DEHA 85% solutions is available as a yellow liquid with an amine-like odor.
DEHA products are manufactured by the reaction of a triethylamine and a peroxide, followed by purification and distillation. Eastman manufactures DEHA Anhydrous and DEHA 85%.
Both DEHA Anhydrous and DEHA 85% function primary as radical and oxygen scavengers.
DEHA is used in boiler water treatment applications, as an oxygen scavenger for medium and high pressure boilers. DEHA also functions as a free radical scavenger in polymerization, it is a short stopper in the production of styrene butadiene rubber.
Beyond its application as scavenger, DEHA is also used in refinery chemicals and other niche markets, such as:
- Microelectronics industry: for example, DEHA is formulated to remove residual photoresist and other residue from microelectronic parts.
- Photographic industry: DEHA is blended with other chemicals to produce good color development.
The reduction of toxic heavy metals such as hexavalent chromium to their more environmentally-friendly counterparts such as trivalent chromium is done using an aqueous solution containing DEHA.