Maximum quantity allowed is 999
CAS RN: 7803-57-8 | 產品號碼: H0172
Hydrazine Monohydrate
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Appearance | Colorless clear liquid |
Purity( Potassium iodate Method) | 98.0 to 102.0 % |
Solubility in Water | transparency |
Chloride | max. 0.001 % |
Sulfate | max. 0.005 % |
熔點 | -52 °C |
沸點 | 119 °C |
flp | 75 °C |
比重 | 1.03 |
折射率 | 1.43 |
水溶性 | Completely miscible |
溶解性(可與之混溶) | Alcohol |
溶解性(不溶於) | Ether, Chloroform |
圖形表示 |
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信號詞 | Danger |
危險性說明 | H301 : Toxic if swallowed. H314 : Causes severe skin burns and eye damage. H370 : Causes damage to organs. H372 : Causes damage to organs through prolonged or repeated exposure. H317 : May cause an allergic skin reaction. H341 : Suspected of causing genetic defects. H350 : May cause cancer. H410 : Very toxic to aquatic life with long lasting effects. H227 : Combustible liquid. |
防範說明 | P501 : Dispose of contents/ container to an approved waste disposal plant. P273 : Avoid release to the environment. P272 : Contaminated work clothing should not be allowed out of the workplace. P270 : Do not eat, drink or smoke when using this product. P202 : Do not handle until all safety precautions have been read and understood. P260 : Do not breathe mist or vapours. P210 : Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P201 : Obtain special instructions before use. P264 : Wash skin thoroughly after handling. P280 : Wear protective gloves/ protective clothing/ eye protection/ face protection. P370 + P378 : In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish. P391 : Collect spillage. P308 + P311 : IF exposed or concerned: Call a POISON CENTER/doctor. P362 + P364 : Take off contaminated clothing and wash it before reuse. P303 + P361 + P353 : IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water. P333 + P313 : If skin irritation or rash occurs: Get medical advice/ attention. P301 + P330 + P331 : IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P301 + P310 + P330 : IF SWALLOWED: Immediately call a POISON CENTER/doctor. Rinse mouth. P304 + P340 + P310 : IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/doctor. P305 + P351 + P338 + P310 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER/doctor. P403 : Store in a well-ventilated place. P405 : Store locked up. |
RTECS # | MV8050000 |
UN編號 | UN2030 |
類別 | 8 / 6.1 |
包裝類別 | II |
HS編碼* | 2825.10-000 |
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Used Chemicals
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Procedure
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Trifluoroacetic acid (0.355 mL, 4.64 mmol, 11.6 eq.) was added to a solution of 1-Phenylpropargyl alcohol (52.9 mg, 0.40 mmol) and hydrazine monohydrate (500 mg, 10.0 mmol, 25 eq.) in methanol (5 mL) at room temperature. An RVC electrode was immersed in the solution and constant current electrolysis was performed at a current of 40 mA until an electrical flow of 45 F/mol was completed. Water (20 mL) was added to the reaction mixture and the aqueous layer was extracted with diethyl ether (20 mL, twice). The combined organic layer was dried over sodium sulfate and filtered. The solvent was removed under reduced pressure to give 1-phenyl-1-propanol as a colorless liquid (57.2 mg, >99% yield).
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Experimenter’s Comments
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The reaction mixture was monitored by UPLC.
The experiment was conducted in a fume hood because gas is produced during the reaction.
The reaction was carried out for about 8 hours.
IKA ElectraSyn 2.0 was used as an electrolytic apparatus in this experiment.
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Analytical Data
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1-phenyl-1-propanol
1H NMR (400 MHz, CDCl3); δ 7.39–7.26 (m, 5H), 4.59 (t, J = 6.4 Hz, 1H), 2.07 (br s, 1H), 1.88–1.70 (m, 2H), 0.92 (t, J = 7.2 Hz, 3H).
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Lead Reference
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- eHydrogenation: Hydrogen-free Electrochemical Hydrogenation
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Used Chemicals
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Procedure
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Hydrazine monohydrate (275 mg, 5.5 mmol, 1.1 eq.) was added to 1,3-diphenyl-1,3-propanedione (1.12 g, 5.0 mmol) in EtOH (20 mL) at room temperature. The mixture was refluxed for 2 hours.Then water (80 mL) was added to the reaction mixture and precipitate was filtered to give 3,5-diphenyl-1H-pyrazole as a white solid (1.05 g, 95% yield).
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Experimenter’s Comments
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The reaction mixture was monitored by UPLC.
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Analytical Data
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3,5-Diphenyl-1H-pyrazole
1H NMR (400 MHz, DMSO-d6); δ 7.83-7.75 (m, 4H), 7.43-7.38 (m, 4H), 7.34-7.25 (m, 2H), 7.14 (s, 1H).
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Lead Reference
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- A New Model for Dioxygen Binding in Hemocyanin. Synthesis, Characterization, and Molecular Structure of the μ-η2:η2 Peroxo Dinuclear Copper(II) Complexes, [Cu(HB(3,5-R2pz)3)]2(O2) (R = i-Pr and Ph)
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Used Chemicals
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Procedure
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Hydrazine monohydrate (0.267 mL, 5.5 mmol, 1.1 eq.) was added to a solution of 4-phenyl-3-butyn-2-one (0.707 mL, 5.0 mmol) in EtOH (20 mL) at room temperature and the mixture was refluxed for 4 hours. Then the solvent was removed under reduced pressure and the residue was purified by column chromatography (on silica gel, ethyl acetate:hexane = 0:1 - 1:1) to give 5-methyl-3-phenyl-1H-pyrazole as a pale yellow solid (684 mg, 86% yield).
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Experimenter’s Comments
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The reaction mixture was monitored by UPLC.
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Analytical Data
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5-Methyl-3-phenyl-1H-pyrazole
1H NMR (400 MHz, CDCl3); δ 7.71 (d, J = 8.0 Hz, 2H), 7.37 (t, J = 7.2 Hz, 2H), 7.32-7.28 (m, 1H), 6.35 (s, 1H), 2.30 (s, 3H).
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Lead Reference
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- Direct synthesis of pyrazoles from esters using tert-butoxide-assisted C-(C=O) coupling
SDS
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產品規格
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