Formic acid (HCOOH) is an organic acid, which is stronger than carbonic acid and weaker than hydrochloric acid, with pungent smell and strong corrosivity. Formic acid is secreted when ants and mosquitoes bite, so formic acid is also known as formic acid. The following are common formic acid problems, hoping to popularize relevant knowledge of formic acid for everyone:
1. People will itch after being bitten by mosquitoes, which can be eliminated by smearing soapy water in the following substances.
2. In addition to eating wood, the ant acid secreted by white ants can also corrode many building materials, such as copper railings, steel bars, marble, etc.
3. Using concentrated sulfuric acid as catalyst, formic acid decomposes into a common toxic gas and another oxide under heating conditions
The traditional production methods include sodium formate method, formamide method, butane (or light oil) liquid phase oxidation method and methyl formate hydrolysis method.
Introduction of new process for preparation of formic acid
In terms of the development of new technology routes, the main research and development routes are as follows: preparation technology of formic acid precursor methyl formate, one-step direct oxidation and catalysis of formaldehyde to formic acid, direct hydrogenation of CO2 to formic acid, and direct synthesis of formic acid from syngas. Among them, carbonylation of methanol to methyl formate and catalytic dehydrogenation of methanol to methyl formate have been widely studied at home and abroad in recent years, and many of them have been industrialized.
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