N,N-Diethylhydroxylamine Chemical Properties
Melting point −26-−25 °C(lit.)
Boiling point 125-130 °C
density 0.902 g/mL at 25 °C
vapor density 3.07 (vs air)
vapor pressure 4 mm Hg ( 0 °C)
refractive index n20/D 1.420(lit.)
Fp 115 °F
storage temp. Store below +30°C.
pka 14.19±0.69(Predicted)
form Liquid
color Clear
Specific Gravity 0.867
explosive limit 1.9-10%(V)
Water Solubility soluble
Sensitive Hygroscopic
BRN 1731349
Exposure limits ACGIH: TWA 2 ppm
Stability: Stable. Hygroscopic. Flammable. Incompatible with strong oxidizing agents, strong acids.
InChIKey FVCOIAYSJZGECG-UHFFFAOYSA-N
LogP 0.5 at 23℃
CAS DataBase Reference 3710-84-7(CAS DataBase Reference)
NIST Chemistry Reference Ethanamine, N-ethyl-N-hydroxy-(3710-84-7)
EPA Substance Registry System Diethylhydroxylamine (3710-84-7)

‌Diethylhydroxylamine form‌:

The pure product of diethylhydroxylamine (DEHA) is a colorless transparent liquid, while the industrial product is a light yellow transparent liquid. During storage, its color may gradually turn yellow over time, especially when exposed to direct sunlight or air, the color change will be faster. In addition, when the liquid is shaken vigorously, it may temporarily become turbid, but it will automatically clarify after a few hours.

Diethylhydroxylamine (DEHA) has a wide range of uses, mainly including the following aspects:

‌1. Inhibitor‌:
DEHA is a highly efficient inhibitor, widely used in the production, storage and polymerization of conjugated olefins such as styrene, divinylbenzene, butadiene, etc., with high inhibitory effect and is not affected by temperature changes.

‌2. Terminator and antioxidant‌:
In polymerization reactions, DEHA can be used as an excellent terminator to quickly stop or sharply slow down the reaction and control the properties of the polymer. At the same time, it can also be used as an antioxidant to extend the shelf life of organic compounds such as olefin monomers and polyolefins.

‌3. Photochemical smog inhibitors‌:
DEHA can effectively remove free radicals and control the formation of photochemical smog. Only a small amount of spraying in the atmosphere can achieve the effect. ‌

‌4. Stabilizers and intermediates‌:
In the photographic industry, DEHA is used as a color regulator and stabilizer for photographic emulsions, photosensitive emulsions, and color photography. In addition, it is also an important intermediate in organic synthesis and participates in the synthesis of various dyes. ‌
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5. Pesticides and rubber additives‌:
DEHA is widely used as a synthetic raw material for insecticides, fungicides and herbicides. It is also used as a functional additive in the rubber field to improve the performance of rubber products. ‌

‌6. New energy and pharmaceutical fields‌:
In the field of new energy, DEHA is used as a material for the preparation of solar panels. In the pharmaceutical field, it is an important raw material for the synthesis of certain drugs.

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