An iodized mounting medium for coal particles

✍ Scribed by Gomez, C. O. ;Strickler, D. W. ;Austin, L. G.

• Book ID: 102888040
• Publisher: Wiley (John Wiley & Sons)
• Year: 1984
• Tongue: English
• Weight: 651 KB
• Volume: 1
• Category: Article
• ISSN: 0741-0581
• DOI: 10.1002/jemt.1060010307

✦ Synopsis

A high electron-density embedding medium was developed for SEM observation of inorganic constituents of organic or carbonaceous particles. The components used are a common epoxy resin in which iodoform is dissolved before the addition of the hardener. An iodoform content of 10% by weight proved satisfadory for obtaining excellent contrast between the matrix and embedded carbonaceous particles in the SEM. The system has been successfully applied in the preparation of polished specimens of coal particles. There is no interference between the iodine and any of the most abundant or most important coal mineral components, but it was found that the epoxy resin contained chlorine as a contaminant.