Editing Hydrazine (section)

===Redox reactions===
Ideally, the combustion of hydrazine in oxygen produces nitrogen and water:
:{{chem2|N2H4 + O2 → N2 + 2 H2O}}

An excess of oxygen gives oxides of nitrogen, including [[nitrogen monoxide]] and [[nitrogen dioxide]]:
:{{chem2|N2H4 + 2 O2 → 2 NO + 2 H2O}}
:{{chem2|N2H4 + 3 O2 → 2 NO2 + 2 H2O}}

The heat of combustion of hydrazine in oxygen (air) is 19.41 MJ/kg (8345 BTU/lb).<ref>{{cite web |url=http://cameochemicals.noaa.gov/chris/HDZ.pdf |title=Hydrazine—Chemical Hazard Properties Table |date=1999 |website=NOAA.gov}}</ref>

Hydrazine is a convenient reductant because the by-products are typically nitrogen gas and water. This property makes it useful as an [[antioxidant]], an oxygen [[scavenger (chemistry)|scavenger]], and a [[corrosion inhibitor]] in water boilers and heating systems. It also directly reduces salts of less active metals (e.g., bismuth, arsenic, copper, mercury, silver, lead, platinum, and palladium) to the element.<ref>{{cite book|url=https://archive.org/details/cftri.2662nonaqueoussolven0000ludw/page/133/|page=133|title=Non-aqueous solvents|first1=Ludwig F.|last1=Audrieth|first2=Jacob|last2=Kleinberg|publisher=John Wiley & Sons|location=New York|year=1953|lccn=52-12057}}</ref>  That property has commercial application in [[electroless nickel plating|electroless]] [[nickel]] plating and [[plutonium]] extraction from [[nuclear waste|nuclear reactor waste]]. Some colour photographic processes also use a weak solution of hydrazine as a stabilising wash, as it scavenges [[dye coupler]] and unreacted silver halides. Hydrazine is the most common and effective reducing agent used to convert [[graphene oxide]] (GO) to reduced graphene oxide (rGO) via hydrothermal treatment.<ref>{{cite journal |vauthors=Stankovich S, Dikin DA, Piner RD, Kohlhaas KA, Kleinhammes A, Jia Y, Wu Y, Nguyen ST, Ruoff RS |date=2007 |title=Synthesis of graphene-based nanosheets via chemical reduction of exfoliated graphite oxide |journal=[[Carbon (journal)|Carbon]] |volume=45 |issue=7 |pages=1558–1565 |doi=10.1016/j.carbon.2007.02.034|bibcode=2007Carbo..45.1558S |s2cid=14548921 }}</ref>