decantation. Sciences, Culinary Arts and Personal Nitrobenzene is a pale yellow liquid (bp 211, The chemical reactions of nitrobenzene are those of the Nitrobenzene is one of these substituents since pie bonding on the nitrogen and both oxygens allows electrons to be shared on the nitrogen and each oxygen. If at least one company has indicated that the substance classification is affected by impurities or additives, this will be indicated by an informative sentence. in the preparation of benzidine and metanilic acid. The CLP Regulation uses the UN Global Harmonised System (GHS) and European Union Specific Hazard Statements (EUH). Nitrobenzene can be produced by combining benzene with nitric acid in the presence of a strong acid or by substituting another substituent, such as chlorine, on the benzene ring for the nitro group. The source of the information is mentioned in the introductory sentence of the hazard statements. Approximately 95% of nitrobenzene is consumed in the production of aniline: Not sure what college you want to attend yet? Les valeurs limites d’exposition professionnelle (VLEP) sont définies dans deux cadres légaux qui font partie intégrante du mécanisme élaboré par l’UE en vue de protéger la santé des travailleurs. If available, additional information on classification and labelling (C&L) is derived from REACH registration dossiers submitted by industry. [{Image src='reaction8324181994233158407.jpg' alt='react' caption=''}]. Please note that it may take a week or two to have everything fully in place, and please be aware in the meantime that the Registration status may be incorrect and the CLP regulatory context may be incompletely shown. Learn more. sur la façon dont nous utilisons les cookies. Substances for which classification and labelling data have been notified to ECHA by manufacturers or importers. One of the main uses of nitrobenzene is to make aniline by reducing the nitro group to a primary amine, using a strong acid. The sulfuric acid can make the nitric acid lose water, forming a nitronium ion. There is a newer version of this article, I have read and accept the Wiley Online Library Terms and Conditions of Use, https://doi.org/10.1002/9780470842898.rn00696. carbonate solution to remove any acid, and purified by distillation using an air condenser. Both in the laboratory as well as in industry, nitrobenzene is prepared by heating benzene with a mixture of concentrated nitric acid and sulphuric acid at 50°C. Although the benzene ring is now very unreactive, the nitro portion is able to react further to make aniline. listes des produits chimiques soumis au règlement PIC. L’ECHA organise des consultations afin de recevoir un retour d’information de la part de toutes les parties intéressées et de rassembler l’éventail le plus large possible d’informations scientifiques pour les processus réglementaires. - Method & Examples. If you do not receive an email within 10 minutes, your email address may not be registered, A small amount of nitrobenzene is used in the manufacture of dyes, drugs, pesticides, and synthetic rubber. De plus amples informations sur la pratique multilingue de l'ECHA sont disponibles. Working Scholars® Bringing Tuition-Free College to the Community. sh�zkj�}# 磷B�s��F���a�G��歨�4�%�l�x� Nitrobenzene uses. All rights reserved. Enregistrement, évaluation, autorisation et restriction des substances chimiques, Règlement sur le consentement préalable informé, Directive sur les agents chimiques et directive sur les agents cancérigènes ou mutagènes, Règlement concernant les polluants organiques persistants, EC Inventory, C&L Inventory, Pre-Registration process, La communication au sein de la chaîne d’approvisionnement, Liste de substances candidates dans des articles, Publication des informations contenues dans les dossiers, Statistiques relatives aux enregistrements, Identification des substances extrêmement préoccupantes, Recommandation d’inclusion dans la liste d’autorisations, Activités de l’ECHA en matière de restrictions, Élaboration d’une proposition de restriction, Informations sur les substances faisant l’objet d’une restriction, Introduction à la législation de l’UE sur les produits chimiques, Substitution par des produits chimiques plus sûrs, Classification des substances et des mélanges, Classification et étiquetage harmonisés (CLH), Nom chimique de remplacement dans des mélanges. /Encoding 256 array 1 0 obj << /CreationDate (D:20000621162920Z) /Producer (Acrobat Distiller 3.02) /Title (tf140) /Subject (tf140) /Author (goswald) /Creator (Adobe PageMaker 6.52) /Keywords () /ModDate (D:20030122115106-05'00') >> endobj 2 0 obj << /Type /Page /Parent 12 0 R /Resources << /ColorSpace << /CS21 26 0 R /CS22 27 0 R /CS23 47 0 R /CS24 62 0 R /CS18 26 0 R /CS19 27 0 R /CS20 47 0 R /CS15 26 0 R /CS16 27 0 R /CS17 47 0 R /CS12 26 0 R /CS13 27 0 R /CS14 47 0 R /CS10 26 0 R /CS11 27 0 R /CS8 26 0 R /CS9 27 0 R /CS6 26 0 R /CS7 27 0 R /CS4 26 0 R /CS5 27 0 R /CS2 26 0 R /CS3 27 0 R /CS0 26 0 R /CS1 27 0 R >> /ExtGState << /GS42 10 0 R /GS43 28 0 R /GS44 49 0 R /GS45 25 0 R /GS46 67 0 R /GS47 68 0 R >> /Font << /T1_31 5 0 R /T1_32 7 0 R /TT9 8 0 R /T1_33 9 0 R /T1_34 66 0 R >> /ProcSet [ /PDF /Text ] >> /Contents 69 0 R >> endobj 5 0 obj << /Type /Font /Subtype /Type1 /BaseFont /Times-Bold /Encoding 21 0 R >> endobj 7 0 obj << /Type /Font /Subtype /Type1 /BaseFont /Times-Roman /Encoding 21 0 R >> endobj 8 0 obj << /Type /Font /Subtype /TrueType /FontDescriptor 19 0 R /FirstChar 32 /LastChar 189 /Widths [ 250 0 0 0 0 0 0 0 0 0 0 0 0 333 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 333 0 500 0 0 0 0 0 0 0 0 0 0 0 500 0 0 0 333 0 278 0 0 0 0 0 444 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 280 280 0 0 0 0 0 0 0 0 0 0 0 250 0 0 0 0 0 0 0 0 0 0 0 0 333 0 0 0 0 0 0 0 444 444 0 0 0 278 0 0 500 ] /BaseFont /PLACAP+TTE1B2D008T00+1 >> endobj 9 0 obj << /Type /Font /Subtype /Type1 /FontDescriptor 17 0 R /FirstChar 113 /LastChar 113 /Widths [ 888 ] /Encoding 23 0 R /BaseFont /PLAFPJ+TT7CBO00 >> endobj 10 0 obj << /Type /ExtGState /SA false /OP false /HT /Default >> endobj 12 0 obj << /Type /Pages /Kids [ 2 0 R 13 0 R ] /Count 2 /MediaBox [ 0 0 612 792 ] >> endobj 13 0 obj << /Type /Page /Parent 12 0 R /Resources << /ColorSpace << /CS22 26 0 R /CS23 27 0 R /CS20 26 0 R /CS21 27 0 R /CS18 26 0 R /CS19 27 0 R /CS16 26 0 R /CS17 27 0 R /CS14 26 0 R /CS15 27 0 R /CS12 26 0 R /CS13 27 0 R /CS10 26 0 R /CS11 27 0 R /CS8 26 0 R /CS9 27 0 R /CS6 26 0 R /CS7 27 0 R /CS4 26 0 R /CS5 27 0 R /CS2 26 0 R /CS3 27 0 R /CS0 26 0 R /CS1 27 0 R >> /ExtGState << /GS132 10 0 R /GS133 71 0 R /GS134 72 0 R /GS135 73 0 R /GS136 76 0 R /GS137 77 0 R /GS138 25 0 R /GS139 155 0 R /GS140 156 0 R /GS141 157 0 R /GS142 158 0 R /GS143 159 0 R >> /Font << /T1_33 5 0 R /T1_34 7 0 R /T1_35 74 0 R >> /ProcSet [ /PDF /Text ] >> /Contents 160 0 R >> endobj 17 0 obj << /Type /FontDescriptor /Ascent 0 /CapHeight 0 /Descent 0 /Flags 4 /FontBBox [ 0 0 804 720 ] /FontName /PLAFPJ+TT7CBO00 /ItalicAngle 0 /StemV 0 /CharSet (/G71) /FontFile 18 0 R >> endobj 18 0 obj << /Length 974 /Length1 396 /Length2 576 /Length3 0 >> stream

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