The chemical formula for tdi is ch 3 c 6 h 3 nco 2. Toluene diisocyanate tdi is a colorless to pale yellow flammable liquid with a sharp pungent odour. Toluene 2,4 diisocyanate is a colorless to pale yellow liquid with a strong fruity odor. Toluene 2,6 diisocyanate is used in a mixture with toluene 2,4 diisocyanate to make polyurethane foams, elastomers, and coatings. It is produced on a large scale, accounting for 34. Toluene is an organic solvent, capable of dissolving a number of inorganic chemicals.
We have compiled a list of toluene suppliers in usa, the companies listed have a genuine united states presence and include. Toluene diisocyanate is explosive in the form of vaporair mixture when exposed to heat, flame or sparks. Toluene diisocyanate tdi is an organic compound with the formula ch 3 c 6 h 3 nco 2. Due to its volatility is also a very dangerous compound causing serious effects to the human breathing system. Toluene 2,6 diisocyanate mixtures are white to pale yellow liquids with sharp odors. P202 do not handle until all safety precautions have been read and understood. Tolylene2,4 diisocyanate 584849 buy and find out price and availability, msds, properties of tcis high quality specialty chemicals. Articles of toluene 2,4 diisocyanate are included as well. Guidance for melting toluene diisocyanate tdi in drums ax364 january 2012. Exposure to toluene diisocyanate and methylenediphenyl diisocyanate can occur by contact with uncured polyurethane products.
Measurement of toluene diisocyanate tdi emission to air and migration to a surface from flexible polyurethane foam. Keep container tightly closed in a dry and wellventilated place. Other companies are charging thousands of dollars to set up accounts and give you access to their msds online database. The assessment is summarized in this information sheet formerly public summary and has not changed. Toluene diisocyanate toluene di isocyanate tdi is an organic compound with the formula ch3c6h3nco2. Diphenylmethane diisocyanate mdi has a lower vapor pressure and is therefore less toxic than tdi. November 14, 2009 the dow chemical company page 2 of 10 product overview this product assessment covers a group of products that share similar chemistry and properties. Skin contact wash off immediately with plenty of water for at least 15 minutes. Occupational exposure to 2,4 toluene diisocyanate can occur for those workers involved in its manufacture. This page contains information on the chemical toluene diisocyanate including. These isomers are used primarily in the synthesis of polyurethane foams. Factory supply toluene diisocyanate casno 26471625 with best price.
This action plan addresses the use of toluene diisocyanate tdi and related compounds in products that may result in consumer and general population exposures, particularly in or around buildings, including homes and schools. The global toluene diisocyanate market is expected to post a cagr almost 4% during the period 20192023, according to technavio. These adopted values lower the 8hour twa from 5 parts per billion ppb to 1 ppb and the 15min stel from 20 ppb to 5. Reaction with aniline may generate enough heat to ignite unreacted portion and surrounding materials. Toluene diisocyanate tdi is a chemical used in the production of polyurethanes, primarily for flexible foam applications including furniture, bedding and carpet underlay, as well as packaging applications. Consequently, it cannot be used in its simple molecular form at the industrial level, but modified to. For detailed information, refer to each products material safety data sheet. Toluene diisocyanate has been found in at least 1 of the 1,699. Toluene diisocyanate is a highly reactive substance. Global toluene diisocyanate market 20192023 expansion.
It is used to make polyurethane foams, elastomers and coatings. Linking to a nonfederal website does not constitute an endorsement by cdc or any of its employees of the sponsors or the information and products presented on the website. In a north carolina department of health and human services ncdhhs and atsdr tdi study, data were collected from ten nc communities in four counties. This fact sheet is a summary source of information of all. Toluene diisocyanate is a synthetic mixture of the 2,4 and 2,6isomers is a volatile, colorless to pale yellow liquid that is soluble in many organic solvents. Guidance for melting toluene diisocyanate tdi in drums. Code of federal regulations title 49 section 172 shipping regulations and proper shipping name. Safety data sheet toluene diisocyanate the chemical company.
Potentially violent polymerization reaction with strong bases or acyl chlorides. Links with this icon indicate that you are leaving the cdc website the centers for disease control and prevention cdc cannot attest to the accuracy of a nonfederal website. Exposure to these chemicals can affect the respiratory function. Two of the six possible isomers are commercially important. Msds toluene diisocyanate software mipsis msds software v. It is also used in concrete sealers for aircraft, sealers and coatings in floor. Polyurethane component, industrial chemicals recommended use of the chemical and restrictions on use recommended use plasticizer. Toluene diisocyanate and methylendiphenyl diisocyanate. A liquid is typically considered a nonconductive, static accumulator if its conductivity is below 100 psm 100x10e12 siemens per meter and is considered a semi conductive. October 28, 2009 the dow chemical company page 4 of 9 elastomers used to produce adhesives, films and linings, and abrasive wheels and other mechanical items that require abrasion and solvent resistance. Dow modified toluene diisocyanate tdi products created. The synthesis of mdi starts with the condensation of aniline with formaldehyde as shown in figure 2.
Eye contact rinse immediately with plenty of water, also under the eyelids, for at least 15 minutes. Msds toluene diisocyanate software free download msds. Toluene diisocyanate and methylendiphenyl diisocyanate toxfaqs highlights. View our toluene diisocyanates products at fisher scientific. We assessed the msds for a chemical that is one of the most wellestablished occupational causes of asthma, toluene 2,4diisocyanate tdi. Develop additional discussion questions, as required, to amplify the key points presented and relate them to the specific situations encountered in their environments. New toluene diisocyanate tdi occupational exposure limits. Common name toluene diisocyanate english name toluene diisocyanate cas number 26471625 molecular weight 174. When heated to decomposition, toluene diisocyanate emits toxic fumes of cyanides and nitrogen oxides. Explore information about air pollutants, contaminants and studies being done. Toluene diisocyanates tdi action plan assessing and.
Tccs toluene diisocyanate tdi 8020 is a toxic and highly reactive organic compound. Mdi products contain additives such as toluene diisocyanate tdi, foam blowing agents. Reason for citation toluene 2,4 diisocyanate is on the hazardous substance list because it is regulated by osha and cited by. Our msds database is an easy to use, do it yourself tool, and best of all.
Dow modified methylene diphenyl diisocyanate mdi products created. For more details see the suppliers safety data sheet. Obtain material safety data sheets msds or technical data sheets for toluene diisocyanate. The final screening assessment for toluene diisocyanates tdis was published on july 5, 2008 under the challenge initiative of the chemicals management plan cmp. Toluene diisocyanate is primarily used as a chemical intermediate in the production of polyurenthane products. Product safety assessment dow modified methyl diphenyl. Usdot 2008 emergency response guidebook initial response information. Health information in material safety data sheets for a chemical. December 3, 2015 the dow chemical company page 2 of 8 in the aquatic and terrestrial environment, tdi reacts with water forming insoluble polyureas that are chemically and biologically inert. Properties, hazards and safety information for tdi. Download msds toluene diisocyanate tdi silver fern.
Page 1 of 7 msds toluene di isocyanate material safety data sheet msds toluene di isocyanate 1. Articles of toluene diisocyanate are included as well. Toluene diisocyanates tdi information sheet canada. Firstaid measures general advice if symptoms persist, call a physician. Your new online msds binder is a place for you to store the material safety data sheets you need to deploy.
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