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|Section2= |Section3= }} Sorbitan is a mixture of isomeric organic compounds derived from the dehydration of sorbitol. The mixture can vary, but usually consists of 1,4-anhydrosorbitol, 1,5-anhydrosorbitol and 1,4,3,6-dianhydrosorbitol.〔''Merck Index'', 12th Edition, 8872〕 Sorbitan is primarily used in the production of surfactants such as polysorbates. Sorbitan is an intermediate in the conversion of sorbitol to isosorbide. ==Esters== Sorbitan esters (also known as Spans) are nonionic surfactants that are used as emulsifying agents in the preparation of emulsions, creams, and ointments for pharmaceutical and cosmetic use. When used alone they produce stable water-in-oil emulsions but they are frequently used with a polysorbate in varying proportions to produce water-in-oil or oil-in-water emulsions or creams with a variety of different textures and consistencies. Sorbitan esters are also used as emulsifiers and stabilisers in food.〔 〕 File:Sorbitan_monostearate.png|Sorbitan monostearate File:Sorbitan_tristearate.png|Sorbitan tristearate File:Sorbitan_monolaurate.svg|Sorbitan monolaurate 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「sorbitan」の詳細全文を読む スポンサード リンク
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