Polythionic acid is an oxoacid which has a straight chain of sulfur atoms and has the chemical formula Sn(SO3H)2 (n > 2). Trithionic acid (H2S3O6), tetrathionic acid (H2S4O6) are simple examples. They are the conjugate acids of polythionates. The compounds of n < 80 are expected to exist, and those of n < 20 … See more All polythionates anion contains chains of sulfur atoms attached to the terminal SO3H-groups. Names of polythionic acids are determined by the number of atoms in the chain of sulfur atoms: • H … See more Numerous acids and salts of this group have a venerable history, and chemistry systems, where they exist, dates back to the studies John Dalton devoted to the behavior of See more Polythionic acids are rarely encountered, but polythionates are common and important. Polythionic acids … See more H 2S react with SO 3 or HSO 3Cl, forming thiosulfuric acid H 2S 2O 3, as the analogous reaction with H 2S 2 forms disulfonomonosulfonic acid HS 2SO 3H; similarly polysulfanes H2Sn (n = 2–6) give HSnSO3H. Reactions from both ends of the polysulfane … See more Webenvironments such as polythionic acid. Polythionic acid can form during downtime on equipment that has been even mildly corroded by hydrogen sulphide at elevated temperature. The iron sulphide corrosion product combines with air and moisture to form the acid and induces intergranular corrosion and cracking [4].
Polythionic Acid Stress Corrosion Cracking on Proprietary
WebDec 1, 2011 · The tube material got sensitized possibly by localized overheating at the carbon layer deposited site. During shutdown of hydrocracker unit polythionic acid … darren turk crest nicholson
Protection of Austenitic Stainless Steels and Other Austenitic …
http://amirde.persiangig.com/NACE/part4/-%202404%20-%20Protection%20of%20Austenitic%20Stainless%20Steels%20and%20Other%20Austenitic%20Alloys%20from%20Polythionic%20Acid%20Stress%20Corrosion%20Cracking%20During%20Shutdown%20of%20Refinery%20Equ.PDF WebOct 23, 2015 · This standard was originally prepared in 1970 by NACE Task Group T-8-19, revised in 1984 and 1993, and reaffirmed in 1997 by Group Committee T-8. It was revised … WebNatural Occurrence of Polythionic Acids 作者: 期刊: Nature （Nature Available online 1941） 卷期: Volume 148, issue 3756 . 页码: 502-503 ISSN:0028-0836 年代: 1941 DOI:10.1038/148502a0 出版商: Nature Publishing Group 数据来源: Nature 摘要: ... darren\u0027s music derry nh