Hydrazine hydrate (HH) is a colorless, fuming, and oily liquid with an ammonia-like odor.
Hydrazine hydrate is mainly used as a raw material for plastic foaming agents, with 28% of hydrazine used in water treatment and pH control.
Hydrazine-hydrate is a reductive agent used as materials of medicine, pesticides, dyestuff, blowing agent, and photographic developer.
The market for anhydrous hydrazine in the EU is very low in comparison to the market for hydrazine hydrate.
The UK Health and Safety Executive also confirms the use of hydrazine hydrate as an oxygen scavenger in boiler feedwater in power stations.