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Technical Data Sheet
DEHA anhydrous


Chemical Synonym
  • N-Ethyl-N-Hydroxy-Ethanamine; Diethylhydroxylamine Anhydrous
Applications
  • Electronic chemicals
  • Photographic chemicals
  • Polymer processing
  • Upstream O&G-production
  • Water treatment industrial

Product Description
DEHA Anhydrous is available as a light 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.



    Typical Properties

    PropertyTypical Value, Units
    General
    Molecular Formula(CH3CH2)2NOH
    Molecular Weight89.1 g/mol
    AppearanceLight yellow liquid
    Autoignition Temperature265 °C
    Boiling Pointa 
         @ 760 mm Hg134 °C
    Coefficient of cubical expansion0.00101/ °C
    Density 
         @ 20°C0.869 g/cm3
    Flash Point 
         Closed Cup46.5 °C
    Freezing Point-9 °C
    Octanol-water partition coefficient, log Pow 
         @ 50°C0.5
    pHAlkaline
    Refractive Index 
         @ 25°C1.4183
    Surface Tension25.6 mN/m
    Vapor Density 
         (air = 1)3.1
    Vapor Pressure 
         @ 20°C5.30 hPa
    Water solubility 
         @ 20°CSoluble (450 g/l)

    aDecomposes



    Packaging
    • Bulk
    • Plastic drums (175 kg net)



    Eastman and its marketing affiliates shall not be responsible for the use of this information, or of any product, method, or apparatus mentioned, and you must make your own determination of its suitability and completeness for your own use, for the protection of the environment, and for the health and safety of your employees and purchasers of your products. No warranty is made of the merchantability of fitness of any product, and nothing herein waives any of the Seller's conditions of sale.


    2/28/2018 11:35:39 AM