Fire Assay / Cupellation / Carat Control
Analysis method of precious metal can give exactly purity of input of process. Basicly process called fire assay or cupellation. Main idea of process taking sample quarter grams adding pure silver to increase quantity as one gram than removing all impurities with led covering and melting by high temperature. After than led evoporate with silver and other impurities. Last product gold accepting as pure and checking weight differences to calculate purity of gold or precious metals.
For this operation you will need a labratory set with hood cabin with acid resistance, weighting, furnances, glass equipmets someconsumables and etc.
OUR DIFFERENCES ARE:
– Very Easy to Use
– Plug and Run
– Including Cupellation Furnace, Mettler Balance, Pillar Drill, Separation Cabin and Hood, Laminate Miller and all necessary equipment and consumables.
– Built-In NOx Scrubbing System
– More than 10 years durability thanks to reliable production quality
– Including Installation, Training and Know-How
– Automatic Batch Type Operation
Please see carat table for control;
|
Nu |
Carat |
Fraction |
Purity % |
Fineness |
|
1 |
9 |
9/24 |
37,5 |
375 |
|
2 |
10 |
10/24 |
41,7 |
416/417 |
|
3 |
12 |
12/24 |
50 |
500 |
|
4 |
14 |
14/24 |
58,3 |
583/585 |
|
5 |
18 |
18/24 |
75 |
750 |
|
6 |
22 |
22/24 |
91,67 |
916/917 |
|
7 |
24 |
24/24 |
99,99 |
999 |
