Methyl formate

Methyl formate is an organic chemical compound with the molecular formula C2H4O2 and CAS number 107-31-3. It is the simplest methyl ester of formic acid, with a molecular weight of 60.05 g/mol. This colorless liquid is classified as a highly flammable substance and poses moderate toxicity risks. It belongs to the formate ester family and is widely used in industrial applications due to its excellent solvent properties and relatively low boiling point.

Methyl formate is a colorless, volatile liquid with a characteristic pleasant, fruity odor reminiscent of rum or plums. It has a low boiling point of approximately 31.5°C and is highly volatile at room temperature. The substance is miscible with water and most organic solvents including alcohols, ethers, and hydrocarbons. It has a density of about 0.97 g/cm³ at 20°C and exhibits high flammability with a very low flash point of -19°C.

Methyl formate is primarily used as a solvent in various industrial applications, particularly in the production of pharmaceuticals, pesticides, and specialty chemicals. It serves as an intermediate in organic synthesis and is utilized in the manufacture of formic acid and formamide. The substance is also employed in the electronics industry for cleaning applications and as a blowing agent in foam production. Additionally, it finds use in analytical chemistry and research laboratories as a reaction medium.

Methyl formate requires careful handling due to its high flammability and toxicity. Personal protective equipment must include chemical-resistant gloves, safety goggles, and appropriate respiratory protection when ventilation is inadequate. Work should be conducted in well-ventilated areas away from ignition sources, heat, and static electricity. Avoid skin and eye contact, and prevent inhalation of vapors. Use explosion-proof electrical equipment and ensure proper grounding of containers during transfer operations to prevent static discharge.

Methyl formate must be stored in tightly sealed containers in a cool, dry, well-ventilated area away from heat sources, sparks, and open flames. Storage temperature should be kept below 25°C to minimize vapor pressure. The substance should be kept away from oxidizing agents, strong acids, and bases. Storage areas must be equipped with appropriate fire suppression systems and vapor detection equipment. Containers should be properly grounded and bonded during handling to prevent static electricity buildup.

Methyl formate exposure requires immediate action depending on the route of contact. For skin contact, remove contaminated clothing and rinse affected areas with plenty of water for at least 15 minutes. In case of eye contact, flush immediately with water for 15-20 minutes and seek medical attention. If inhaled, move the person to fresh air and monitor breathing. For ingestion, do not induce vomiting and seek immediate medical attention. In all cases, contact emergency services if symptoms persist or worsen.

Methyl formate disposal must comply with local, national, and international waste regulations as it is classified as hazardous waste. The substance should never be discharged into drains, soil, or water bodies. Disposal methods include incineration at licensed hazardous waste facilities with proper scrubbing equipment or recovery/recycling where feasible. Small quantities may be allowed to evaporate in well-ventilated areas under controlled conditions, following local environmental regulations and obtaining necessary permits from authorities.

Methyl formate is classified under ADR as Class 3 (flammable liquids), Packing Group I, indicating high danger level during transport. It requires proper hazardous goods packaging, labeling with appropriate danger placards, and transport documentation. Vehicles must be equipped with appropriate fire extinguishing equipment and drivers must hold valid ADR certification. The substance should be transported in approved containers with proper ventilation and away from heat sources, following strict routing and timing restrictions as required by transport regulations.

Methyl formate is subject to comprehensive chemical regulations including REACH registration in Europe, where it must be registered for manufacture or import above one tonne per year. It falls under CLP regulation requiring proper classification and labeling with GHS pictograms GHS02 and GHS07. The substance is not currently listed as a SVHC (Substance of Very High Concern). Industrial users must comply with occupational exposure limits, environmental discharge restrictions, and maintain safety data sheets for workplace safety compliance.

Methyl formate is available through specialized chemical distributors across Europe, with OYSI being a reliable European supplier offering this product to industrial and professional customers. As an established chemical distributor, OYSI can provide methyl formate in various packaging sizes to meet different application requirements. When sourcing methyl formate, ensure the supplier provides complete documentation including safety data sheets, certificates of analysis, and proper hazardous goods transport documentation to ensure regulatory compliance and product quality.