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Acetic Acid 99.7% (India Origin)

Acetic Acid 99.7% (India Origin)
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Country Origin : India Appearence : Clear, Colorless Liquid
CAS No. : 64-19-7 H.S. Code : 2915.21.00
Formula : CH3COOH Common Names : Ethanoic Acid
IUPAC Name : Acetic acid
Packaging : 35 kg @ 576 HMDPE Carbouys, 20.16 MT / 20' FCL
  • Description
  • Application
Brief Overview

 

Acetic acid, also known as ethanoic acid, has a molecular formula CH3COOH.Acetic acid is colorless liquid with a pungent smell. It is a weak monoprotic acid which is able to lose a proton from its acid functional group (-COOH) readily and produce a conjugate base, acetate anion. Acetic acid is also a polar protic solvent as it dissolves readily and is miscible in other polar solvents such as water. However, its polar nature makes it insoluble and immiscible in non-polar solvents such as octane.

 

Using acetic acid as a starting reagent, it readily forms other organic reagents such as acetyl chloride and ethanol through substitution and reduction reactions respectively. Acetic acid can also corrode metals such as iron, magnesium, and zinc, forming hydrogen gas and metal acetates. But since aluminum forms a protective layer of aluminum oxide on its surface, it is acid-resistance and hence aluminum tanks are used as an option to transport acetic acid. Alternatively, high-density polyethylene (HDPE) drums can also be used to transport acetic acids as due to their resistivity.


 

Manufacturing Process


Carbonylation of Methanol

Acetic acid is manufactured via carbonylation of methanol. Metal carbonyl is added to methanol via rhodium-catalyzed Monsanto process or iridium-catalyzed Cativa process. However, with the introduction of iridium-catalyzed Cativa process, Monsanto process became obsolete. Due to the economical and environmental friendliness, Cativa process soon became the main process used to manufacture acetic acid.

 

Acetaldehyde Oxidation

Acetic acid is also manufactured via acetaldehyde oxidation, where oxidizing butane and hydrating ethylene via Wacker process obtain acetaldehyde. This crude acetaldehyde is purified by extractive distillation, followed by fractional distillation. This acetaldehyde will further oxidize to acetic acid.

 

Oxidative Fermentation and Anaerobic Fermentation

Acetic acid can also be manufactured via oxidative fermentation using acetic acid bacteria Acetobacter in alcoholic content, and via anaerobic fermentation using anaerobic bacteria Acetobacterium. The Acetobacter method remains more cost effective to produce acetic acid. Acetic acid produced from this method are mainly used in food.



Textile Industry

Acetic acids are used for textile processing and printing. During the dyeing process, acetic acid plays a vital role in maintaining the accurate and constant pH required for dyeing bath and aids in the absorption of dyes by textile fiber.