In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 3112-31-0, name is 1H-Pyrazole-3,5-dicarboxylic acid belongs to pyrazoles-derivatives compound, it is a common compound, a new synthetic route is introduced below. SDS of cas: 3112-31-0
To prepare the salt, the 3,5-pyrazoledicarboxylic acid monohydrate (0.8705 g, 0.005 mol) was treated with a 10 percent hydrazine hydrate in a 1:1 molar ratio (2.5 mL, 0.005 mol) in 50 mL of distilled water. The resulting solution was heated over a water bath for about 20 min to obtain a clear solution. This solution (pH = 3.5) was cooled to room temperature and was placed in a vacuum desiccator over calcium chloride for crystallization. Needle-shaped colorless crystals of the title salt are separated after a week, and the crystals were washed with ice-cold absolute alcohol and air-dried. The salt was soluble in cold water, insoluble in alcohol, and was stable in air (yield: 85 percent). Elemental analysis: C (percent): 28.50 (Cald. 29.12); H(percent): 5.10 (5.23); N (percent): 27.93 (27.16); and hydrazine (percent):15.10 (Cald. 15.52).
The synthetic route of 3112-31-0 has been constantly updated, and we look forward to future research findings.
Reference:
Article; Premkumar, Thathan; Srinivasan, Krishnan; Selvakumar, Rajendran; Rath, Nigam P.; Govindarajan, Subbiah; Journal of Thermal Analysis and Calorimetry; vol. 125; 1; (2016);,
Pyrazole – Wikipedia,
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