Formic acid  CAS 64-18-6 is an organic compound with the chemical formula HCOOH, molecular weight 46.03, commonly known as formic acid, and is the simplest carboxylic acid. A colorless and pungent liquid. Formic acid is a weak electrolyte, but its aqueous solution is weakly acidic and highly corrosive, which can stimulate skin blistering. Usually present in the secretions of bees, certain ants, and caterpillars. It is an organic chemical raw material and also used as a disinfectant and preservative.

Chinese name: formic acid

Foreign name: Formal acid

Nickname: formic acid

Chemical formula: HCOOH or CH2O2

Molecular weight: 46.03

CAS login number: 64-18-6

EINECS login number: 200-001-8

Melting point: 8.2 to 8.4 ℃

Boiling point: 100.6 ℃

Density: 1.22 g/cm ³

Appearance: Colorless transparent smoky liquid with a strong pungent odor

Flash point: 69 ℃

Application

Formic acid is one of the basic organic chemical raw materials, widely used in industries such as pesticides, leather, dyes, pharmaceuticals, and rubber. Formic acid can be directly used for fabric processing, tanning, textile printing and dyeing, and storage of green feed. It can also be used as a metal surface treatment agent, rubber additive, and industrial solvent. Used in organic synthesis to synthesize various formate esters, acridine dyes, and formamide series pharmaceutical intermediates. The specific classification is as follows:

1. Pharmaceutical industry: can be used for the processing of caffeine, analgin, aminopyrine, aminophylline, theobromine borneol, vitamin B1, metronidazole, and mebendazole.

2. Pesticide industry: It can be used for the processing of triadimefon, triadimefon, tricyclazole, triazole, triazophos, paclobutrazol, uniconazole, insecticidal ether, and diclofenac.

3. Chemical industry: raw materials for manufacturing various formates, formamide, pentaerythritol, neopentyl glycol, epoxy soybean oil, epoxy soybean oleate octyl ester, terpene chloride, paint remover, and phenolic resin.

4. Leather industry: used as a tanning agent, deliming agent, and neutralizer for leather.

5. Rubber industry: used for the processing of natural rubber coagulants and the manufacturing of rubber antioxidants.

6. CO production in the laboratory.

8. Verify cerium, rhenium, and tungsten. Inspect aromatic primary amine, secondary amine, and methoxy group. Determination of relative molecular weight and solvent methoxy for crystallization. Used as a fixative in microscopic analysis.

9. Formic acid and its aqueous solution can dissolve many metals, metal oxides, hydroxides, and salts, and the resulting formates can be dissolved in water, making them suitable as chemical cleaning agents. Formic acid does not contain chloride ions and can be used for cleaning equipment containing stainless steel materials.

10. It is used to mix apple, papaya, jackfruit, bread, cheese, cheese, cream and other edible essence and essence for whisky and rum. The concentration in the final flavored food is approximately 1-18 mg/kg.

11. Other: It can also manufacture printing and dyeing mordants, dyeing agents, treatment agents, plasticizers for fibers and paper, food preservation, animal feed additives, and reducing agents.

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