Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014 hy′drogen chlo′ride n. a colorless gas, HCl, having a pungent odor: the anhydride of hydrochloric acid. ...
Continuous, recycle type process for the manufacture of maleic acid imide from maleic anhydride and ammonia by reacting the components in the gaseous phase in the presence of a dehydration catalyst.doi:US3899509 AWILHELM RIEMENSCHNEIDERUS3899509 * 1970年11月12日 1975年8月12日 Hoechst ...
To oxidize(an ammonia compound)into nitric acid,nitrous acid,or any nitrate or nitrite,especially by the action of nitrobacteria. 硝化将(氨的化合物)氧化成硝酸、亚硝酸或任何硝酸或亚硝酸酯,尤指硝化细菌的作用 In the carbonizing process, the wool cloth is treated with dilute sulfuric acid, dried...
(232).463–466 Secondary amides react with trifluoroacetic acid anhydride or trifluorosulfonic acid anhydride to give mixed anhydrides of imidic acids (233).467 (125) Sign in to download full-size image Scheme 33. 2.7.3.2.2 From imidoyl halides and related compounds Mixed anhydrides (234; ...
Process for removing ammonia from a gas containing sulphurous acid anhydrideProcess for removing ammonia from a gas containing sulphurous acid anhydrideprocess for removing ammonia from a gas containing sulphurous acid anhydride.An SO2-containing gas, in particular, pre-stage gas for the Claus reaction...
Pure solid phosphoric acid contains 72.44% phosphoric anhydride. Max concn of liq phosphoric acid is 88% phosphoric acid, or 63.75% phosphoric anhydride. Polyphosphoric acid (mixture of orthophosphoric acid with pyrophosphoric, triphosphoric, and higher acids and is sold on the basis of its calcula...
ammonia | Lithium carbonate | Maleic anhydride | MDI | Melamine | MIBK | N-butanol | N-Methylpyrrolidone | Neopentyl glycol | PA | PAC | PAM | Phenol | Phosphoric acid | Propylene oxide | PX | Soda ash | Sodium Bicarbonate | Sodium metabisulfite | Styrene | Sulfur | TDI | Titanium ...
1. Names and Identifiers1.1 Name Citric acid monohydrate 1.2 Synonyms 1,1,3-Propanetricarboxylic acid, 1-hydroxy-, hydrate (1:1); 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, hydrate (1:1); 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, monohydrate; 1,2,3-Propanetricarboxylicacid,2-hydroxy...
New aminoacyl-adenylate analogs (aa-AMPNs), in which the oxygen atom of the mixed anhydride bond of aminoacyl-adenylates is replaced by an NH group, were s... T Moriguchi,T Yanagi,T Wada,... - 《Tetrahedron Letters》 被引量: 76发表: 1998年 Use of phenylphosphorodiamidate and N-(n...
storageMalic acid is stable at temperatures up to 150°C. At temperatures above 150°C it begins to lose water very slowly to yield fumaric acid; complete decomposition occurs at about 180°C to give fumaric acid and maleic anhydride.