The specimen is placed in a suitable vessel, evaporating dish or crucible and ignited.
2.
Shallow glass evaporating dishes are commonly termed " watch glasses ", since they resemble the front window of a pocket watch.
3.
In the determination of silicon content in an organic sample, a small and accurately-measured quantity of a substance is added to the large amount of sulfuric acid, then heated in an evaporating dish.
4.
Unlike wire gauze, which primarily supports glassware such as flasks, or evaporating dishes and provides indirect heat transfer to the glassware, the pipeclay triangle normally supports a crucible and allows the flame to heat the crucible directly.
मोबाइल