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Related Concept Videos

Oxidations of Aldehydes and Ketones to Carboxylic Acids01:15

Oxidations of Aldehydes and Ketones to Carboxylic Acids

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Oxidation of aldehydes and ketones results in the formation of carboxylic acids. Aldehydes, bearing hydrogen next to the carbonyl group, are easily oxidized compared to ketones. This is because an aldehydic proton can easily be abstracted during oxidation.
Aldehydes readily undergo oxidation in strong oxidizing agents such as potassium permanganate and chromic acid. The oxidation can also be carried out using mild oxidizing agents such as silver oxide. In fact, aldehydes can be easily oxidized...
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Updated: Apr 16, 2026

Effects of Exposure of Formaldehyde to a Rat Model of Atopic Dermatitis Induced by Neonatal Capsaicin Treatment
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The formaldehyde dilemma.

Tunga Salthammer1

  • 1Fraunhofer WKI, Department of Material Analysis and Indoor Chemistry, Bienroder Weg 54 E, 38108 Braunschweig, Germany.

International Journal of Hygiene and Environmental Health
|March 17, 2015
PubMed
Summary
This summary is machine-generated.

Formaldehyde is classified as a human carcinogen, leading to regulations on emissions. However, current regulations struggle to address both primary and secondary sources effectively, creating a dilemma for authorities.

Keywords:
Building productsFormaldehydeGuideline valuesIndoor/outdoorLegislationSecondary sources

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Area of Science:

  • Environmental Science
  • Toxicology
  • Regulatory Affairs

Background:

  • Formaldehyde classified as a human carcinogen by IARC (2004) and EU (2014).
  • Classification triggers emission minimization and health assessments for products.
  • Conflicting regulations authorize formaldehyde-releasing technologies while aiming for reduction.

Purpose of the Study:

  • To analyze the regulatory dilemma surrounding formaldehyde emissions.
  • To highlight the discrepancy between regulating primary sources and addressing secondary sources.
  • To evaluate the effectiveness of current formaldehyde regulations.

Main Methods:

  • Review of IARC and EU classifications.
  • Analysis of regulatory frameworks for formaldehyde.
  • Examination of primary and secondary formaldehyde sources in indoor and outdoor environments.

Main Results:

  • Legislation faces challenges due to over-regulation of primary sources.
  • Lack of consideration for secondary formaldehyde sources undermines regulatory efforts.
  • Technologies releasing formaldehyde are authorized despite carcinogen classification.

Conclusions:

  • Current formaldehyde regulations are insufficient due to a failure to address secondary sources.
  • A comprehensive approach is needed to manage formaldehyde exposure effectively.
  • Re-evaluation of regulatory strategies is necessary to balance emission control and product authorization.