Mannitol

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Mannitol MF: C6H14O6 MW: 182.17 This product is D-mannitol . Calculated on dry goods , including C6H14O6 should be 98.0 ~ 102.0% . Properties:white crystalline powder ; odorless, sweet . This product is soluble in water, in ethanol or ether almost insoluble. Melting point melting point of this product ( Appendix Ⅵ C) to 166 ~ 170 ℃. Identification: (1) To about 0.5g, test tube , add acetyl chloride 3ml, slowly dropping pyridine 0.5ml, with Dropwise with shaking , the reaction is completed once , pay attention to the solution was transferred to another tube , with ice -cooling, the precipitated crystals were filtered , After washing with ether 10ml , removal test tube, add ether 15ml, set a warm water bath heated to dissolve , hot dip take the ether Liquid vaporized ether to give white crystals ( recrystallized again when necessary, 1 ) , after drying , determined by law ( Appendix Ⅵ C), A melting point of 120 ~ 125 ℃. (2) to take this product a saturated aqueous solution 1ml, add ferric chloride solution and sodium hydroxide solution each 0.5ml, which generates Brown precipitate , shaking does not disappear ; dropping an excess of sodium hydroxide solution , which dissolved into a brown solution . (3) The infrared absorption spectrum should control of the spectrum ( spectral set 84 Figure ) consistent . Category:dehydration, diuretics. Storage:Sealed. EXW PRICE: USD5/KG

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HubeiYuancheng Saichuang Technology Company

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