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Common name: Methyl Lactate
Chemical formula: C4H8O3
CAS Number: 547-64-8
Used in: Solvent processes, chemical synthesis, cleaning products, some flavoring applications
Physical state: Clear, colorless liquid with a mild, sweet odor that hints at lactic acid origins
Industries where it shows up: Pharmaceuticals, food, agriculture, cleaning, manufacturing
Hazard classes: Irritant
Eye contact: Causes stinging and watering
Skin contact: Can lead to redness, mild burns after extended exposure
Inhalation: Vapors may irritate the respiratory tract with coughing or choking if ventilation is poor
Ingestion: Upset stomach and nausea if swallowed accidentally
Combustibility: Not as flammable as many hydrocarbon solvents but can ignite with the right conditions
Long-term exposure: Dryness, cracking, and increased sensitivity for those handling without gloves
Main ingredient: Methyl 2-Hydroxypropionate
Content: Typically over 98% in pure product
Trace components: May include residual lactic acid, methanol, water depending on purification
Allergens: No strong allergens documented but impurities can irritate sensitive individuals
Eyes: Flush immediately with plenty of water, keep eyelids apart, and seek advice if irritation stays
Skin: Remove contaminated clothing, wash area with soap and water for several minutes
Inhalation: Move to fresh air right away, sit down and breathe deeply, consult help if coughing sticks
Swallowing: Rinse mouth, drink a glass of water if able, stay calm and get professional advice
Recovery time: Most minor exposures clear up with prompt action, but increased care makes a big difference
Suitable extinguishers: Water spray, foam, dry chemical, or carbon dioxide
Special hazards: Vapors form flammable mixtures above flash point (about 62°C)
Fire-fighting: Wear protective gear, avoid breathing fumes, prevent runoff from contaminating drains
Decomposition: Burning produces carbon oxides and irritating smoke
Precaution: Store away from heat or open flame; don't let vapors build up in closed rooms
Small spills: Blot with absorbent material, ventilate area, clean up with warm soapy water
Large spills: Build dikes to stop spreading, pump into containers, use absorbents on residue
Personal safety: Gloves, eye protection, and plenty of airflow reduce risk
Environmental care: Stop release from entering sewers or streams, as it can impact aquatic life if large amounts escape
Disposal: Contaminated materials get handled as chemical waste
Ventilation: Necessary for keeping vapor concentrations down
Personal habits: Don't eat, drink, or touch face while using products with methyl lactate
Glove and goggles: Standard lab or industrial practice when pouring, mixing, or transferring
Storage: Keep tightly closed in original container, placed where temperature stays stable and away from incompatible chemicals
Workplace controls: Fume hood or exhaust fans in bigger jobs
Gloves: Nitrile or latex resist penetration
Eyewear: Splash goggles or face shield for high splash risk
Respiratory protection: Use a mask for jobs that throw up high vapor levels or confined space work
Clothing: Long sleeves prevent skin from picking up droplets
Wash up: Hands and face at shift end, after accidental contact
Appearance: Clear and colorless
Odor: Slightly sweet, faintly fruity
Vapor pressure: Moderate, which means it can evaporate and cause airborne exposure over time
Boiling point: Around 145°C
Melting point: Just below room temp
Density: Slightly above water, which can make spills noticeable
Solubility: Mixes well with water and many alcohols
Flash point: Mid 60°C, which means it needs respect around open flames
Stability: Stays stable under normal temperatures, but reacts with strong acids, bases, or oxidizers
Conditions to avoid: Heat, sparks, oxidizing materials
Hazardous breakdown: Decomposes into carbon monoxide, carbon dioxide, and decomposition gases in fire
Polymerization: No risk under expected use
Acute toxicity: Low-moderate; large exposures may cause headaches, dizziness, upset stomach
Irritation: Eyes and skin most vulnerable
Sensitization: Not a documented allergen, but repeated unprotected contact raises chance of dermatitis
Long-term: No strong links to organ toxicity or cancer from usual workplace exposure
Animal testing: Short-term symptoms mainly match brief discomfort seen with other mild solvents
Biodegradability: Breaks down quickly in most environments
Aquatic toxicity: High concentrations hurt fish or small aquatic invertebrates
Bioaccumulation: Unlikely to build up in living creatures
Safe levels: Small releases in industrial settings usually don’t cause ecosystem damage, but larger spills call for action
Runoff: Always clean up outdoor spills to reduce risk
Preferred disposal: Professional chemical waste collection, never flush down household drains
Container handling: Rinse containers, recycle or dispose as hazardous waste
Incineration: May be allowed in industrial settings with emission controls
Regulation: Always follow local and national hazardous waste rules
Best practices: Record types and quantities for proper tracking
Transport class: Not a highly regulated material, but larger shipments get flagged as combustible liquid in many zones
Packaging: Leak-proof sealed drums or canisters stand up best to shipping interruptions
Labeling: Combustible liquid warnings on larger shipments
Spill response: Carriers keep absorbents and safety gear handy for leaks
Route planning: Keep loads away from food, animal feed, and strong oxidizers
Workplace exposure: Covered by general chemical safety laws, such as OSHA’s standards for skin and eye hazard substances
Transport: Subject to labeling rules for combustible liquids depending on volume shipped
Environmental controls: Wastewater discharge limits kick in at higher concentrations
Consumer use: No known bans or restrictions at typical concentrations in end use products
Reporting: Facilities storing large volumes report to local and national authorities as required
