Cyanide Management in Mining - 2: Analysis of Cyanides

5 modules


Course Length
8 hours

Edumine Courses

31 Oct 2019



The cyanidation process for the extraction of gold and silver from ore has been employed since 1898 when it was first used in New Zealand and Africa and soon after in the United States. It is a very efficient process capable of extracting gold in amounts of less than one percent of an ounce from a ton of rock with over 90% efficiency.

Because of the environmental risks, a cyanide management plan is of critical importance to a mining operation. The lack of such a plan, in some cases, has contributed to adverse environmental incidents involving cyanide. The United Nations Environment Programme (UNEP) is developing an international code for the management of cyanide. Implementation and adherence to this code, augmented by experienced scientific and engineering judgment, will help reduce both the number and severity of environmental incidents involving cyanide.

The "Cyanide Management in Mining" courses attempt to provide the user with the necessary background for development of a cyanide management plan that meets the unique requirements of each operating mine. The full complement of courses in the series includes:

  • Chemistry of Free and Complexed Cyanide

  • Analysis of Cyanides

  • Geochemical Properties and Environmental Fate of Cyanide

  • Toxicity and Environmental Properties of Cyanide

  • Water Management and Discharge Strategies

  • Treatment Technologies for Cyanide and Related Compounds

"Analysis of Cyanides" is the second in the series of six courses. This course covers the methods available for measurement and analysis of different categories of cyanide, and discusses the advantages, disadvantages and problems associated with them. It also covers sources of analytical interference in cyanide analysis, variability and accuracy, and measurement of low levels of cyanide in the environment.

This course comprises 10 viewing sessions, each of 30 - 60 minutes duration, plus supporting figures, tables and references, and two interactive reviews that confirm achievement of the learning objectives


  • Dr. Terry Mudder

Duration 8 Hours
Access 90 Days
Category Environment
Level Specialize
Published July 10, 2006
Updated July 23, 2021

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Learning Outcomes

  • Discuss the analytical methods available for measurement of total cyanide, WAD cyanide and free cyanide.

  • Discuss the sources of interference prevalent in cyanide analyses.

  • Discuss the problems associated with variability, accuracy and measurement of low levels of cyanide in the environment.

  • Apply the knowledge gained to development of a cyanide management plan.

Recommended Background

  • A degree or diploma in environmental engineering or mineral processing.

  • Experience of gold or silver extraction with cyanide.


By completing/passing this course, you will attain the certificate Edumine Certification

Learning Credits

Table of contents
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Module 1: Analytical Procedures for Cyanides
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Knowledge Check - Module 1: Analytical Procedures for Cyanides
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Module 2: Analytical Interference, Variability and Measurement
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Knowledge 2: Analytical Interference, Variability and Measurements
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