The chemical formula of formic acid: HCOOH. This is one of the first representatives of monobasic carbonic to-t. The substance was first isolated in 1670 from a forest (red) ant. In the natural environment it is found in the poison of bees, nettles and needles of conifers, jellyfish secretions, fruits.
The racemic formula of methanoic acid: CH2O2. The substance under normal conditions has the form of a colorless liquid, which is readily soluble in glycerin, acetone, toluene and benzene. Molar mass = 46.02 grams per mole. Ethers (ethyl ether and methyl ether) and salts of methane to - you received the name formates.
Using the structural formula of Formic acid, conclusions can also be drawn about its chemical properties. Formic acid is able to exhibit the properties of K-t and some of the properties of aldehydes (reduction reactions).
In the oxidation of formic acid, for example, potassium permanganate, carbon dioxide is actively released. The substance is used as a preservative agent (code E236) Formic acid interacts with acetic acid (concentrated) and decomposes into carbon monoxide and ordinary water with heat. Chemical compound reacts with sodium hydroxide. The substance does not interact with hydrochloric acid, silver, sodium sulfate and so on.
Preparation of Formic Acid
The substance is formed as a by-product during oxidation. butane and production acetic acid. It can also be obtained by hydrolysis. formamide and methyl formate (with excess water); with hydration of CO in the presence of any alkali. Quality response to detect methanoic acid reaction to algedigi. The role of an oxidizing agent may be ammonia solution of silver oxide and C (OH) 2. The reaction of a silver mirror is used.
The use of formic acid
The substance is used as an antibacterial agent and preservative in the preparation of feed for long-term storage, the agent significantly slows down the decay and decay process. The chemical compound is used in the process of dyeing wool; as an insecticide in beekeeping; during certain chemical reactions (acts as a solvent). In the food industry, the product is labeled E236. In medicine, acid is used in combination with hydrogen peroxide ("first day" or permuric acid) as antisepticfor the treatment of joint diseases.
Local anesthetizing, distracting, anti-inflammatory, locally irritating, improving tissue metabolism.
Pharmacodynamics and pharmacokinetics
Methanic acid, when applied to the surface of the epidermis, irritates the nerve endings of the skin, muscle tissue, activates specific reflex reactions, stimulates the production of neuropeptides and enkephalins. At the same time, pain sensitivity decreases and vascular permeability increases. The substance stimulates the processes of liberalization kininov and histamine, dilates blood vessels, stimulates immunological processes.
Indications for use
The drug is used to treat tools and equipment before surgery. The substance is used topically in solutions for the treatment of rheumatic pains, myositis, sciatica, neuralgia, periarthritis, poly- and monoarthritis.
The tool can not be used if available allergies, dermatitis at the place of application eczemaif there are wounds and abrasions on the skin.
Methanic acid can cause local reactions, itching, redness, skin irritation, peeling of the skin, allergies.
Instructions for use (Method and dosage)
The drug is used topically, in combination with other substances. The drug is applied to the affected area and gently rubbed.
There is no evidence of an overdose of the drug.
The medicine is compatible with other means.
The substance can not be taken orally or applied to the mucous membrane, avoid contact with eyes.
Preparations that contain (Analogs)
Ant alcohol, Formic acid solution.
Subject to the recommendations and the doctor, the method of taking the medicine and dosage, it gives a lasting positive effect with neuralgia, arthritis and other diseases of the musculoskeletal system. No adverse reactions reported.
Price, where to buy
You can buy formic acid in a pharmacy as part of formic alcohol, 15 rubles per 50 ml bottle.