| Element | % | | Halide | % |
|---|
| Br | 10.77 | | TlBr | 42.00 |
| I | 23.62 | | TlI | 58.00 |
| Tl | 65.61 | | | |
|
|
|
| Sum | 100.0 | | Sum | 100.0 |
|
|  | |
|---|
| 200 µ m
| |
|---|
|
This is a reflected light micrograph of a polished, carbon coated synthetic thallium bromide/iodide crystal.
The identifying etched label, which is a feature
of our standards, is invaluable for navigating in an electron beam instrument.
Thallium
is a rare heavy metal which oxidizes badly in the native state;
bromine and iodine are volatile halides, also impossible to mount
in the elemental state. This special synthetic material gives an
excellent standard for all three elements in a robust stable form.
|
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