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Chloroacetic acid Formula : Structure and Properties

The Chloroacetic Acid Formula is C2H3ClO2. This formula represents the molecular composition of Chloroacetic Acid, which consists of two carbon (C) atoms, three hydrogen (H) atoms, one chlorine (Cl) atom, and two oxygen (O) atoms.
authorImageSawat Sayyed27 Sept, 2023
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Chloroacetic acid Formula

We will discuss in this article the chloroacetic acid formula, also known as monochloroacetic acid formula or chloroethanoic acid formula. Chloroacetic acid is an organochlorine compound that is an effective building block. It is known as 2-chloroacetic acid, 2-chloroethanoic acid, and is a molecular or chemical formula of C2H3ClO2.

A colourless to light-brown crystal in its solid form sinks and dissolves in water. In its aqueous form, it appears as a colourless solution. It is widely used as an herbicide, bacteriostat, and preservative.

What is Chloroacetic Acid?

An inorganic acid called chloroacetic acid is widely used in gold refining. Additionally, it is a chlorocarboxylic acid which is then an acetic acid with a 2-chloro substituent. It is also a conjugate acid of chloroacetate, a light brown, crystalline substance that sinks in water and is also soluble in it. Since it is transported as a molten solid, it can cause thermal burns. Chloroacetic acid Moreover, chloroacetic acid is a colorless solution of crystalline solids that are white in color. Furthermore, the concentration of this acid can be up to 80%. In addition to being toxic, chloroacetic acid is also corrosive to metals and tissues. One can use it as a preservative and a bacteriostat, also known as monochloroacetic acid in the industrial sector.

Also Read : Malic Acid Formula

Derivation of Chloroacetic Acid Formula

A chloroacetic acid's formula is C2H3O2Cl. Monocloroacetic acid can be prepared industrially in two months. Additionally, acetic anhydride is used as a catalyst to chlorinate acetic acid. CH3CO2H+Cl2→ClCH2CO2H+HCl Chloroacetic acid can also be obtained by hydrolyzing trichloroethylene with a catalyst, such as sulfuric acid. CCl2=CHCl+2H2O→ClCH2CO2H+2HCl

Also Check - Calcium Bromide Formula

Properties of Chloroacetic Acid

A solid chloroacetic acid is a light-brown, crystalline substance that is colorless and soluble in water. Acetic acid is also explosive by nature, corrosive to metals, and hygroscopic. In addition, chloroacetic acid has a pungent odor that resembles strong vinegar. The crystals of chloroacetic acid are hygroscopic. At 189.3 °C, chloroacetic acid reaches its boiling point, while it melts at 63.0 °C. Additionally, the flashpoint of this acid is 126 °C. Its solubility surpasses 100 mg/mL at 68° F and it can dissolve in diethyl ether, methanol, acetone, ethanol, benzene, and chloroform. However, carbon tetrachloride, chlorinated hydrocarbons, and hydrocarbons only slightly dissolve this acid.

Also Check - Caffeine Chemical Formula

The chloroacetic acid (solid) density is 1.58 at 20 °C/20 °C. The vapor density of this acid is 6.5X10-2 mm Hg (8.68X10-3 kPa) at 25 °C. A fire can cause hazardous decomposition products to form. Hydrogen chloride gas and carbon oxides can be produced during this decomposition.
Chemical formula C2H3ClO2
Molecular weight 94.49 g/mol
Density 1.58 g/cm3
Melting point 63 °C
Boiling point 189.3 °C

Uses of Chloroacetic Acid

The thickeners carboxymethyl cellulose and carboxymethyl starch are prepared with chloroacetic acid in its largest-scale application. There are many reactions that take advantage of the high reactivity of the C–Cl bond, which is why chloroacetic acid is so widely used in the manufacture of pesticides, drugs, and dyes. In addition to glyphosate, chloroacetic acid is the precursor to MCPA (2-methyl-4-chlorophenoxyacetic acid). In addition, dimethoate is prepared through alkylation with chloroacetic acid, which is converted to chloroacetyl chloride. Furthermore, chloroacetyl chloride is a precursor to adrenaline (epinephrine). In addition to being used as a stabilizer in PVC, thioglycolic acid is also used as a component in cosmetics. Displacement of chloride by sulfur leads to the formation of thioglycolic acid. Benzofuran is produced by O-alkylation of salicylaldehyde with chloroacetic acid, followed by decarboxylation of the ether formed.

Health Hazards

When 2-chloroacetic acid comes into contact with the skin or eyes, it causes irritation and burning sensation, and when inhaled it severely damages mucous membranes. This material is very toxic. The lethal dose is 50-500 mg/kg of body weight. Swallowing can lead to peritonitis, as well as depression of the central nervous system and respiratory system.

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What is Chloroacetic Acid (CAA)?

Chloroacetic Acid (CAA) is a chemical compound with the formula CH2ClCOOH. It is a strong organic acid and a colorless, pungent-smelling liquid that is widely used in the chemical industry for various applications.

What are the common uses of Chloroacetic Acid?

Chloroacetic Acid is used in the production of various chemicals, including herbicides, dyes, and pharmaceuticals. It is also employed as a reagent in organic synthesis and as a pH regulator in industrial processes.

Is Chloroacetic Acid hazardous to health and the environment?

Yes, Chloroacetic Acid is corrosive and can cause severe skin, eye, and respiratory irritation. It is also toxic to aquatic life and poses environmental risks, so its handling and disposal must adhere to strict safety and environmental guidelines.

How can one safely handle Chloroacetic Acid?

Safe handling of Chloroacetic Acid requires the use of appropriate personal protective equipment, such as gloves and eye protection. It should be handled in a well-ventilated area, and spills should be promptly and safely cleaned up.

Can Chloroacetic Acid be neutralized or diluted for disposal?

Yes, Chloroacetic Acid can be neutralized with a suitable base, like sodium hydroxide, to form a less hazardous compound. However, this neutralization process must be carried out with caution and in accordance with local regulations before disposal.
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