Clay Fire Assay Crucibles And Magnesite Cupels

     In the bullion fire assay process, a sample from the article is wrapped in a lead foil with copper and silver. The wrapped sample, along with prepared control samples, heated at 1650 F (temperature varies with exact method) in a cupel made of compressed bone ash or magnesium oxide powder.

     Cupellation alone can only remove a limited quantity of impurities from a sample. Fire assay, as applied to ores, concentrates, or less pure metals, adds a fusion or scorification step before cupellation.

Features:

1. Working Temperature 1350 degree(Fire assay working temperature less than 1150 degree);

2. Supply Ability with1200000 Pieces per Month;

3. Long Lasting, can be used 3-5 times.

4. Can withstand extremely corrosive fire assay environments;

5. High mechanical strength designed to withstand sever thermanl shocks.

Notes:

We can do OEM and OBM According to your drawing and requirements.

Chemical Content: AI₂O₃>45%

Fe₂O₃<1%

SiO₂>48%

Packaging and Delivery:

1. Wooden Case

2. Carton Packing

3. Pallet

4. As Per Customer's Requirement

5. Shenzhen/Guangzhou/Shanghai Port

Fire Assay Crucibles

  Our range of Fire Assay Crucibles are designed to give long life and high mechanical strength to withstand severe thermal shocks.