HDI Price | Current and Forecast
Monitor HDI Prices Worldwide
See monthly HDI prices in 5 locations: US, China, Africa, SE Asia. Also check HDI price history since 2007 and forecasts. Subscribe now to Intratec Primary Commodity Prices and gain access to current prices of 244 commodities, including HDI.
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Data Legend. The HDI price chart shows the prices in USA Dollar per metric ton (USD/mt) in 4 locations, as follows:
- US: transaction, cif
- China: transaction, fob
- Africa: transaction, cif, South Africa
- SE Asia: transaction, cif, Thailand
Data Use. HDI prices are provided as an annual subscription where subscribers have access to reliable pricing data of 244 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 .
Price Dynamics. The HDI price in United States increased during September 2018 to 3,550 USD per metric ton, which represents a slight rise of 2% compared to the previous month’s value. On a year-over-year basis, HDI prices in United States decreased significantly by 11%. Meanwhile, in China, the average price of HDI amounted to 4,660 USD per metric ton, from 4,240 USD per metric ton one year earlier. On a month-over-month basis, the HDI price in China is 17% higher than the price one month before.
The price of HDI in South Africa rose considerably throughout September 2018, reaching 4,220 USD per metric ton. The price in South Africa is 16% higher than the average price in the previous month and 32% higher than the average price one year before. In contrast, HDI prices in Thailand increased modestly during September 2018, reaching 4,220 per, which means a rise of 0.2% from the previous month’s price and a rise of 10% from the previous year’s price.
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About HDI. Hexamethylene Diisocyanate (a.k.a. HDI) is an organic compound, one of the main aliphatic diisocyanates. It is highly reactive and can undergo several addition reactions across the CN double bonds, in such a way that a myriad of commercial products can be obtained from reactions with alcohols, carboxylic acids, and amines. Industrial HDI manufacture is primarily based on the corresponding amine: hexamethylenediamine (HMDA). The most common method of preparing HDI on a commercial scale involves the reaction of HMDA with phosgene. Hexamethylene diisocyanate may also be produced from the reaction of HMDA with urea and an alcohol followed by decomposition of the intermediate carbamate.
Like other organic isocyanates, HDI is a hazardous chemical, and its handling is regulated in virtually all industrialized countries. Being sensitive to moisture, HDI must be stored in a volume tank under dry nitrogen blanketing, or kept in the original containers.
The classic route for HDI commercial production is based on phosgenation, in which HMDA is reacted with phosgene, yielding Hexamethylene Diisocyanate. This organic isocyanate can also be produced via the so-called non-phosgene routes, based on the reaction of HMDA with urea/alcohol or carbonate. Raw materials and the respective production processes employed in the manufacturing of HDI are listed below.
- Hexamethylenediamine + phosgene (phosgenation)
The uses and applications of Hexamethylene Diisocyanate may vary according to its specification. The main forms of Hexamethylene Diisocyanate are purity greater than 98% (GC).
Hexamethylene Diisocyanate is mainly used in the production of aliphatic polyisocyanates and polyurethanes with high stability (e.g. polymerizing agent in polyurethane spray paint formulations and coatings). HDI is also used in dental materials; contact lenses; and medical adsorbents.
