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Related Experiment Videos

Hexamethylenetetramine: a review.

J M Dreyfors1, S B Jones, Y Sayed

  • 1Department of Chemistry, University of North Carolina, Wilmington 28403-3297.

American Industrial Hygiene Association Journal
|November 1, 1989
PubMed
Summary

Hexamethylenetetramine (hexamine) has diverse industrial uses but can cause dermatitis and respiratory allergies. While it shows low genetic risk in animal studies, its high-temperature decomposition raises concerns about toxic emissions like HCN and formaldehyde.

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Area of Science:

  • Industrial Chemistry
  • Toxicology
  • Environmental Science

Background:

  • Hexamethylenetetramine (hexamine) is widely used in industries like foundry, rubber, and resins.
  • Exposure to hexamine can lead to dermatitis and respiratory allergies.
  • Hexamine's antibacterial properties stem from its hydrolysis to ammonia and formaldehyde.

Purpose of the Study:

  • To review the toxicology, epidemiology, and thermal decomposition of hexamine.
  • To address regulatory concerns associated with hexamine's industrial applications.
  • To analyze emissions from hexamine's high-temperature decomposition.

Main Methods:

  • Literature review of toxicology and epidemiology studies.
  • Analysis of thermal decomposition data at various temperatures.
  • Evaluation of industrial applications and associated regulatory concerns.

Main Results:

  • Hexamine exhibits low genetic risk in animal studies despite a positive Ames test.
  • Industrial use of hexamine is linked to potential dermatitis and respiratory allergies.
  • Thermal decomposition (300-800°C) increases HCN and decreases NH3 emissions with rising temperature.
  • Decomposition at 200-300°C primarily yields ammonia and formaldehyde.

Conclusions:

  • Hexamine poses low genetic risk but requires careful handling due to potential allergic reactions.
  • Industrial processes using hexamine at high temperatures must manage emissions of HCN, NH3, CO, CO2, nitrogen oxides, and formaldehyde.
  • Understanding hexamine's decomposition pathways is crucial for environmental and occupational safety.

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