Compare the Difference Between Similar Terms

Difference Between

Home / Science & Nature / Science / Chemistry / Inorganic Chemistry / Difference Between Caro’s Acid and Marshall’s Acid

Difference Between Caro’s Acid and Marshall’s Acid

December 24, 2019 Posted by Madhu

The key difference between Caro’s acid and Marshall’s acid is that Caro’s acid contains one sulfate group, whereas Marshall’s acid contains two sulfate groups.

Caro’s acid and Marshall’s acid are inorganic acid compounds containing sulfate groups. They are named as peroxymonosulfuric acid and peroxydisulfuric acid, respectively. As these names imply, these inorganic compounds contain peroxide groups and sulfate groups together; the sulfate groups in the peroxydisulfuric acid are connected through a peroxide group.

CONTENTS

1. Overview and Key Difference
2. What is Caro’s Acid 
3. What is Marshall’s Acid
4. Side by Side Comparison – Caro’s Acid vs Marshall’s Acid in Tabular Form
5. Summary

What is Caro’s Acid?

Caro’s acid is an inorganic acid containing a sulfate group and a peroxide group. We can name it as peroxymonosulfate acid because it contains one peroxide group and one sulfate group. The chemical formula of this compound is H2SO5. In this compound, the sulfur atom is in the centre and it has a tetrahedral geometry. We can indicate the connectivity of the atoms as HO-O-S(O2)-OH.

Key Difference - Caro's Acid vs Marshall's Acid

Caro’s acid is a strong oxidant and it is highly explosive as well. The scientist Heinrich Caro, 1898 found this acid, so it was named after him. When considering the production of this acid, in a laboratory procedure, we need chlorosulfuric acid and hydrogen peroxide. When produced, it appears as white crystals. The molar mass of the compound is 114 g/mol.

In the aspect of usage, this acid is used in cleaning and disinfection. For example, the treatment of water in swimming pool to get rid of contaminants. Moreover, the ammonium salt of this acid is useful in plastic industry, as polymerization initiators. It is also important as an oxidizing agent.

What is Marshall’s Acid?

Marshall’s acid is an inorganic acid containing two sulfate groups and a peroxide group. The chemical formula of this compound is H2S2O8. It got its name from the chemist Hugh Marshall, who found this compound. We can name this compound as peroxydisulfuric acid because of the presence of two sulfate groups. Moreover, we can write the structural formula of this compound as HO3S-O-O-SO3H.

Difference Between Caro's Acid and Marshall's Acid

We can prepare this compound using the reaction between chlorosulfuric acid hydrogen peroxide. We can also produce it via electrolysis of sulfuric acid (concentrated acid) using platinum electrodes. Here, we need to use a high voltage as well. When considering the uses of Marshall’s acid, it is mainly useful as a powerful oxidizing agent.

What is the Difference Between Caro’s Acid and Marshall’s Acid?

Caro’s acid and Marshall’s acid are important inorganic acids containing sulfate groups. The key difference between Caro’s acid and Marshall’s acid is that Caro’s acid contains one sulfate group, whereas Marshall’s acid contains two sulfate groups. The chemical name of Caro’s acid is peroxysulfuric acid, while the chemical name of Marshall’s acid is peroxydisulfuric acid.

Moreover, both these compounds are important as powerful oxidizing agents. But, in addition to it, Caro’s acid is also useful as a cleaning agent and for disinfection purposes. Besides, we can write the structural formula of Caro’s acid as HO-O-S(O2)-OH, and the structural formula of Marshall’s acid is HO3S-O-O-SO3H.

Below infographic summarizes the differences between Caro’s acid and Marshall’s acid.

Difference Between Caro's Acid and Marshall's Acid in Tabular Form

Summary – Caro’s Acid vs Marshall’s Acid

Caro’s acid and Marshall’s acid are important inorganic acids containing sulfate groups. The key difference between Caro’s acid and Marshall’s acid is that Caro’s acid contains one sulfate group, whereas Marshall’s acid contains two sulfate groups.

Reference:

1. “Peroxymonosulfuric Acid.” Wikipedia, Wikimedia Foundation, 28 Aug. 2019, Available here.
2. “H2S2O8 – Peroxydisulfuric Acid Structure, Molecular Mass, Properties and Uses.” BYJUS, Byjus, 2 May 2019, Available here.

Image Courtesy:

1. “Peroxomonoschwefelsäure” By NEUROtiker – Own work (Public Domain) via Commons Wikimedia
2. “Peroxodischwefelsäure” By NEUROtiker – Own work (Public Domain) via Commons Wikimedia

Related posts:

Difference Between Nuclear Fusion and FissionDifference Between Nuclear Fusion and Fission Difference Between Endothermic and Exothermic ReactionsDifference Between Endothermic and Exothermic Reactions Difference Between Radioactivity and RadiationDifference Between Radioactivity and Radiation Difference Between Photon and ElectronDifference Between Photon and Electron Difference Between Oil in Water and Water in Oil EmulsionDifference Between Oil in Water and Water in Oil Emulsion

Filed Under: Inorganic Chemistry

About the Author: Madhu

Madhu is a graduate in Biological Sciences with BSc (Honours) Degree and currently persuing a Masters Degree in Industrial and Environmental Chemistry. With a mind rooted firmly to basic principals of chemistry and passion for ever evolving field of industrial chemistry, she is keenly interested to be a true companion for those who seek knowledge in the subject of chemistry.

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Request Article

Featured Posts

Difference Between Coronavirus and Cold Symptoms

Difference Between Coronavirus and Cold Symptoms

Difference Between Coronavirus and SARS

Difference Between Coronavirus and SARS

Difference Between Coronavirus and Influenza

Difference Between Coronavirus and Influenza

Difference Between Coronavirus and Covid 19

Difference Between Coronavirus and Covid 19

You May Like

Difference Between Yoga and Pilates

Difference Between Yoga and Pilates

Difference Between Photography and Digital Photography

Difference Between SQL and Microsoft SQL Server

Difference Between Pure and Applied Sociology

Difference Between Pure and Applied Sociology

Difference Between Assessed Value and Market Value

Latest Posts

  • What is the Difference Between Omphalocele and Gastroschisis
  • What is the Difference Between Autonomic and Somatic Reflexes
  • What is the Difference Between Plagiocephaly and Craniosynostosis
  • What is the Difference Between Coconut Oil and Virgin Coconut Oil
  • What is the Difference Between Wintrobe and Westergren Tube
  • What is the Difference Between Coarctation and Hypoplastic Aortic Arch
  • Home
  • Vacancies
  • About
  • Request Article
  • Contact Us

Copyright © 2010-2018 Difference Between. All rights reserved. Terms of Use and Privacy Policy: Legal.