苯扎氯铵(3页).doc
![资源得分’ title=](/images/score_1.gif)
![资源得分’ title=](/images/score_1.gif)
![资源得分’ title=](/images/score_1.gif)
![资源得分’ title=](/images/score_1.gif)
![资源得分’ title=](/images/score_05.gif)
《苯扎氯铵(3页).doc》由会员分享,可在线阅读,更多相关《苯扎氯铵(3页).doc(3页珍藏版)》请在得力文库 - 分享文档赚钱的网站上搜索。
1、-苯扎氯铵-第 3 页苯扎氯铵bn zh l nBenzalkonium Chloride本品为氯化二甲基苄基烃铵的混合物。按无水物计算,含烃铵盐(C22H40CIN)应为 95.0105.0。This product is the mixture of dimethyl benzyl ammonium chloride. Calculation by anhydrous, the C22H40CIN content shall be 95.0105.0. 【性状】 本品为白色蜡状固体或黄色胶状体;水溶液显中性或弱碱性反应,振摇 时产生多量泡沫。 本品在水或乙醇中极易溶解,在乙醚中微溶。Sha
2、pe and properties:This product is a white waxy solid or yellow jelly; water solution is neutral or weak alkaline reaction, when shaking, a lot of foam will produce.This product is easy to dissolve in water or ethanol, slightly soluble in ether. 【鉴别】 (1) 取本品约0.2g,加硫酸1ml 使溶解,加硝酸钠0.1g,置水浴上加热 5 分钟,放冷,加水
3、10ml与锌粉0.5g,置水浴上温热5 分钟,取上清液2ml,加5亚硝 酸钠溶液1ml ,置冰水中冷却,再加碱性萘酚试液3ml ,即显猩红色。 (2) 取本品,加水制成每1ml中含0.5mg的溶液,照分光光度法(附录 A)测定, 在257nm,262nm及269nm 的波长处有最大吸收。 (3) (3) 取本品1 水溶液10ml,加稀硝酸0.5ml ,即发生白色沉淀,滤过,沉淀能在 乙醇中溶解,滤液显氯化物的鉴别反应(附录)。 Identification:(1) Taking this product about 0.2g, with 1ml of sulfuric acid dissolv
4、ing, adding sodium nitrate 0.1g, heating on the water bath for 5 minutes, adding 10ml and zinc powder 0.5g, water bath for 5 minutes, take the supernatant 2ml, adding 5% sodium nitrite solution 1ml, cooling in water, add alkaline naphthol solution 3ml, then scarlet will show. (2) Take this product,
5、add water to make a solution containing 0.5mg per 1ml, according to the spectrophotometric method (Appendix IV A), at 257nm, 262nm and 269nm at the wavelength of maximum absorption.(3) Take this product 1% aqueous solution 10ml, add dilute nitric acid 0.5ml, that is, white precipitate, filtration, p
6、recipitation can be dissolved in ethanol, the reaction of chloride in the filtrate (Appendix III). 【检查】酸碱度:取本品0.5g,加水50ml使溶解,加溴甲酚紫溶液(取溴甲酚紫50mg,加0.1mol/L氢氧化钠溶液0.92ml与乙醇20ml使溶解,加水稀释至100ml)0.1ml,若溶液显黄色,用氢氧化钠滴定液(0.1mol/L)滴定;若溶液显蓝紫色,用盐酸滴定液(0.1mol/L)滴定,消耗的滴定液均不得过0.1ml。溶液的澄清度与颜色:取本品1.0g,加新沸放冷的水100ml使溶解,溶液应
7、澄清无色;如显浑浊,与1号浊度标准液(附录 B)比较,不得更浓;如显色,与黄色2号标准比色液(附录 A第一法)比较,不得更深。水不溶物:取本品1.0g,加水10ml溶解后,不得显浑浊,不得有不溶物。氨化合物:取本品0.1g,加水5ml溶解后,加氢氧化钠试液3ml,加热煮沸,不得发生氨臭。水分:取本品,照水分测定法(附录 M第一法 A)测定,含水分不得过10.0%。炽灼残渣:取本品1.0g,依法检查(附录 N),遗留残渣不得过0.1%。Check:PH: take this product 0.5g, 50ml water to dissolve, with bromocresol purple
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 苯扎氯铵
![提示](https://www.deliwenku.com/images/bang_tan.gif)
限制150内