toluene diisocyanate cas

<> Finally the water produced in the nitration is removed from the sulfuric acid so it can be reused in the nitration. x�3R��2�35W(�2�300P@&�ҹ The EC Number is the numerical identifier for substances in the EC Inventory. The process uses the well-known and proprietary Pump Nitration unit and it is performed in two stages with production of intermediate Mononitrotoluene (MNT) in the first stage. More information about Classification and Labelling is available in the Regulations section of ECHA website. stream �ʁt�1H��@aL*9�K?$��L�%_!�+�� �� The Chematur TDA process guarantees complete hydrogenation of DNT with a minímum production of by-products. The REACH registered substance data and the C&L Inventory portal will be upgraded from the 9th November. BPR regulation aims to improve the functioning of the biocidal products market in the EU, while ensuring a high level of protection for humans and the environment. 8 0 obj Toluene diisocyante (TDI, CAS no 26471-62-5) is produced by phosgenation of MTD in a solvent. The EC or list number is the primary substance identifier used by ECHA. Toluene diisocyanate (TDI) is an organic compound with the formula CH 3 C 6 H 3 (NCO) 2.Two of the six possible isomers are commercially important: 2,4-TDI (CAS: 584-84-9) and 2,6-TDI (CAS: 91-08-7). Properties of concern are calculated at four "levels" of certainty: The following properties of concern are calculated: The substance properties displayed in this section are derived from Harmonised classification and labelling (CLH) data, entries in the Candidate list of substances of very high concern for authorisation, the PBT assessment list, the ED assessment list, REACH registered dossier data and from notifications made under CLP. REACH registration dossiers have greater data requirements (such as supporting studies) than do notifications under CLP. The acid flows counter-current to the flow of organics and from the first stage a spent acid (SPA) is produced. 1-800-282-3982. The resulting TDI-tar is removed as a dry solid material which is incinerated. The reaction is ceased within a few seconds when feed of raw materials is stopped. stream Synonym : Toluene-2,4-diisocyanate Chemical Formula : C9H6N2O2 COMPANY IDENTIFICATION Supplier: Pon Pure Chemicals Group CHENNAI, TAMILNADU, INDIA 24 Hour Health Emergency (91) 8939878447 (91) 9444038694 Transportation Emergency Phone (91) 8939768680 … This information has not been reviewed or verified by ECHA, and may change without prior notice. According to the classification provided by companies to ECHA in CLP notifications this substance is very toxic to aquatic life with long lasting effects, causes serious eye irritation and may cause an … <> stream 7 0 obj After recovery and recycle of excess phosgene and the solvent the crude TDI is distilled to remove heavies (tar). endobj endobj stream DNT is continuously hydrogenated to Toluenediamine (TDA). The CLP Regulation ensures that the hazards presented by chemicals are clearly communicated to workers and consumers in the European Union through classification and labelling of chemicals. 2,4-diisocyanato-1-methylbenzene / 2,4-diisocyanatoluene / 2,4-diisocyanatotoluene / 2,4-tolylene diisocyanate / 4-methyl-1,3-phenylene diisocyanate / 4-methyl-meta-phenylene diisocyanate / 4-methyl-m-phenylene diisocyanate / 4-methylphenylene diisocyanate / 4-methylphenylene isocyanate / benzene, 2,4-diisocyanato-1-methyl- / cresorcinol diisocyanate / DESMODUR T65 / DESMODUR T80 / diisocyanatoluene (=2,4-toluene diisocyanate) / diisocyanatotoluene (=2,4-toluene diisocyanate) / HYLENE T (=2,4-toluene diisocyanate) /. The Waste Framework Directive aims to protect the environment and human health from the generation and management of waste and to improve efficient use of resources. C C Persons exposed only to toluene diisocyanate vapor do not pose secondary contamination risks. Other relevant information includes the following: To see the full list of notified classifications and to get more information on impurities and additives relevant to classification please consult the C&L Inventory. The Prior Informed Consent Regulation administers the import and export of certain hazardous chemicals and places obligations on companies who wish to export these chemicals to non-EU countries. 26966-75-6) by distillation. <> Toluenediamine (TDA) is produced by hydrogenation of DNT in the presence of a proprietary catalyst in a continuous well stirred tank reactor. C H [NCO] ) CAS 26471-62-5 (mixture), CAS 584-84-9 (2,4-isomer), CAS 91-08-7 (2,6- isomer); UN 2078 . Hazard Summary . C C Persons exposed only to toluene diisocyanate vapor do not pose secondary contamination risks. It does not represent a new labelling, classification or hazard statement, neither reflect other factors that affect the susceptibility of the effects described, such as duration of exposure or substance concentration (e.g. Toluene diisocyanate, TDI. <> More information about CAS and the CAS registry can be found here. The date of the last update corresponds to the publication date of the InfoCard and not necessarily to the date in which the update occurred in the source data. Impurities or additives: When a specific critical property is calculated from industry data and where the majority of data submitters have indicated that the property relates to cases containing impurities and/or additives, then the respective critical property icon is modified with an asterisk (*). P. O. 2,4-Toluene diisocyanate . From the tar the remaining TDI is recovered to maximize yield. Only a small amount of make-up sulfuric acid must be added to compensate the small losses. Also gaseous NOx is recovered and recycled to the process. endobj The quality and correctness of the information submitted to ECHA remains the responsibility of the data submitter. Toluene di isocyanate (TDI) is an organic compound with the formula CH3C6H3(NCO)2. This website uses cookies to ensure you get the best experience on our websites. �ʁt�1H��@aL*9�K?$��D�%_!�+�� � �ʁt�1H��@aL*9�K?$��X�%_!�+�� a� endobj It is the responsibility of the substance manufacturers and importers to consult official publications, e.g. endstream Box 430, SE-69127 Karlskoga *aZe�f �t�u2��9�އ�\ء��L3�PB��ӄ�ψ�R�Y����d�8&yb�HƧ;����J�i�(���N�tǯDZ41��8ԈLi �' 4���!F3�3b�}c�Ɍ!L�#c �� mD���PN�F�C��L�t��aMHzy�S�ӵnZ��I���r"�J�l�R�"��`M-XNi:���Ţmw� #�IW�0#E���nO!톥�v��aL�{���>�"d����DZ�xiwCr�*2�P�e��}%����K���\R`��#E�7�'pGT�%JG'f��. 4 0 obj 25321-14-6) is produced by continuous nitration of toluene by nitric acid using sulfuric acid as the catalyst/solvent. �ʁt�1H��@aL*9�K?$��\�%_!�+�� �� Harmonised classification and labelling is a legally binding classification and labelling for a substance, agreed at European Community level. 10 0 obj 2,4-TDI is produced in the pure state, but TDI is often marketed as 80/20 and 65/35 mixtures of the 2,4 and 2,6 isomers respectively. the electronic edition of the Official Journal of the European Union. Substances for which classification and labelling data have been notified to ECHA by manufacturers or importers. Note that for readability purposes, only the pictograms, signal words and hazard statements referred in more than 5% of the notifications under CLP are displayed. endobj Toluene di isocyanate (TDI) is an organic compound with the formula CH3C6H3(NCO)2. Dinitrotoluene isomer mixture (DNT, CAS No. endobj Synonyms include TDI, diisocyanatotoluene, and tolylene diisocyanate. The MNT is further nitrated to DNT in stage two using higher temperature and stronger sulfuric acid. %PDF-1.4 endstream Toluene diisocyante (TDI, CAS no 26471-62-5) is produced by phosgenation of MTD in a solvent. The CLP Regulation makes sure that the hazards presented by chemicals are clearly communicated to workers and consumers in the European Union. A substance identified primarily by an EC or list number may be linked with more than one CAS number, or with CAS numbers that have been deleted. Second step is the catalytic hydrogenation of Dinitrotoluene into toluene diamine TDA. 2,4-Toluene diisocyanate is primarily used as a chemical intermediate in the production of polyurenthane products. It covers their hazardous properties, classification and labelling, and information on how to use them safely. The bottom stream is called MTD (CAS No. What is the Classification and Labelling Inventory? <> 1-800-282-3982. The resulting TDA-water mixture is used as the solvent for the process. This substance has been found in the following regulatory activities (directly, or inheriting the regulatory context of a parent substance): Welcome to the ECHA website. <> The POPs Regulation bans or severely restricts the production and use of persistent organic pollutants in the European Union. www.chematur.se The OTD can be sold or incinerated. SE-69146 Karlskoga, info@chematur.se CAS# : 584 -84 -9 RTECS : CZ6300000 TSCA : TSCA 8(b) inventory: Tolylene- 2, 4-diisocyanate CI# : Not available.

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