225819

Hydrazine hydrate

reagent grade, N₂H₄ 50-60 %

• Synonym(s): Hydrazinium hydroxide
• Linear Formula: NH₂NH₂ · xH₂O
• CAS Number: 10217-52-4
• Molecular Weight: 32.05 (anhydrous basis)
• EC Number: 206-114-9
• MDL number: MFCD00149931
• UNSPSC Code: 12352300
• PubChem Substance ID: 57647990
• NACRES: NA.21

Properties

• grade: reagent grade
• Quality Level: 200
• vapor density: >1 (vs air)
• vapor pressure: 5 mmHg ( 25 °C)
• form: liquid
• composition: Degree of hydration, ~1.5 ; N₂H₄, 50-60%
• expl. lim.: 99.99 %
• concentration: 50.0-60.0% (%H₄N₂ by Na₂S₂O₃ basis, titration)
• density: 1.029 g/mL at 25 °C (lit.)
• SMILES string: NN.[H]O[H]
• InChI: 1S/H4N2.H2O/c1-2;/h1-2H2;1H2
• InChI key: IKDUDTNKRLTJSI-UHFFFAOYSA-N

Description

General description

The addition of hydrazine hydrate to reduced graphene oxide (RGO) counter electrode improves its performance in dye-sensitized solar cells (DSSC).

Application

Hydrazine hydrate has been used for the deproteination of the enamel samples in a study. It may be used as a reducing agent in the following:

• Preparation of silver nanoparticles.
• Transformation of monosubstituted nitrobenzene derivatives to the corresponding anilines.
• Along with graphite for the conversion of nitro compounds (aromatic and aliphatic) to the amino compounds.

Hydrazine hydrate may be used to prepare:

• 3-(2-Benzyloxy-6-hydroxyphenyl)-5-styrylpyrazoles by reacting with 5-benzyloxy-2-styrylchromones.
• 3,5-Diphenyl-2-pyrazoline derivatives by reacting with 1,3-diphenyl-2-propen-1-one.
• 3′-Aryl-1,2,3,4,4′,5′-hexahydrospiro[quinoxalin-2,5′-pyrazol]-3-ones by reacting with 3-arylacylidene-3,4-dihydroquinoxalin-2(1H)-ones.
• It may also be used in the catalytic reduction of nitroarenes to aromatic amines.

Safety Information

• Pictograms: GHS02,GHS05,GHS06,GHS08,GHS09
• Signal Word: Danger
• Hazard Statements: H226 - H301 + H311 - H314 - H317 - H330 - H350 - H410
• Precautionary Statements: P210 - P273 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 2 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B - Skin Sens. 1
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 3
• Flash Point(F): 204.8 °F - closed cup
• Flash Point(C): 96 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves