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Toluene Diisocyanate
Toluene Diisocyanate Prices | Historical and Current
Toluene Diisocyanate
TDI
TDI
C9H6N2O2

About Toluene Diisocyanate. Toluene Diisocyanate (a.k.a. TDI) is an organic compound, in the aromatic isocyanate class. It is a colorless oily liquid, with a sharp, pungent odor, soluble in acetone, benzene, and other organic solvents. TDI readily reacts with water at ambient temperature, forming insoluble urea compounds and a large amount of carbon dioxide gas. Like other isocyanates, TDI can be classified as a potential human carcinogen. The main effects of hazardous exposures are occupational asthma and other lung problems, as well as irritation of the eyes, nose, throat, and skin. It is largely produced, accounting for 34.1% of the global isocyanate market in 2000.

TDI is a key aromatic isocyanate with formula CH3C6H3(NCO)2. More specifically, 2,4-TDI and 2,6-TDI - two out of the six possible isomers - are widely used in the polymer industry, mainly in the production of flexible polyurethane foams. Industrial TDI manufacture is primarily based on toluene raw material. The most common method of preparing TDI on a commercial scale involves the nitration of toluene to dinitrotoluene (DNT), which is hydrogenated to toluene diamine (TDA) that is finally treated with phosgene. TDI is produced mainly in three forms: as an 80:20 mixture of 2,4-TDI and 2,6-TDI, referred to as TDI (80/20), as a 65:35 mixture of such isomers, known as TDI (65/35), and as pure 2,4-TDI.

Toluene Diisocyanate Handling. Contact of this product with water should be avoided during handling, storage, and transportation. TDI reacts readily with water, at room temperature, forming both an insoluble urea compound and large quantities of carbon dioxide gas, which can create a serious pressure hazard and cause container rupture. To protect TDI from atmospheric moisture, all containers should have blankets with a dry inert gas pad. Storage temperature should be above freeze point (approximately 14 °C [57 °F]) because if TDI freezes, the 2,4- and 2,6-isomers may separate. Prolonged storage of TDI at higher temperatures than 40 °C (104 °F) may cause the NCO content and viscosity to vary from product specifications. TDI is transported in railroad tank cars, tank trucks, tanks in ships, containers, and drums. They are stored in steel tanks and processed in steel equipment. For long-term storage, stainless steel is recommended.

Toluene Diisocyanate Production. Toluene Diisocyanate is typically manufactured via the reaction of phosgene and toluene diamine. Production pathways may differ by integrating toluene diamine production and also its precursor, dinitrotoluene. TDI can also be produced by a non-phosgene process in which it reacts with dimethyl carbonate. Raw materials and the respective production processes employed in the manufacturing of Toluene Diisocyanate are listed below.

  • Dinitrotoluene (reductive carbonylation process),
  • Dinitrotoluene + phosgene (liquid-phase phosgenation process),
  • Dinitrotoluene + chlorine (liquid or gas-phase phosgenation process)
  • Toluene (reductive or oxidative carbonylation process),
  • Toluene + chlorine (liquid or gas-phase phosgenation process)

Toluene Diisocyanate Uses.The uses and applications of Toluene Diisocyanate may vary according to its specification. The main forms of Toluene Diisocyanate are 100% 2,4-isomer solution and 80% or 65% 2,4-isomer solutions mixed with 2,6-isomer.

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Data Type: chem-pricing
Prices

Toluene Diisocyanate Prices | Historical and Current

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Monitor monthly Toluene Diisocyanate price assessments covering 5 locations: United States, Europe, Southeast Asia, China and Middle East. Also check TDI price history since 2007.

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Data Legend. The chart above shows TDI price assessments in USA Dollar per metric ton (USD/mt) in 5 locations, as follows:

  • TDI, US (United States): TDI, export transaction price, fob, United States
  • TDI, EUR (Europe): TDI, export transaction price, fob, Belgium
  • TDI, SEA (Southeast Asia): TDI, import transaction price, cif, India
  • TDI, CN (China): TDI, domestic spot price, exw, China
  • TDI, MDE (Middle East): TDI, import transaction price, cif, Turkey

Data Use. TDI prices are provided as an annual subscription where subscribers have access to reliable pricing data of 225 commodities worldwide. To better understand data provided by Intratec Primary Commodity Prices, check the following documents: Price Assessment Basis , Commodities Specifications , Methodology , User Guide , and Glossary .

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Toluene Diisocyanate Price Outlook. The price of TDI (United States) decreased during April 2019 to 1,710 USD per metric ton, which represents a slight decline of 3% compared to the previous month’s value. On a year-over-year basis, the prices of TDI (United States) decreased significantly by 52%. Meanwhile, the average price of TDI (China) amounted to 1,570 USD per metric ton, from 3,560 USD per metric ton one year earlier. On a month-over-month basis, the price of TDI (China) is 11% lower than the price one month before.

The price of TDI (Southeast Asia) declined considerably throughout April 2019, reaching 1,720 USD per metric ton.  The price is 9% lower than the average price in the previous month and 57% lower than the average price one year before. In contrast, the prices of TDI (Middle East) decreased significantly during April 2019, reaching 1,760 USD per metric ton, which means a decline of 14% from the previous month’s price and a decline of 54% from the previous year’s price. 

The prices of TDI (Europe) were flat and a decrease of 46% on a yearly basis.

About Toluene Diisocyanate. Toluene Diisocyanate (a.k.a. TDI) is an organic compound, in the aromatic isocyanate class. It is a colorless oily liquid, with a sharp, pungent odor, soluble in acetone, benzene, and other organic solvents. TDI readily reacts with water at ambient temperature, forming insoluble urea compounds and a large amount of carbon dioxide gas. Like other isocyanates, TDI can be classified as a potential human carcinogen. The main effects of hazardous exposures are occupational asthma and other lung problems, as well as irritation of the eyes, nose, throat, and skin. It is largely produced, accounting for 34.1% of the global isocyanate market in 2000.

TDI is a key aromatic isocyanate with formula CH3C6H3(NCO)2. More specifically, 2,4-TDI and 2,6-TDI - two out of the six possible isomers - are widely used in the polymer industry, mainly in the production of flexible polyurethane foams. Industrial TDI manufacture is primarily based on toluene raw material. The most common method of preparing TDI on a commercial scale involves the nitration of toluene to dinitrotoluene (DNT), which is hydrogenated to toluene diamine (TDA) that is finally treated with phosgene. TDI is produced mainly in three forms: as an 80:20 mixture of 2,4-TDI and 2,6-TDI, referred to as TDI (80/20), as a 65:35 mixture of such isomers, known as TDI (65/35), and as pure 2,4-TDI.

Toluene Diisocyanate Handling. Contact of this product with water should be avoided during handling, storage, and transportation. TDI reacts readily with water, at room temperature, forming both an insoluble urea compound and large quantities of carbon dioxide gas, which can create a serious pressure hazard and cause container rupture. To protect TDI from atmospheric moisture, all containers should have blankets with a dry inert gas pad. Storage temperature should be above freeze point (approximately 14 °C [57 °F]) because if TDI freezes, the 2,4- and 2,6-isomers may separate. Prolonged storage of TDI at higher temperatures than 40 °C (104 °F) may cause the NCO content and viscosity to vary from product specifications. TDI is transported in railroad tank cars, tank trucks, tanks in ships, containers, and drums. They are stored in steel tanks and processed in steel equipment. For long-term storage, stainless steel is recommended.

Toluene Diisocyanate Production. Toluene Diisocyanate is typically manufactured via the reaction of phosgene and toluene diamine. Production pathways may differ by integrating toluene diamine production and also its precursor, dinitrotoluene. TDI can also be produced by a non-phosgene process in which it reacts with dimethyl carbonate. Raw materials and the respective production processes employed in the manufacturing of Toluene Diisocyanate are listed below.

  • Dinitrotoluene (reductive carbonylation process),
  • Dinitrotoluene + phosgene (liquid-phase phosgenation process),
  • Dinitrotoluene + chlorine (liquid or gas-phase phosgenation process)
  • Toluene (reductive or oxidative carbonylation process),
  • Toluene + chlorine (liquid or gas-phase phosgenation process)

Toluene Diisocyanate Uses.The uses and applications of Toluene Diisocyanate may vary according to its specification. The main forms of Toluene Diisocyanate are 100% 2,4-isomer solution and 80% or 65% 2,4-isomer solutions mixed with 2,6-isomer.

Intratec Methodology. Intratec Primary Commodity Prices are produced from a data-driven, mathematical approach, which starts with the extraction of data from various primary sources, including official trade records, futures market, statistics bureaus, governmental and international agencies. Such large volume of data is validated through advanced data processing techniques, and treated by means of statistical analysis for outliers removal. When faced with input gaps, data scientists and engineers employ mathematical models or machine learning techniques to estimate prices and ensure the completeness of the price assessments presented. (learn more ).

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