Ethyl propanoate

Ethyl propanoate is an organic ester compound with the molecular formula C5H10O2 and CAS number 105-37-3. This chemical substance has a molecular weight of 102.13 g/mol and belongs to the ester family, formed by the reaction between propanoic acid and ethanol. It is classified as a flammable liquid (Flam. Liq. 2) under the GHS classification system, requiring careful handling and storage. The compound displays typical ester characteristics and is widely used in various industrial applications due to its favorable properties and relatively straightforward synthesis.

Ethyl propanoate is a colorless liquid with a characteristic fruity, sweet odor reminiscent of pineapple or apple. The compound has good solubility in organic solvents but limited solubility in water due to its ester nature. It exhibits typical ester reactivity, including hydrolysis under acidic or basic conditions. The substance has a relatively low boiling point and moderate vapor pressure at room temperature. Its flammable nature (Flam. Liq. 2 classification) indicates it has a flash point between 23°C and 60°C, making it easily ignitable under normal conditions.

Ethyl propanoate is primarily used as a flavoring agent in the food and beverage industry due to its pleasant fruity aroma. The compound serves as a solvent in various industrial applications, including coatings, adhesives, and cleaning formulations. It is also utilized in the production of perfumes and fragrances, contributing sweet and fruity notes to cosmetic products. Additionally, ethyl propanoate finds applications in the pharmaceutical industry as a solvent for active ingredients and in the synthesis of other organic compounds through various chemical reactions.

Ethyl propanoate requires careful handling due to its Flam. Liq. 2 classification and Danger signal word. Personal protective equipment should include safety goggles, chemical-resistant gloves, and protective clothing to prevent skin and eye contact. Work in well-ventilated areas or use local exhaust ventilation to control vapor concentrations. Eliminate all ignition sources including hot surfaces, sparks, and open flames in the work area. Use explosion-proof electrical equipment when handling larger quantities. Ground and bond containers during transfer operations to prevent static electricity buildup, which could cause ignition.

Ethyl propanoate should be stored in a cool, dry, well-ventilated area away from heat sources, sparks, and open flames due to its flammable nature. Keep containers tightly closed and properly labeled in dedicated chemical storage areas with appropriate fire suppression systems. Store away from incompatible materials such as strong oxidizing agents, strong acids, and strong bases. Ensure storage areas comply with local fire codes and maintain temperatures below the substance's flash point. Use approved containers made of compatible materials and implement proper inventory management to ensure product rotation and prevent degradation.

In case of skin contact with ethyl propanoate, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. If eye contact occurs, rinse immediately with clean water for 15-20 minutes while holding eyelids open. In case of inhalation, move the person to fresh air immediately and seek medical attention if breathing difficulties persist. If ingested, do not induce vomiting and seek immediate medical attention. Remove the affected person from the exposure area and provide supportive care while awaiting professional medical assistance.

Ethyl propanoate waste must be disposed of according to local, regional, and national waste regulations as a hazardous waste due to its flammable classification. The substance should not be discharged to sewers, water bodies, or soil. Collect waste in appropriate containers and arrange disposal through licensed hazardous waste contractors. Consider recovery and recycling options where feasible and economically viable. Incineration at authorized facilities capable of handling flammable organic compounds is typically the preferred disposal method. Always consult current waste regulations and obtain proper waste classification codes before disposal.

Ethyl propanoate is classified under ADR as Class 3 (flammable liquid), Group II, requiring specific transport regulations for dangerous goods. Packages must bear appropriate hazard labels including the GHS02 flammability pictogram and proper shipping names. Use approved packaging that meets UN specification requirements for Packing Group II substances. Transport vehicles must comply with ADR regulations including proper placarding, emergency equipment, and driver certification. Ensure transport documents include all required hazardous materials information and emergency response procedures. Follow quantity limitations and segregation requirements during transport operations.

Ethyl propanoate is subject to various European regulations including REACH registration requirements for substances manufactured or imported above certain tonnage thresholds. The substance must be classified and labeled according to CLP regulation, displaying the Danger signal word and GHS02 pictogram. It is not currently identified as a Substance of Very High Concern (SVHC) under REACH. Transport regulations under ADR apply due to its flammable classification. Additional sector-specific regulations may apply depending on the intended use, particularly in food, cosmetic, or pharmaceutical applications where purity and quality standards are strictly regulated.

Ethyl propanoate is available through OYSI, a established European distributor of technical chemicals serving various industries across the continent. OYSI provides reliable supply chains and technical support for chemical procurement needs. The compound is also available from other chemical suppliers and manufacturers throughout Europe, but availability may vary depending on grade requirements and quantities needed. When sourcing ethyl propanoate, ensure suppliers provide appropriate safety documentation, certificates of analysis, and comply with REACH registration requirements. Consider factors such as packaging options, delivery logistics, and technical support when selecting a supplier.