A Treatise on Chemistry Volume 3, No. 4 download book
A Treatise on Chemistry Volume 3, No. 4 download book
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Author: Henry Enfield Roscoe
Number of Pages: 196 pages
Published Date: 20 May 2012
Publisher: Rarebooksclub.com
Publication Country: United States
Language: English
ISBN: 9781236302731
File size: 42 Mb
Download Link: A Treatise on Chemistry Volume 3, No. 4
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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. 1888 Excerpt: ...platinum cbloride, and the excess of platinum removed by sulphuretted hydrogen, a solution of the free acid is obtained; its salts crystallize well and are readily soluble. Its constitution is probably represented by the former of the two following formulae: .SOsH.S03.C2H5 C6H4. C6H4s COrC, H5 C02H Metasulphobenzoyl chloride, C7H4S03Cl2, is obtained by heating the dry acid with phosphorus pentachloride; the phosphorus oxychloride is then distilled off and the residue washed with water. It is a thick, oily liquid, which has a faint but unpleasant odour, and decomposes on distillation into sulphur dioxide and metachlorobenzoyl chloride. The latter is also formed when the compound is heated to 140--150 with phosphorus pentachloride. When it is allowed to stand for some time in contact with water or when the acid is acted upon by one molecule of phosphorus pentachloride, the monochloride is formed: /S02.OH /S02Cl C6H4( or CaH4" N30Cl CO.OH This separates from ether in warty masses, and is decomposed by boiling water, &c., with formation of metasulphobenzoic acid. Metasulphobenzamide, C7H4S03(NH2)., is formed by the action of concentrated aqueous ammonia on the chloride. It is almost insoluble in cold water and crystallizes from hot water or ordinary alcohol in needles containing a molecule of water, while it separates from absolute alcohol in small, vitreous, anhydrous erystals. When it is heated with phosphorus pentachloride the following reaction takes place: /S02NH2 /S02.NH2 C-H." +PCl5 = C6H4 +POCl, + Ha CO.NH2 CCl=zNH The imido-chloride which is thus formed has not been obtained pure;l it decomposes on distillation with formation of metachlorobenzonitril, while ammonia or water converts it into sulphamidobenzonitril, CN.C6H4.S02.NH2, which sep...
Read online A Treatise on Chemistry Volume 3, No. 4 Buy A Treatise on Chemistry Volume 3, No. 4 Download and read A Treatise on Chemistry Volume 3, No. 4 ebook, pdf, djvu, epub, mobi, fb2, zip, rar, torrent Download to iPad/iPhone/iOS, B&N nook A Treatise on Chemistry Volume 3, No. 4 ebook, pdf, djvu, epub, mobi, fb2, zip, rar, torrent
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A Treatise on Chemistry Volume 3, No. 4. Henry Enfield Roscoe
Author: Henry Enfield Roscoe
Number of Pages: 196 pages
Published Date: 20 May 2012
Publisher: Rarebooksclub.com
Publication Country: United States
Language: English
ISBN: 9781236302731
File size: 42 Mb
Download Link: A Treatise on Chemistry Volume 3, No. 4
---------------------------------------------------------------
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. 1888 Excerpt: ...platinum cbloride, and the excess of platinum removed by sulphuretted hydrogen, a solution of the free acid is obtained; its salts crystallize well and are readily soluble. Its constitution is probably represented by the former of the two following formulae: .SOsH.S03.C2H5 C6H4. C6H4s COrC, H5 C02H Metasulphobenzoyl chloride, C7H4S03Cl2, is obtained by heating the dry acid with phosphorus pentachloride; the phosphorus oxychloride is then distilled off and the residue washed with water. It is a thick, oily liquid, which has a faint but unpleasant odour, and decomposes on distillation into sulphur dioxide and metachlorobenzoyl chloride. The latter is also formed when the compound is heated to 140--150 with phosphorus pentachloride. When it is allowed to stand for some time in contact with water or when the acid is acted upon by one molecule of phosphorus pentachloride, the monochloride is formed: /S02.OH /S02Cl C6H4( or CaH4" N30Cl CO.OH This separates from ether in warty masses, and is decomposed by boiling water, &c., with formation of metasulphobenzoic acid. Metasulphobenzamide, C7H4S03(NH2)., is formed by the action of concentrated aqueous ammonia on the chloride. It is almost insoluble in cold water and crystallizes from hot water or ordinary alcohol in needles containing a molecule of water, while it separates from absolute alcohol in small, vitreous, anhydrous erystals. When it is heated with phosphorus pentachloride the following reaction takes place: /S02NH2 /S02.NH2 C-H." +PCl5 = C6H4 +POCl, + Ha CO.NH2 CCl=zNH The imido-chloride which is thus formed has not been obtained pure;l it decomposes on distillation with formation of metachlorobenzonitril, while ammonia or water converts it into sulphamidobenzonitril, CN.C6H4.S02.NH2, which sep...
Read online A Treatise on Chemistry Volume 3, No. 4 Buy A Treatise on Chemistry Volume 3, No. 4 Download and read A Treatise on Chemistry Volume 3, No. 4 ebook, pdf, djvu, epub, mobi, fb2, zip, rar, torrent Download to iPad/iPhone/iOS, B&N nook A Treatise on Chemistry Volume 3, No. 4 ebook, pdf, djvu, epub, mobi, fb2, zip, rar, torrent
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