物品单位 |
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500g |
英文名称 | DL-GLYCERALDEHYDE |
纯度 | % |
CAS编号 | 56-82-6 |
别名 | DL-甘油醛晶体 |
规格 | |
分子式 | C3H6O3 |
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56-82-6 |
; |
500克 |
208 |
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中文名称: |
|
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中文同义词: |
2,3-二羟基丙醛;DL-甘油醛;丙醛糖;DL-甘油醛晶体;DL-2,3-二羟基丙醛;丙醛糖 ;DL-丙醛糖;甘油醛 |
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英文名称: |
DL-GLYCERALDEHYDE |
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英文同义词: |
GLYCERIC ALDEHYDE;GLYCERALDEHYDE;DL-GLYCERALDEHYDE;(+-)-glyceraldehyd;3-dihydroxy-(+/-)-propana;dl-glyceraldehyd;dl-glycericaldehyde;DL-GLYCERALDEHYDE CRYSTALLINE |
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CAS号: |
56-82-6 |
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分子式: |
C3H6O3 |
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分子量: |
90.08 |
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EINECS号: |
200-290-0 |
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Mol文件: |
56-82-6.mol |
生产方法 |
将50g(0.3mol)二乙醇缩DL-甘油醛和500ml0.1mol/L硫酸混合,在20℃放置7d。加入30ml冰乙酸后,用氢氧化钡溶液中和,加5g活性炭,搅拌,过滤。 滤液减压蒸发水分至尽,向剩余物中加入等体积无水乙醇,滤出晶体,干燥,得22gDL-甘油醛,收率80%。 |
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To 50 g (0.3 mol) ethanol shrinkage DL - glyceraldehyde and 500 ml0. 1 mol/L mixture of sulfuric acid in 20 ℃ placed 7 d. With 30 ml ice acetic acid, with barium hydroxide solution to neutralize, add 5 g of activated carbon, mixing, filtering. Filtrate vacuum evaporation to do, to join in residues such as anhydrous ethanol volume, filter out the crystal, drying, 22 GDL - glyceraldehyde, yield of 80%. |