It has wide applications range through advanced materials, laboratory, dental, thermal process technology and foundry to glass and arts & craft.
WHAT IS ASHING?
Ashing in analytical chemistry is defined as the heating of a substance to leave only non-combustible ash, which is analyzed for its elemental composition.
ASHING TECHNIQUES
Dry Ashing
Dry ashing temperature 450°C to 550°C is usually performed by placing the sample in an open inert vessel and destroying the combustible (organic) portion of the sample by thermal decomposition using a muffle furnace.
Sulfated Ashing
Sulfated ashing involves treatment of sample after charring using an open flame with sulfuric acid and then placing in a muffle furnace.
Low-Temp Ashing
Low-temperature ashing involves treatment of the sample at ~120°C using activated oxygen.
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