OPEN AND CLOSED SYSTEMS. A system is commonly defined as a group of interacting units or elements that have a common purpose. The units or elements of a system can be cogs, wires, people, computers, and so on. Systems are generally classified as open systems and closed systems and they can take the form of mechanical, biological, or social systems.
Ethyl oleate is a fatty acid ester formed by the condensation of oleic acid and ethanol.t also finds use as a lubricant and a plasticizer. Ethyl oleate is regulated as a food additive by the Food and Drug Administration under Food Additives Permitted for Direct Addition to Food for Human Consumption, 21CFR 172.515.
Ethyl Lactate is an environmentally benign solvent. Lactate esters have found industrial applications in specialty coatings, inks, cleaners and standard cleaning products.The solvent market is estimated at between 3.5 to 4.5 million tonnes per year, at prices ranging from US$ 2.00 to US$ 3.75 per kilo.io-solvents are progressively replacing petrochemical solvents and ethyl lactate serves as a biodegradable and non-toxic solvent which is sought after especially in the field of microelectronics and complies with the quality demands of the semiconductor industry.