or drains.
Transport Information: Not regulated as dangerous goods for air, sea, or ground transport; Ensure containers are correctly labeled and securely closed; Maintain upright position to prevent leaks; Emergency response information should always be accessible during transit.
Regulatory Information: Meets requirements according to OSHA HazCom and EU REACH; Not included in lists of major hazardous chemicals; Safety training for handlers recommended; Workplace exposure not regulated in most jurisdictions, but employers encouraged to maintain comprehensive safety procedures.
Identification: Trade name: Methanesulfonic Acid; CAS Number: 75-75-2; Synonyms: MSA, methylsulfonic acid; Molecular formula: CH4O3S; Chemical structure: Clear, colorless liquid; Used in electroplating, pharmaceuticals, and catalyst processes; Emergency contact and supplier details included on official documents.
Hazard Identification: Strong acid; Causes severe burns to skin, eyes, and mucous membranes; Fuming may cause respiratory irritation; Ingestion results in corrosive injury to mouth and gastrointestinal tract; Strong dehydrating agent; Not combustible but reacts violently with bases and some metals; Risk of environmental harm if released in large quantities.
Composition / Information on Ingredients: Ingredient: Methanesulfonic Acid; Purity: 99% min; Trace water or organic impurities possibly present below reporting thresholds; No additional hazardous components declared by manufacturer.
First Aid Measures: Inhalation: Move to fresh air, provide oxygen if breathing is labored, call emergency services; Skin contact: Flood area with water for at least 20 minutes, remove contaminated clothing, seek urgent medical care for burns; Eye contact: Hold eyelids open, rinse eyes thoroughly under running water for 20+ minutes and ensure prompt transport to medical facility; Ingestion: DO NOT induce vomiting, rinse mouth, offer water only if person is conscious, immediate hospitalization required.
Fire-Fighting Measures: Suitable extinguishing media: Foam, dry chemicals, carbon dioxide; Acid itself not flammable but will emit hazardous vapors if heated; Firefighters need acid-resistant gear and self-contained breathing apparatus; Runoff from fire control may cause pollution or corrosive damage.
Accidental Release Measures: Evacuate unauthorized persons; Wear acid-resistant gloves, goggles, and chemical suit; Neutralize spill using sodium bicarbonate or lime, then absorb with non-combustible materials; Ventilate area to disperse fumes; Collect and dispose neutralized waste as hazardous material in accordance with regulations.
Handling and Storage: Handle only in chemical fume hood or well-ventilated area; Avoid sources of moisture, metals, and incompatible chemicals (alkalis, cyanides, and reducing agents); Keep containers sealed and upright; Store in acid-resistant containers away from heat sources; Label areas and train staff for immediate spill response.
Exposure Controls and Personal Protection: Use acid-resistant PPE including butyl rubber gloves, splash-proof face shield, and chemical apron; Ensure eyewash stations and safety showers in immediate work area; Maintain good industrial hygiene; Workplace exposure standards: ACGIH TLV 1 ppm (vapor); Respiratory protection required above recommended limit.
Physical and Chemical Properties: Appearance: Colorless, syrupy liquid; Odor: Slightly sulfurous; Boiling point: 167°C; Melting point: -54°C; Density: 1.48 g/cm³ at 20°C; Miscible with water; pH (1% solution): less than 1; High viscosity; Reacts violently with alkalis, forming large amounts of heat and gas.
Stability and Reactivity: Stable under normal storage; Deliquescent, absorbs moisture from air; Reacts with strong bases, cyanides, and some metals, generating toxic gas (hydrogen); Avoid heat and incompatible materials; Hazardous decomposition may include sulfur oxides, methane fumes, and water vapor.
Toxicological Information: Causes immediate burn-type injury on contact; Vapor inhalation may provoke severe irritation or breathing difficulties; Ingestion likely produces deep tissue burns, bleeding, and gastrointestinal damage; Prolonged or repeated exposure can worsen skin and eye injury; Chronic toxicity data limited—no evidence of carcinogenic potential reported for workers.
Ecological Information: Highly acidic effluent can lower water body pH, damaging aquatic species and habitat; Low potential to bioaccumulate; MSA rapidly dissociates and dilutes in water, but large quantities harm ecosystems; Do not allow untreated discharges to surface water, soil, or drains.
Disposal Considerations: Dispose through licensed chemical waste company; Consult with hazardous waste disposal authority before dumping residue or containers; Neutralize with alkali before disposal where permitted; Never release to public wastewater or landfill untreated; Rinse containers thoroughly prior to recycling.
Transport Information: Classified as a corrosive liquid (UN 3265); Packing group II; Must be transported in corrosion-resistant containers; Keep upright and avoid shocks or impact; Emergency response documentation required with every shipment.
Regulatory Information: Subject to chemical control laws in US (TSCA), EU (REACH), and major Asian markets; OSHA hazardous substance, requires training in PPE, handling, and exposure response; Labeling must show hazard pictograms, warning statements, and supplier identity; Emergency plans should address spill control and exposure management.
