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Colorless flammable liquid with an ammonia-like odor
ammonia-like odour. Hydrazine is highly hazardous unless handled in solution as, for example, hydrazine hydrate (N2H4·xH2O). Hydrazine is mainly used as
Hydrazine
Chemical compound
Hydrazine sulfate, more properly hydrazinium hydrogensulfate, is a salt of the cation hydrazinium and the anion bisulfate (hydrogensulfate), with the
Hydrazine_sulfate
Hydrazine synthase is a key enzyme that facilitates the synthesis of hydrazine, and intermediate in the anammox pathway. The enzyme utilizes spatial separation
Hydrazine_synthase
Class of chemical compounds
Hydrazines (R2N−NR2) are a class of chemical compounds with two nitrogen atoms linked via a covalent bond and which carry from one up to four alkyl or
Hydrazines
Chemical compound
Hydrazine nitrate is an inorganic compound with the chemical formula [N2H5]NO3. It is a colorless crystalline solid. It is the hydrazine salt of nitric
Hydrazine_nitrate
Chemical compound
(isopropylidenehydrazine) is the product of condensation of acetone and hydrazine, as typical for hydrazone formation. It is an intermediate in the synthesis
Acetone_hydrazone
Hydrazine oxidoreductase (EC 1.7.99.8, HAO (ambiguous)) is an enzyme with systematic name hydrazine:acceptor oxidoreductase. This enzyme catalyses the
Hydrazine_oxidoreductase
Type of rocket engine fuel
of dinitrogen tetroxide (an oxidizer) and one of the various forms of hydrazine (a fuel). Advantages of hypergolic propellants include their ability to
Hypergolic_propellant
Chemical compound
Nickel hydrazine nitrate (NHN), (chemical formula: [Ni(N2H4)3](NO3)2 is an energetic material having explosive properties in between that of primary explosive
Nickel_hydrazine_nitrate
Group of antidepressants
The hydrazine antidepressants are a group of non-selective, irreversible monoamine oxidase inhibitors (MAOIs) which were discovered and initially marketed
Hydrazine_(antidepressant)
Chemical compound
Hydrazobenzene (1,2-diphenylhydrazine) is an aromatic organic compound consisting of two aniline groups joined via their nitrogen atoms. It is an important
Hydrazobenzene
Anaerobic ammonium oxidation, a microbial process of the nitrogen cycle
enzyme producing hydrazine, hydrazine synthase was purified and shown to produce hydrazine from NO and ammonium. The production of hydrazine from ammonium
Anammox
American science fiction television series
Salvage 1 is an American science fiction series that was broadcast for 16 episodes (of the 20 produced) on ABC during 1979. The series was based on the
Salvage_1
Chemical compound
Monomethylhydrazine (MMH) is a highly toxic, volatile hydrazine derivative with the chemical formula CH6N2. It is used as a rocket propellant in bipropellant
Monomethylhydrazine
Process for production of hydrazine
The Olin Raschig process is a chemical process for the production of hydrazine. The main steps in this process, patented by German chemist Friedrich Raschig
Olin_Raschig_process
Rocket fuel
first prepared by Emil Fischer, who discovered and named the class of hydrazines, by reducing N-Nitrosodimethylamine with zinc in boiling acetic acid.
Unsymmetrical dimethylhydrazine
Unsymmetrical_dimethylhydrazine
Irreversible non-selective MAO inhibitor and antidepressant drug
non-selective and irreversible monoamine oxidase inhibitor (MAOI) of the hydrazine family which is primarily used as an antidepressant and anxiolytic to
Phenelzine
American businessman and entrepreneur
Previously, he was the founder and managing partner of Alt Capital, and Hydrazine Capital with his brother Sam. Until 2023, he served as CEO of Lattice
Jack_Altman_(investor)
Reduction method involving hydrazine
first involves the in situ generation of a hydrazone by condensation of hydrazine with the ketone or aldehyde substrate. Sometimes it is however advantageous
Wolff–Kishner_reduction
Cation
cation is often called "hydrazine", as in "hydrazine sulfate" for hydrazinium hydrogensulfate. The terms "hydrazinium" and "hydrazine" may also be used for
Hydrazinium
Synthetic chemical fuel produced from solar energy
fuels and batteries. Examples of such fuels are hydrogen, ammonia, and hydrazine. Diverse photocatalysts are being developed to carry these reactions in
Solar_fuel
Chemical element with atomic number 7 (N)
and appears in the English names of some nitrogen compounds such as hydrazine, azides and azo compounds. Elemental nitrogen is usually produced from
Nitrogen
2008 military operation to destroy a non-functioning U.S. satellite
of a 5,000-pound satellite containing over 1,000 pounds of hazardous hydrazine propellant". The launch occurred on 21 February 2008 at approximately
Operation_Burnt_Frost
Antidepressant
non-selective, irreversible monoamine oxidase inhibitor (MAOI) of the hydrazine class. It is a xenobiotic that was originally designed to treat tuberculosis
Iproniazid
Storable hypergolic rocket fuel
Aerozine 50 is a 50:50 mix by weight of hydrazine and unsymmetrical dimethylhydrazine (UDMH), developed in the late 1950s by Aerojet General Corporation
Aerozine_50
Chemical compound
Hydrazinium azide or hydrazine azide is a chemical compound with formula H5N5 or [N2H5][N3]. It is an unstable white solid. It consists of hydrazinium
Hydrazinium_azide
Chemical compound
hypergolic (spontaneously ignites) upon contact with various forms of hydrazine, which has made the pair a common bipropellant for rockets. Dinitrogen
Dinitrogen_tetroxide
Chemical compound
at the C-3 or N-1 positions. It may also be used for determination of hydrazine. para-Dimethylaminobenzaldehyde is the main ingredient in Ehrlich's reagent
Para-Dimethylaminobenzaldehyde
Para-Dimethylaminobenzaldehyde
Technique in research of live materials
methods can be used for deproteination, such as the method that uses hydrazine, the method that uses NaOH and the method that uses enzymes. Termine,
Deproteination
Chemical reaction
chemical reaction that involves the reduction of α,β-epoxy ketones using hydrazine to give allylic alcohols. This reaction, introduced in 1961 by P. S. Wharton
Wharton_reaction
Monopropellant
Naval Air Rocket Test Station as an alternative to the more commonly used hydrazine monopropellant for use in spacecraft's attitude control and thruster systems
Cavea-B
American entrepreneur and investor (born 1985)
2023, when Hydrazine launched its fourth fund, the University of Michigan endowment was the only outside investor. Its investments in Hydrazine were the
Sam_Altman
Rocket that uses a single propellant with a catalyst
up the gas to create thrust. The most commonly used monopropellant is hydrazine (N2H4, or H2N−NH2), a compound unstable in the presence of a catalyst
Monopropellant_rocket
Index of chemical compounds with the same name
bonded to each of the two nitrogen atoms monomethylhydrazine, a volatile hydrazine chemical This set index article lists chemical compounds articles associated
Dimethylhydrazine
Chemical compound
sodium hydroxide to form the final product. Phenylhydrazine was the first hydrazine derivative characterized, reported by Hermann Emil Fischer in 1875. He
Phenylhydrazine
1995 domestic terrorism bombing in Oklahoma City
of about 7,000 pounds (3,200 kg). McVeigh originally intended to use hydrazine rocket fuel, but it proved too expensive. McVeigh and his accomplices
Oklahoma_City_bombing
Chemical compound
[N2H5]Cl. It is a colorless hygroscopic crystalline solid. It is the hydrazine salt of hydrogen chloride. It consists of hydrazinium cations [H2N−NH3]+
Hydrazinium_chloride
American magazine publisher (1939–1997)
"Penthouse's Promotion of Hydrazine Sulfate". Cancer Treatment Watch. Keeton's proposed lawsuit against NCI; info regarding hydrazine sulfate Kathy Keeton
Kathy_Keeton
Class of chemical compounds
R2, R3 and R' are any groups (typically hydrogen or organyl). Unlike hydrazine and alkylhydrazines, hydrazides are nonbasic owing to the inductive influence
Hydrazide
Chemical compound
It is an intermediate in some hydrazine manufacturing processes. Acetone azine can be prepared from acetone and hydrazine: 2 (CH3)2CO + N2H4 → 2 H2O +
Acetone_azine
Method for production of hydrazine
hydrazine. In this process hydrogen peroxide is used as an oxidant instead of sodium hypochlorite, which is traditionally used to generate hydrazine.
Peroxide_process
Class of liquid rocket propellants
propellants that were intended in the early 2010s to be able to replace hydrazine as the standard storable rocket propellent in some applications. In nitrous-oxide
Nitrous_oxide_fuel_blend
Heterocyclic polymer produced by reacting methenamine and hydrazine sulfate
heterocyclic polymer produced by reaction of hexamethylenetetramine with hydrazine sulfate. The hexamethylenetetramine tetrahedral cage-like structure, similar
Formazine
Chemical compound
nitrogen atoms with four hydroxyl groups around them, giving rise to hydrazine-1,1,2,2-tetrol as an alternate chemical name. The corresponding anion
Nitroxylic_acid
Single-part rocket propellant
the usual propellant being hydrazine which is generally decomposed by exposure to an iridium catalyst bed (the hydrazine is pre-heated to keep the reactant
Monopropellant
Method of radical polymerization
bond at the desired location of the nitroxide with hydrazine, generating an alkyl substituted hydrazine which is then exposed to a nitroxide radical and
Nitroxide-mediated radical polymerization
Nitroxide-mediated_radical_polymerization
Chemical compound
Hydrazinium nitroformate (HNF) is a salt of hydrazine and nitroform (trinitromethane). It has the molecular formula [H2NNH3]+[C(NO2)3]− and is soluble
Hydrazinium_nitroformate
American entrepreneur and venture capitalist (born 1967)
at Social Capital. He also sponsored Sam Altman's first venture fund, Hydrazine Capital as well as J.D.Vance's Narya Capital. He also backs Doepfner Capital
Peter_Thiel
Family of explosives
poisonous nature of the hydrazine component. Astrolite G, the most common type of Astrolite, is a mixture of ammonium nitrate and hydrazine at a ratio of 2:1
Astrolite
Chemical compound
the hydrazine class. It was synthesized in 1967 and was subsequently used as an antidepressant in Europe, but is now no longer marketed. Hydrazine (antidepressant)
Benmoxin
Chemical compound
RR′C=N−N=CRR′. These compounds are the product of the condensation of hydrazine with ketones and aldehydes, although in practice they are often made by
Azine
Chemical compound
Agaritine is an aromatic hydrazine-derivative mycotoxin in mushroom species of the genus Agaricus. It is an α-aminoacid and a derivative of phenylhydrazine
Agaritine
Research field in chemistry and chemical engineering
second principle is the peroxide process for producing hydrazine without cogenerating salt. Hydrazine is traditionally produced by the Olin Raschig process
Green_chemistry
Aircraft device
sounding rocket, it might prevent premature firing of a hydrazine thruster system (hydrazine is extremely toxic) or block cryogenic or photographic film
Arming_plug
Chemical compound
acetone cyanohydrin. Reaction with hydrazine gives the substituted dialkylhydrazine. In the second step, the hydrazine is oxidized to the azo derivative:
Azobisisobutyronitrile
Index of chemical compounds with the same name
Methylhydrazines are hydrazines that have additional methyl groups. Heavily methylated versions exist as hydrazinium salts. Members of this class include:
Methylhydrazines
NASA space probe launched in 1977
(JPL), Voyager 2, whose bus is shaped like a decagonal prism, included 16 hydrazine thrusters, three-axis stabilization, gyroscopes and celestial referencing
Voyager_2
Chemical compound
prepared by elimination of HCl from ethyl chloroformate (2 eq, R1) and hydrazine (1 eq, R1) in the presence of NaOH (2 eq, R1). Then the N
Symmetrical_dimethylhydrazine
NASA orbiter mission to asteroid Vesta and dwarf planet Ceres (2007–2018)
extended until the probe's hydrazine fuel supply was depleted. On November 1, 2018, NASA announced that Dawn had depleted its hydrazine, and the mission was
Dawn_(spacecraft)
Satellite bus
attitude control propulsion provided by small monopropellant hydrazine motors. This hydrazine supply is contained in a central propellant tank of 0.90 m
Lockheed_Martin_A2100
Chemical compound
industrial application, oxaziridines are intermediates in the production of hydrazine. Oxaziridine derivatives are also used as specialized organic chemistry
Oxaziridine
Liver damage caused by a drug or chemical
hepatotoxicity in 1-2% of patients. There are also cases where other hydrazine derivative drugs, such as the MAOI antidepressant iproniazid, are associated
Hepatotoxicity
Chemical compound
intermediate for the production of hydrazine-based products. During metabolism it forms metabolites including hydrazine, benzoic acid and hippuric acid.
Benzoylhydrazine
American space and aeronautics agency
the Earth's environment. Some hypergolic rocket propellants, such as hydrazine, are highly toxic prior to combustion, but decompose into less toxic compounds
NASA
Propellant injection device for a rocket engine
Brilliant Pebbles program, TRW developed a very small 5 lbf (22 N) N2O4/hydrazine thruster using a pintle injector. This radiatively-cooled engine weighed
Pintle_injector
Chemical compound
compound C6H3(NO2)2NHNH2. DNPH is a red to orange solid. It is a substituted hydrazine. The solid is relatively sensitive to shock and friction. For this reason
2,4-Dinitrophenylhydrazine
Topics referred to by the same term
firm which later split into Naver Corporation and NHN Corporation Nickel hydrazine nitrate, an explosive Normalhöhennull, the standard geographical height
NHN
Chemical compound
prepared by nucleophilic displacement of the nitro groups with azide and hydrazine. Shastin AV, Godovikova TI, Golova SP, Kuz'min VS, Khmel'nitskii LI, Korsunskii
2,4,6-Tris(trinitromethyl)-1,3,5-triazine
2,4,6-Tris(trinitromethyl)-1,3,5-triazine
Chemical compound
irreversible and non-selective monoamine oxidase inhibitor (MAOI) of the hydrazine group that was used as an antidepressant to treat depression in the 1960s
Pheniprazine
Chemical reaction
chemical reaction used to synthesize carbazoles from 2-naphthols and aryl hydrazines using sodium bisulfite. The reaction is named after Hans Theodor Bucherer
Bucherer_carbazole_synthesis
German rocket fuel
uniform combustion through sufficient quantity of the highly reactive hydrazine. The combination of the C-Stoff, used as a rocket fuel, with the T-Stoff
C-Stoff
U.S. military satellite (2006–2008)
reports indicate that the satellite contained the hazardous materials hydrazine and beryllium. Though there was some speculation that the satellite might
USA-193
Chemical compound
(INN) is a hydrazine derivative monoamine oxidase inhibitor antidepressant which was never marketed. Monoamine oxidase inhibitor Hydrazine (antidepressant)
Carbenzide
Light machine gun
the M1 carbine, a.k.a. 'the Spitfire'.[page needed] A prototype using hydrazine for a caseless firearm was also developed. The firearms would have been
M1941_Johnson_machine_gun
Chemical compound
is a derivative of urea. The compound prepared by treating urea with hydrazine: OC(NH2)2 + N2H4 → OC(NH2)(N2H3) + NH3 A further reaction can occur to
Semicarbazide
Swedish spacecraft propulsion company
Dinitramide (ADN). LMP-103S is recognized for its high performance and the hydrazine-level energy that it delivers, while offering lower operational costs
ECAPS
Chemical compound
eliminated from the body through excretion. Biurea is produced from urea and hydrazine by transamidation. Its major use is as a chemical intermediate in the
Biurea
NASA space probe launched in 1977
(JPL). It has a bus shaped like a decagonal (ten-sided) prism. It has 16 hydrazine thrusters, three-axis stabilization gyroscopes, and referencing instruments
Voyager_1
NASA high-altitude research UAV
similar to Mini-Sniffer II but with a longer fuselage and the hydrazine engine. Hydrazine was decomposed in a catalytic gas generator, made from converted
NASA_Mini-Sniffer
hydrazine:acceptor gamma-glutamyltransferase. Other names in common use include (gamma-L-glutamyl)-N1-(4-hydroxymethylphenyl)hydrazine:(acceptor)
Agaritine gamma-glutamyltransferase
Agaritine_gamma-glutamyltransferase
Chemical compound
inhibitor (MAOI) of the hydrazine family. It was formerly used as an antidepressant in the 1960s, but has since been discontinued. Hydrazine (antidepressant)
Pivhydrazine
Fluorine F2 0.09068 45.97 39.377 60–85 Lead Pb 0.7610 421.35 266.85 600–1200 Hydrazine N2H4 0.03625 683.29 83.603 280–450 Octane C8H18 0.007889 1456.2 −51.44
Temperature dependence of viscosity
Temperature_dependence_of_viscosity
Chemical group (NH2)
In sufficiently high concentration, amino radicals dimerise to form hydrazine. While NH2 as a functional group is common in nature, forming a part of
Amino_radical
Austrian chemist and inventor
join the actors' union to ride in the commercials. It was fitted with a hydrazine fuel cell, capable of 200 miles to the U.S. gallon. In 1970 he fitted
Karl_Kordesch
Liquid form of rocket propellants
bipropellant combination of the same oxidizer with a fuel mixture of hydrazine hydrate and methyl alcohol for rocket engine systems intended for manned
Liquid_rocket_propellant
Functional group
RNH−NH(C=O)NH−NHR. They can be derived from the condensation of carbonic acid with a hydrazine. Carbohydrazide is the simplest carbazide, with another common carbazide
Carbazide
Turkish liquid-fueled intercontinental ballistic missile
oxidizer, which implies the use of a hypergolic fuel counterpart such as a hydrazine derivative (e.g., Aerozine 50 or UDMH). It features a multi-stage architecture
Yıldırımhan
Chemical compound
nonflammable, reactive inorganic gas. It is a fluorinated analog of hydrazine. Tetrafluorohydrazine was originally prepared from nitrogen trifluoride
Tetrafluorohydrazine
trichloride Hexachlorocyclopentadiene Hexamethylenediamine, N,N'-dibutyl- Hydrazine Hydrocyanic acid Hydrogen chloride (gas only) Hydrogen fluoride Hydrogen
EPA list of extremely hazardous substances
EPA_list_of_extremely_hazardous_substances
Chemical compound
Malatesta et al. in the 1950s by reduction of sodium chloropalladate with hydrazine in the presence of the phosphine. It is commercially available, but can
Tetrakis(triphenylphosphine)palladium(0)
Tetrakis(triphenylphosphine)palladium(0)
Graph showing the free energy vs oxidation state of a chemical species
easily exhibit significant differences: e.g., this diagram does not show hydrazine (NH2-NH2), also a quite unstable compound and the next Frost diagram for
Frost_diagram
Failed NASA orbiter mission to Mars (1992–1993)
a high thrust, monomethyl hydrazine/nitrogen tetroxide bipropellant system for larger maneuvers and a lower thrust hydrazine monopropellant system for
Mars_Observer
NASA spacecraft (2006–present)
(cruise) and three-axis stabilized (science) modes controlled entirely with hydrazine monopropellant. Additional post launch delta-v of over 290 m/s (1,000 km/h;
New_Horizons
Chemical compound with hydrogen and pnictogen atoms
of nitrogen are known, the most important being hydrazine (N2H4) and hydrogen azide (HN3). Hydrazine has physical properties that are similar to those
Pnictogen_hydride
Antibiotic for treatment of tuberculosis
hepatitis from INH. After Friedrich Raschig developed a method to synthesize hydrazine, Hans Meyer and his doctoral student at the German University in Prague
Isoniazid
Family of rocket stages which can be used as a space tug
twenty hydrazine monopropellant thrusters, arranged in two two-thruster pods and four four-thruster pods. Approximately 150 kg (340 lb) of hydrazine is stored
Centaur_(rocket_stage)
Chemical compound
Thiocarbohydrazide is a toxic compound made by the reaction of carbon disulfide with hydrazine (hydrazinolysis). It is used in the silver proteinate specific staining
Thiocarbohydrazide
Chemical reaction of imides with alkyl hydrazines
reaction is the designation for the chemical reaction of imides with alkyl hydrazines to form an isomeric mixture of 1,2,4-triazoles. It was initially described
Einhorn–Brunner_reaction
Highly refined form of kerosene used as rocket fuel
lower, its higher density results in greater energy density. Compared to hydrazine, another liquid fuel that can be stored at ambient temperatures, RP-1
RP-1
Chemical reaction
proposed to be phosphorus-centered, the DEAD having been converted to the hydrazine 7. The ratio and interconversion of intermediates 8–11 depend on the carboxylic
Mitsunobu_reaction
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