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Castor oil: Refined: 200 °C [7] 392 °F Coconut oil: Refined, dry: 204 °C: 400 °F [8] Coconut oil: Unrefined, dry expeller pressed, virgin: 177 °C: 350 °F [8] Corn oil: 230–238 °C [9] 446–460 °F Corn oil: Unrefined: 178 °C [7] 352 °F Cottonseed oil: Refined, bleached, deodorized: 220–230 °C [10] 428–446 °F Flaxseed oil ...
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. Its boiling point is 313 °C (595 °F) and its density is 0.961 g/cm 3. [3]
One of a small number of cold pressed essential oils. [40] Used as a flavoring agent [41] and in aromatherapy. [42] Orange oil, like lemon oil, cold pressed rather than distilled. [43] Consists of 90% d-Limonene. Used as a fragrance, in cleaning products and in flavoring foods. [44] The fruit of the sea-buckthorn
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]
The more FFA an oil contains, the quicker it will break down and start smoking. [ 2 ] [ 3 ] The lower the value of FFA, the higher the smoke point. [ 4 ] However, the FFA content typically represents less than 1% of the total oil and consequently renders smoke point a poor indicator of the capacity of a fat or oil to withstand heat.
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]
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