Graphite Crucible A8 – inmediate supply
November 1, 2024Quartz Parting & annealing baskets for 16 samples – QBL-16 – For Bulllion Analysis
January 20, 2025Quartz Parting & annealing baskets for 25 samples – QBL-25 – For Bulllion Analysis
Quartz parting & annealing baskets of 25 samples, that allow to carry out the successive parting and gold annealing operations in the same container, and subsitute, both parting flasks, and gold annealing crucibles. This basket is for bullion analysis that requires 500mg samples. This basket is fitter with larger R3 thimbles Ø sup 15 x Ø 12 x H 22 mm:
These quartz parting & annealing baskets for 25 samples are capable of withstanding:
- Attack of concentrated nitric acid
- High temperature necessary for annealing (up to 1000ºC)
- Thermal shock due to very low coefficient of thermal expansion.
They are therefore suitable for simultaneously processing the two nitric acid attacks (the first with nitric acid 33%, the second with nitric acid 49%) and then go directly in the gold annealing furnace (after rincing with water).
The quartz thimbles are provided with thin slits to evacuate the nitric acid / distilled water and possess a flange at the top to fit the holes of the basket.
The following parting & annealing baskets configurations are available:
Basket Reference | Dimensions (L x W x H) (mm) | Capacity (samples) | Picture | Adapted Beaker |
---|---|---|---|---|
QBR-9 | 57x57x70 | 9 (3 x 3) | BBW-9 | |
QBR-16 | 72x72x70 | 16 (4 x 4) | BBW-16 | |
QBR-25 | 87x87x70 | 25 (5 x 5) | BBW-25 | |
QBR-36 | 102x102x70 | 36 (6 x 6) | BBW-36 | |
QBR-49 | 117x117x70 | 49 (7 x 7) | BBW-49 | |
QBL-16 | 92 x 92 x 70 | 16 (4 x 4) | BBW-25 | |
QBL-25 | 112x112x70 | 25 (5 x 5) | BBW-49 |
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