The,characteristics,and,adapta health The characteristics and adaptability of castor oil
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The shelled nucleus contains up to nearly 70% oil, 18% protein.Castor oil is the only product grease that mainly containing hydroxy acid. Themain origin of castor is Brazil, Indiaand the former Soviet Union, in the provinces of China has also planted. Castoroil contains a large number of ricinoleic acid (above 80%), so that has manyunique properties: easy to soluble in ethanol, it is difficult to dissolve inpetroleum ether. This feature makes castor oil can be easily distinguished fromother oils. The viscosity of castor oil is much higher than the average grease,at a temperature of 25 is 680CPS, viscosity index is 84, low coefficients offriction (0.1). Meanwhile, castor oil is insoluble in gasoline, low freezingpoint, high-lighted. Castor oil with strong mobility, refined castor oil at -22was still flowing, quenched at -50without turbidity, is the ideal lubricants for aerospace and high-speed machineand the protective oil for power belt. Has a strong rotation, dielectricconstant is about 4.30, the highest in common oils. The relative density andacetylated values of castor is greater than the general grease. Castor oil hardly occurs oxidativerancidity in the air, it has good storage stability, is a typical non-dryingliquid oil. Castoroil is an almost colorless or slightly yellow clear viscous liquid, have alittle smell, the taste is first light and then a little bitter. It is easy todissolve in ethanol, can be arbitrarily mixed with ethanol, chloroform, diethylether or acetic acid. The relative density is 0.956 ~ 0.969 at 25.Refractive index is 1.478 ~ 1.480. Castoroil is extracted from castor beans, with high economic value, it is a medicinallaxatives; textile, chemical engineering and light industry sectors take castoroil as dyeing auxiliary, lubricants, plasticizers, emulsifiers andmanufacturing paint, soap and printing ink raw materials. This oil can be usedas barrier to block harmful climate damage to the skin, have skin moisteneffect. After castor oil dried and hardened, can be made tasteless transparentsoap. Ricinoleic acid and its derivatives can make the skin smooth andmoisturize skin, improve rough skin, cure acne. According to cosmetic raw materialsuppliers, hydrogenated castor oil oresters can be used as excipient or carrier, lubricants, solubilizers, etc. inthe cosmetics, toiletries, hair care and skin care products, has cleaning andconditioning skin effects. Castoroil treated with concentrated sulfuric acid will obtain a good surface activesulfate (known as Turkey red oil). Castor oil through dehydrating can beobtained conjugated double bond dry oils. With different hydrogenationconditions processed castor oil can be obtained different kinds of products,therefore castor oil widely used in various industrial sectors. Castor oil isclosest pure compound monoacid triglycerides. The unsaponifiable content incastor oil is less than 1%. Vitamin content is also lower (about 0.05). Theoil content of castor beans is high, due to the different purposes of oil, theextracted oil methods also different, medicinal castor oil is cold pressed witha hydraulic press, the temperature does not exceed 50,otherwise some impurities will be dissolved in the oil and cannot for medicinalpurposes. Castor oil obtained by cold pressed was known as the 1st. After itsresidue crushing, then pressing or leaching again to prepare the 3rd castor oil(No 2th) for industrial use. With screw press directly pressing, or castor oilobtained by pre-press-leaching only can be used as industrial oil. ArticleSource:http://www.cosprm.com
The,characteristics,and,adapta