Stearin / ˈ s t ɪər ɪ n /, or tristearin, or glyceryl tristearate is an odourless, white powder. It is a triglyceride derived from three units of stearic acid.Most triglycerides are derived from at least two and more commonly three different fatty acids. [7] Like other triglycerides, stearin can crystallise in three polymorphs.For stearin, these melt at 54 (α-form), 65, and 72.5 °C (β ...
stearin (also stearine) 1.N a colourless crystalline ester of glycerol and stearic acid, present in fats and used in soap and candles; glycerol tristearate; glycerol trioctadecanoate. Formula: (C17H35COO)3C3H5 三硬脂酸甘油酯 (Also called tristearin) [1]
stearin (also stearine) 1.N a colourless crystalline ester of glycerol and stearic acid, present in fats and used in soap and candles; glycerol tristearate; glycerol trioctadecanoate. Formula: (C17H35COO)3C3H5 三硬脂酸甘油酯 (Also called tristearin) [1]
Stearic acid (/ ˈ s t ɪər ɪ k / STEER-ik, / s t i ˈ ær ɪ k / stee-ARR-ik) is a saturated fatty acid with an 18-carbon chain. [9] The IUPAC name is octadecanoic acid. [9] It is a soft waxy solid with the formula CH 3 (CH 2) 16 CO 2 H. [9] The triglyceride derived from three molecules of stearic acid is called stearin. [9] Stearic acid is a prevalent fatty-acid in nature, found in many ...
Stearine | C21H44O5 | CID 93066 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.
Palm stearin is the harder fraction of palm oil, containing a higher proportion of saturated fatty acids and TAGs with a higher melting point of 48–50°C. The palmitic acid content ranges from 49 to 68% and oleic content from 24 to 34% (Sue, 2009).A much harder stearin containing 79% palmitic acid and a tripalmitoylglycerol (PPP) content of 60% is also available.
Stearin is used as a hardening agent in the manufacture of candles and soap. [8] It is mixed with a sodium hydroxide solution in water, creating a reaction which gives glycerin and sodium stearate, the main ingredient in most soap:. C 3 H 5 (C 18 H 35 O 2) 3 + 3 NaOH → C 3 H 5 (OH) 3 + 3 C 18 H 35 OONa. Stearin is also added to aluminium …
Other articles where stearin is discussed: fat and oil processing: Destearinating or winterizing: Separation of high-melting glycerides, or stearine, usually requires very slow cooling in order to form crystals that are large enough to be removed by filtration or centrifuging.
2018年5月23日 · stearin (stēr´Ĭn), fat that is the triglyceride [1] of stearic acid, CH3(CH2)16CO2H, i.e., the tristearate ester of glycerol. It is a white crystalline solid at ordinary temperatures and is insoluble in water and very slightly soluble in alcohol.
stearin stērˈĭn [key], fat that is the triglyceride of stearic acid, CH3(CH2)16CO2H, i.e., the tristearate ester of glycerol. It is a white crystalline solid at ordinary temperatures and is insoluble in water and very slightly soluble in alcohol. It