| Identification | More | [Name]
Hydrazine hydrate | [CAS]
7803-57-8 | [Synonyms]
Diamid hydrate
HYDRAZINE HYDRATE
Hydrazine hydrate solution 60 (N2H4.H2O)
HYDRAZINE MONOHYDRATE
HYDRAZINIUM HYDROXIDE
DiamideHydrate
DiamineHydrate
Hydrazinehydrate,50%
hydrazinehydroxide
idrazinaidrata
Diamide monohydrate
HYDRAZINE MONOHYDRATE REAGENT GRADE 9&
HYDRAZINE HYDRATE SOLUTION APPROX. 80 %
HydrazineHydrate80%Gr
HydrazineHydrate80%
Hydrazinemonohydrate,98+%
HYDRAZINE MONOHYDRATE REAGENT
HYDRAZINEHYDRATE,TECHNICAL
HYDRAZINE1-HYDRATE
Hydrazine monohydrate, 99+% | [EINECS(EC#)]
206-114-9 | [Molecular Formula]
H6N2O | [MDL Number]
MFCD00149931 | [Molecular Weight]
50.06 | [MOL File]
7803-57-8.mol |
| Chemical Properties | Back Directory | [Appearance]
colourless fuming liquid | [Melting point ]
−51.7 °C(lit.)
| [Boiling point ]
120.1 °C(lit.)
| [density ]
1.03 g/mL at 20 °C
| [vapor density ]
>1 (vs air)
| [vapor pressure ]
5 mm Hg ( 25 °C)
| [refractive index ]
n20/D 1.428(lit.)
| [Fp ]
204 °F
| [storage temp. ]
0-6°C | [solubility ]
Acetonitrile (Sparingly), DMSO (Sparingly), Methanol (Slightly), Water (Sparingly) | [form ]
fuming liquid | [color ]
fuming liquid | [Specific Gravity]
1.032 | [PH]
10-11 (10g/l, H2O, 20℃) | [Stability:]
Stability Incompatible with a wide variety of materials, including oxidizing agents, heavy metal oxides, dehydrating agents, alkali metals, rust, silver salts. Combustible. Contact with many materials may cause fire or explosive decomposition. May react explosively with a variety of materials, including dehydrating agents, heavy metal ox | [explosive limit]
>3.4-99%(V) | [Water Solubility ]
Soluble in chloroform, DMSO, methanol. Slightly soluble in water. | [Merck ]
14,4771 | [BRN ]
878137 | [Exposure limits]
ACGIH: TWA 0.01 ppm (Skin)
OSHA: TWA 1 ppm(1.3 mg/m3)
NIOSH: IDLH 50 ppm; Ceiling 0.03 ppm(0.04 mg/m3) | [InChIKey]
IKDUDTNKRLTJSI-UHFFFAOYSA-N | [CAS DataBase Reference]
7803-57-8(CAS DataBase Reference) | [EPA Substance Registry System]
7803-57-8(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
T,N | [Risk Statements ]
R45:May cause cancer.
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
R34:Causes burns.
R43:May cause sensitization by skin contact.
R51/53:Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed .
R10:Flammable. | [Safety Statements ]
S53:Avoid exposure-obtain special instruction before use .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet . | [RIDADR ]
UN 3293 6.1/PG 3
| [WGK Germany ]
3
| [RTECS ]
MV8050000
| [F ]
23 | [Autoignition Temperature]
280 °C | [TSCA ]
Yes | [HazardClass ]
8 | [PackingGroup ]
II | [HS Code ]
28251000 | [Toxicity]
LD50 orally in Rabbit: 169 mg/kg |
| Raw materials And Preparation Products | Back Directory | [Raw materials]
Sodium hydroxide-->Hydrogen peroxide-->Urea-->Chlorine-->Potassium permanganate-->Sodium hypochlorite-->Water-->CHLORIC ACID-->Chloramine-T-->Bone glue | [Preparation Products]
5-(2-FURYL)-4H-PYRAZOLE-3-CARBOXYLIC ACID-->2,6-DIAMINO-4-CHLOROPYRIDINE-->3-Bromopropylamine hydrobromide-->Maleic hydrazide-->6-(AMINOMETHYL)-2-PYRIDINE CARBOXYLIC ACID-->4,5-Dichloro-3(2H)-pyridazinone-->BENZYLHYDRAZINE DIHYDROCHLORIDE-->3-(Furan-2-yl)-1H-pyrazole-5-carbohydrazide ,97%-->4-tert-Butylbenzhydrazide-->5-Bromothiophene-2-carbohydrazide-->4-CHLOROPYRIDINE-2,6-DICARBOHYDRAZIDE-->6-Fluoro-4-(trifluoromethyl)quinolin-2-amine ,97%-->6-BOC-HYDRAZINONICOTINIC ACID-->4-CHLORO-6-HYDRAZINO-PYRIMIDIN-5-YLAMINE-->Pyridazine-->4-Hydrazino-6-methylpyrimidin-2-amine-->3,3'-Dichlorobenzidine dihydrochloride-->4,6-DIMETHYL-1H-PYRAZOLO[3,4-B]PYRIDIN-3-AMINE-->4-AMINO-N,N-DIMETHYLBENZYLAMINE-->ETHYL 5-(2-FURYL)-1H-PYRAZOLE-3-CARBOXYLATE-->Methyl 4-amino-3-methylbenzoate-->6-chloro-1H-indazol-3-amine-->(2,2-DIMETHYL-PROPYL)-HYDRAZINE-->2,5-BIS(4-AMINOPHENYL)-1,3,4-OXADIAZOLE-->3-AMINO-2-METHYLTHIENO[2,3-D]PYRIMIDIN-4(3H)-ONE-->1-(2-Methoxyethyl)hydrazine-->(1,2-DIMETHYL-PROPYL)-HYDRAZINE-->9-PHENANTHROL-->2-Chlorobenzhydrazide-->1H-INDAZOL-3-YLAMINE-->3-Hydrazinyl-N-methylpropanamide-->(1,3-DIMETHYL-BUTYL)-HYDRAZINE-->(1,1-DIMETHYL-PROPYL)-HYDRAZINE-->2-Hydrazinyl-N,N-dimethylacetamide-->3-Hydrazinylpropanamide-->2-Hydrazinyl-N-methylacetamide-->1-(3-Methoxypropyl)hydrazine-->2-Hydrazinylacetamide-->3-Hydrazinyl-N,N-dimethylpropanamide |
| Hazard Information | Back Directory | [General Description]
A colorless fuming liquid with a faint ammonia-like odor. Corresponds to a 64% aqueous solution of hydrazine in water. Combustible but may require some effort to ignite. Contact with oxidizing materials may cause spontaneous ignition. Toxic by inhalation and by skin absorption. Corrosive to tissue. Produces toxics oxides of nitrogen during combustion. | [Reactivity Profile]
HYDRAZINE HYDRATE(7803-57-8) is a base and a very powerful reducing agent. Very corrosive. Violent reaction on contact with alkali metals (sodium, potassium), 2,4-dinitrochlorobenzene, tin dichloride, mercury oxide. Vigorous neutralization reaction with acids. Emits toxic fumes of nitrogen oxides when heated to decomposition [Lewis, 3rd ed., 1993, p. 680]. Reacts with tin(II) chloride to give tin(II) dihydrazine chloride, which decomposes explosively when heated [Mellor 7:430(1946-1947)]. Reacts exothermically and violently with 2,4-dinitrochlorobenzene [Wischmeyer (1967)]. | [Air & Water Reactions]
Fumes in air. Water soluble. | [Hazard]
See hydrazine. | [Health Hazard]
TOXIC; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution. | [Fire Hazard]
Combustible material: may burn but does not ignite readily. When heated, vapors may form explosive mixtures with air: indoors, outdoors and sewers explosion hazards. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Runoff may pollute waterways. Substance may be transported in a molten form. | [Chemical Properties]
colourless fuming liquid | [Physical properties]
Colorless fuming liquid; faint odor; refractive index 1.4284; density 1.032g/mL; boils at 119°C; solidifies at -51.7°C; miscible with water and alcohol;insoluble in chloroform, methylene chloride, and ether. | [Definition]
ChEBI: Hydrazine hydrate is a hydrate. It contains a hydrazine. | [Purification Methods]
It is best obtained by heating hydrazine sulphate (200g), NaOH (160g) and H2O (75mL, exothermic) in a copper flask under reflux for 1.5hours then distilled off (using a flame to remove all the hydrazine). The distillate (175mL) is a clear liquid which contains ~40-45% of N2H4. Note that hydrazine attacks glass, rubber and cork, and stainless steel equipment should be used. The percentage of hydrazine is determined by titration with standard acid (methyl orange indicator) or against standard iodine (starch indicator). Hydrazine monohydrate should contain 64% of N2H4. The ~40-45% solution may be concentrated by mixing it (144mL) with xylene (230mL) and distilling it through an efficient fractionating column (e.g. Hempel column, p 10). All the xylene passes over with about 85mL of H2O. On distilling the residue, hydrated hydrazine (50mL) is obtained containing 80-85% of N2H4. This can be diluted with conductivity H2O to 64% N2H4 to give the monohydrate. Hydrazine and its hydrates have VERY IRRITATING and TOXIC vapours and should be used in an efficient fume cupboard. [Schenk in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I pp 469-472 1963.] |
| Questions and Answers (Q&A) | Back Directory | [Uses]
Hydrazine hydrate is used as a reducing agent in synthetic and analytical reactions and as a solvent for many inorganic compounds. It also is used with methanol as a propellant for rocket engines. Another application is catalytic decomposition of hydrogen peroxide.
| [Preparation]
Hydrazine hydrate is prepared by treating hydrazine sulfate, N2H4•H2SO4 with sodium hydroxide. The product is collected by distillation under nitrogen. It also is obtained as a by-product in the Bayer Ketazine process for producing hydrazine in which hydrazine solution is hydrolysed under pressure in a ketazine column.
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