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An introduction to pracical chemistry; including analysis

John E. Bowman

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Description:This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1848 ...which gradually becomes purple when exposed to the light. It is nearly insoluble in nitric acid, and considerably less soluble in ammonia than the chloride (429). 434. (C) Perchloride of mercury (HgCl2) gives a brilliant red precipitate of periocude of mercury (Hgl2), which dissolves in an excess either of the perchloride or of the iodide of potassium. Eg Cla+2Z7=HgI2+2KCI. 435. (C) Starch (C,2H,0O1() forms with iodine, even in highly dilute solutions, a dark purple precipitate of iodide of starch. If the iodine is in a state of combination, as in iodide of potassium or hydriodic acid, it is necessary to liberate it before applying the starch; which is readily done by adding a drop or two of nitric acid (iV05) or a solution of if nitric acid is employed, a portion of its oxygen combines with the hydrogen or metal with which the iodine was in combination, forming water, or a metallic oxide. 3HI+N0!=3HO+'NO1+I. If chlorine be used, it forms with the hydrogen or metal, hydrochloric acid, or a metallic chloride, iodine being liberated in either case. KI+Cl=KCl+I. The starch may be applied either in solution or as a paste; or, what is often more convenient, strips of paper or cotton may be impregnated with the solution, dried, and kept for use. 436. (C) If iodide of potassium, or any other metallic iodide, in the solid state, be heated with a little strong sulphuric acid (HO,S03), both compounds are decomposed; sulphurous acid (SO2) and potash (KO) are formed, and the iodine is set free. KI+2(HO,S03)=K OS03+S O.,+250+1. A portion of the latter sublimes in the form of a beautiful violet coloured vapour, which condenses in the upper part of the tube, and is highly characteristic. If the quantity of iodine liberated is so small that the colour of the vapo...We have made it easy for you to find a PDF Ebooks without any digging. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with An introduction to pracical chemistry; including analysis. To get started finding An introduction to pracical chemistry; including analysis, you are right to find our website which has a comprehensive collection of manuals listed.
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Description: This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1848 ...which gradually becomes purple when exposed to the light. It is nearly insoluble in nitric acid, and considerably less soluble in ammonia than the chloride (429). 434. (C) Perchloride of mercury (HgCl2) gives a brilliant red precipitate of periocude of mercury (Hgl2), which dissolves in an excess either of the perchloride or of the iodide of potassium. Eg Cla+2Z7=HgI2+2KCI. 435. (C) Starch (C,2H,0O1() forms with iodine, even in highly dilute solutions, a dark purple precipitate of iodide of starch. If the iodine is in a state of combination, as in iodide of potassium or hydriodic acid, it is necessary to liberate it before applying the starch; which is readily done by adding a drop or two of nitric acid (iV05) or a solution of if nitric acid is employed, a portion of its oxygen combines with the hydrogen or metal with which the iodine was in combination, forming water, or a metallic oxide. 3HI+N0!=3HO+'NO1+I. If chlorine be used, it forms with the hydrogen or metal, hydrochloric acid, or a metallic chloride, iodine being liberated in either case. KI+Cl=KCl+I. The starch may be applied either in solution or as a paste; or, what is often more convenient, strips of paper or cotton may be impregnated with the solution, dried, and kept for use. 436. (C) If iodide of potassium, or any other metallic iodide, in the solid state, be heated with a little strong sulphuric acid (HO,S03), both compounds are decomposed; sulphurous acid (SO2) and potash (KO) are formed, and the iodine is set free. KI+2(HO,S03)=K OS03+S O.,+250+1. A portion of the latter sublimes in the form of a beautiful violet coloured vapour, which condenses in the upper part of the tube, and is highly characteristic. If the quantity of iodine liberated is so small that the colour of the vapo...We have made it easy for you to find a PDF Ebooks without any digging. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with An introduction to pracical chemistry; including analysis. To get started finding An introduction to pracical chemistry; including analysis, you are right to find our website which has a comprehensive collection of manuals listed.
Our library is the biggest of these that have literally hundreds of thousands of different products represented.

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An introduction to pracical chemistry; including analysis

An introduction to pracical chemistry; including analysis

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