Mannitol
Inquiry
| Post Date: | Apr 18,2013 |
| Expiry Date: | Oct 15,2013 |
| Detailed Description: |
Cas No. :87-78-5
Mannitol
ALIAS:DL-Mannitol; AI3-19511; Hexahydroxyhexane; Mannidex 16700; NSC 9256; D-Mannitol; D-(-)-Mannitol; hexitol; L-altrito CAS NO. :69-65-8 Formula:C6H14O6 Molecular Weight:182.17 Product D-mannitol. Calculated on dry goods, containing C6H14O6 98.0 to 102.0%. 【Properties】 This product is a white crystalline powder; odorless, sweet. This product is soluble in water, almost insoluble in ethanol or ether. The melting point of this product melting point (Appendix Ⅵ C) is 166 ~ 170 ℃. [Identification] (1) To about 0.5g, set in a test tube, add acetyl chloride 3ml, the slowly dropping pyridine 0.5ml, with the Dropwise with shaking, as soon as the completion of the reaction, attention to the solution was transferred to another tube, cooled with ice, and the precipitated crystals were filtered, Washed with ether and 10ml the displacement test tube, add ether 15ml, set a warm bath heated to dissolve, hot poured take ether Liquid volatilized ether, white crystals (if necessary, then recrystallized from 1 time), after drying, according to the determination (Appendix VI C), The melting point of 120 ~ 125 ℃. (2) take the goods saturated aqueous solution 1ml, 0.5ml, plus ferric chloride test solution and sodium hydroxide solution that is generated The yellow-brown precipitate was shaken not disappear; brown solution was dissolved into an excess of sodium hydroxide solution was added dropwise. The infrared absorption spectrum of (3) of this product should be in control of the map (spectral set of 84). [Check] acidity to take this product 5.0g, plus new boiling 50ml of cold water is dissolved, add phenolphthalein indicator solution 3 drops Sodium hydroxide solution (0.02mol / L) 0.30ml, should substantially pink. Clarity and color of solution 1.5g 10ml water dissolved, the solution should be clear and colorless to take this product; such as explicit muddy Compared with the 1st turbidity standard solution (Appendix Ⅸ B) shall not be thicker. Chloride 1.0g, take this product according to inspection (Appendix Ⅷ A), with standard sodium chloride solution 3.0ml made on Control solution comparison, not thicker (0.003%). Sulfate to take this product 2.0g, according to inspection (Appendix Ⅷ B) with standard potassium sulfate solution 2.0ml made control Liquid comparison, not thicker (0.01%). Oxalate to take this product 1.0g, add water 6ml, heating dissolved, let cool, add 3 drops of ammonia solution with calcium chloride test solution 1ml, shaken, heated in a water bath for 15 minutes, remove the cool; such as the occurrence of turbidity of oxalic acid and sodium oxalate solution Sodium 0.1523g, set 1000ml LiangPing, dissolved in water and diluted to the mark, shake. 1ml equivalent to 0.1mg Oxalate (C2O4)] 2.0ml of the control solution is made by the same method comparison, not thicker (0.02%). Drying of this product, dried at 105 ℃ to constant weight, less weight loss should not exceed 0.5% (Appendix Ⅷ L). The ignition residue should not exceed 0.1% (Appendix VIII N). Heavy metal to take this product 2.0g, dissolved plus water 23ml vinegar salt |
| CAS Registry Number: | 87-78-5 |
| Synonyms: | ;DL-Mannitol;AI3-19511;Hexahydroxyhexane;Mannidex 16700;NSC 9256;D-Mannitol;D-(-)-Mannitol;hexitol;L-altritol; |
| Molecular Formula: | C6H14O6 |
| Molecular Weight: | 182.1718 |
| Molecular Structure: | 
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| Safety Description: | S24/25:; |
| Company: | Wuhan Yuancheng Gongchuang Technolgoy Co.,Ltd [ China ] |
| Contact: | echo |
| Tel: | 86-27-88327880 |
| Fax: | 0086-27-88048077-843 |
| Email: | ycgl13@yccreate.com |
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