undissolved. The resinous substance

2010-12-4 14:23:25 1316

0 本帖最后由 eehome 于 2013-1-5 10:05 编辑 times New="New" Roman'; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">probably contained merely the urinary extrac Moncler , Moncler jacket, Moncler K2 vest black, Moncler K2 vest Pink tive matter soluble in alcohol and ether. The watery solution of the syrup, on being mixed with hydrochloric acid and boiled, became darker in colour, and then deposited dark brown resin-like masses, which remained in a state of fusion as long as the liquid was kept boiling. The filtered liquid left on evaporation a syrupy residue, which wa Moncler jackets, Moncler Multiple K2 Vest Beige s only partly soluble in water, a quantity of the resin-like substance being left undissolved. The solution, after being again filtered and evaporated, left a brown syrup filled with crystalline needles. Cold alcohol dissolved the greatest part of this residue, leaving only the crystalline needles undissolved. The resinous substance, after being well washed with water, was treat Moncler jackets for men, Moncler Alpin, Moncler Angers, Moncler Bady ed with cold alcohol, in which it was entirely soluble, forming a brown solution which, on evaporation, left a brown, shimng, brittle residue. The extractive matter contained in this compound differs therefore from that of the lead compound previously analyzed, not only by its solubility in ether, but also by its yielding with acids products of decomposition of a different kind. The alcoholic liquid filtered from the lead precipitate (J Moncler Branson Jacket ，Moncler Branson Navy , Moncler Bea ) was mixed with more acetate of lead and some ammonia, with which it gave a bulky cream-coloured precipitate. This was filtered off, washed with water, then suspended in water, and decomposed with sulphuretted hydrogen. The filtered liquid was evaporated, as before described, by means of a current of air, and the yellow syrup left on evaporation was poured into a flask and agitated with alcohol, which dissolved the whole of it with the exception of a slight residue, consisting of a glutinous substance mixed with some white crystals. The filtered liquid was evaporated, and the resi Moncler down jackets, Moncler Multiple K2 Vest Black due left was agitated with ether. The ether having been poured off, the insoluble portion was treated with cold alcohol, which dissolved almost the whole of it. The solution was mixed with a little alcoholic solution of acetate of lead, and the precipitate thereby produced having been filtered off, more acetate of lead was added, which gave a precipitate of a pure cream-colour. This was filtered off, washed with alcohol, dried in vacuo, and analyzed, the following results being obtained:— IV. 1-0155 grm. gave 06730 grm. carbonic acid a Moncler jackets women, Moncler Boutique nd 0-2055 grm. water. 1-1440 grm. gave 0-1425 grm. chloride of platinum and ammonium. 0-4165 grm. gave 0-3180 grm. sulphate of lead. 0-8905 grm. gave 0
2010-12-4 14:23:25　　评论淘帖0 举报相关推荐 • Adobe Substance 3D整合AI功能：基于文本生成纹理、背景 639 • 洞悉 Omniverse: Adobe Substance 3D 与 Omniverse 提高 3D 工作流的创作自由度 507 • Adobe宣布收购3D内容创建工具Substance Painter母公司Allegorithmic 8131 • DTSD1352导轨式多功能电能表安装使用说明书 V2.15 1 • PC817中文手册 0 • VK2C21 LCD驱动器中文手册 0 • 仪表培训课件 1 • 1.5KE6.8A(CA)-1.5KE600A(CA)瞬态抑制二极管产品规格书 0 • 同类型电感封装规格变化对性能有影响吗 0 • 如何从外观上分辨磁棒电感的好坏 0