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Castor oil is a vegetable oil pressed from castor beans, the seeds of the plant Ricinus communis. [1] The seeds are 40 to 60 percent oil. [ 2 ] It is a colourless or pale yellow liquid with a distinct taste and odor.
Castor oil by itself has been used in making a variety of polyurethane products, ranging from coatings to foams, and the use of castor oil derivatives continues to be an area of active development. Castor oil derivatized with propylene oxide [9] makes polyurethane foam for mattresses and yet another new derivative is used in coatings [10]
Ricinus communis, the castor bean [1] or castor oil plant, [2] is a species of perennial flowering plant in the spurge family, Euphorbiaceae. It is the sole species in the monotypic genus , Ricinus , and subtribe , Ricininae .
Jatropha curcas is a species of flowering plant in the spurge family, Euphorbiaceae, that is native to the American tropics, most likely Mexico and Central America. [2] It is originally native to the tropical areas of the Americas from Mexico to Argentina, and has been spread throughout the world in tropical and subtropical regions around the world, becoming naturalized or invasive in many ...
For lubricant base oil use, the vegetable derived materials are preferred. Common ones include high oleic canola oil, castor oil, palm oil, sunflower seed oil and rapeseed oil from vegetable, and tall oil from tree sources. Many vegetable oils are often hydrolyzed to yield the acids which are subsequently combined selectively to form specialist ...
An essential oil extracted from myrrh (Commiphora myrrha) Myrrh is mentioned as a rare perfume in several places in the Hebrew Bible . In Genesis 37:25 , the traders to whom Jacob 's sons sold their brother Joseph had " camels ... loaded with spices, balm, and myrrh," and Exodus 30:23–25 specifies that Moses was to use 500 shekels of liquid ...
The Marathi Vishwakosh (lit. ' Marathi Encyclopedia ') is an online free encyclopedia in Marathi language, funded by the Government of Maharashtra, India. [1] [2]The project to create the encyclopedia started as a print project and was inaugurated in 1960, and Lakshman Shastri Joshi was named the first president of the project.
Castor oil has numerous industrial uses, owing to the presence of a hydroxyl group on the fatty acid. Castor oil is a precursor to Nylon 11. Castor oil may also be reacted with epichlorohydrin to make a glycidyl ether which is used as a diluent and flexibilizer with epoxy resins. [citation needed]