Vibox

Lot of 6 - Cupels #7A Magnesia/Mabor 1-9/16" for Fire Assay & Gold Refining

Description: Our cupels are made from quality dead burnt magnesia (MgO) and work great for cupelling lead in the fire assay process to determine gold and silver content of ores or other precious metal samples. They can also serve as high-temperature melting dishes for melting metals. Each order contains six individual 7A cupels. Approximate dimensions of individual cupels are: 1-9/16" across the top outer diameter (39.7mm), 1-3/16" across the bottom diameter (30mm), and 1-1/8" in height (28.5mm). #7A cupels weigh approximately 61g each, plus/minus about 1.0g. Magnesia cupels can absorb approximately 70-75% of their weight in lead oxide (PbO) which translates to roughly 42.5g of lead oxide absorption for a 7A cupel or 39.5g of metallic lead. Making them perfect for cupelling lead buttons up to 35g in weight. It is not recommended to attempt to absorb the maximum theoretical absorption potential as this may risk cracking of the cupel and spilling of the molten lead. When used for cupelling lead, each cupel is meant for a single use.

Price: 19.85 CAD

Location: Toronto, Ontario

End Time: 2024-03-10T20:05:35.000Z

Shipping Cost: 7.78 CAD

Product Images

Lot of 6 - Cupels #7A Magnesia/Mabor 1-9/16" for Fire Assay & Gold RefiningLot of 6 - Cupels #7A Magnesia/Mabor 1-9/16" for Fire Assay & Gold RefiningLot of 6 - Cupels #7A Magnesia/Mabor 1-9/16" for Fire Assay & Gold RefiningLot of 6 - Cupels #7A Magnesia/Mabor 1-9/16" for Fire Assay & Gold RefiningLot of 6 - Cupels #7A Magnesia/Mabor 1-9/16" for Fire Assay & Gold RefiningLot of 6 - Cupels #7A Magnesia/Mabor 1-9/16" for Fire Assay & Gold RefiningLot of 6 - Cupels #7A Magnesia/Mabor 1-9/16" for Fire Assay & Gold RefiningLot of 6 - Cupels #7A Magnesia/Mabor 1-9/16" for Fire Assay & Gold RefiningLot of 6 - Cupels #7A Magnesia/Mabor 1-9/16" for Fire Assay & Gold RefiningLot of 6 - Cupels #7A Magnesia/Mabor 1-9/16" for Fire Assay & Gold RefiningLot of 6 - Cupels #7A Magnesia/Mabor 1-9/16" for Fire Assay & Gold RefiningLot of 6 - Cupels #7A Magnesia/Mabor 1-9/16" for Fire Assay & Gold RefiningLot of 6 - Cupels #7A Magnesia/Mabor 1-9/16" for Fire Assay & Gold RefiningLot of 6 - Cupels #7A Magnesia/Mabor 1-9/16" for Fire Assay & Gold RefiningLot of 6 - Cupels #7A Magnesia/Mabor 1-9/16" for Fire Assay & Gold Refining

Item Specifics

Restocking Fee: No

Return shipping will be paid by: Buyer

Returns Accepted: Returns Accepted

Item must be returned within: 14 Days

Recommended

Oyster Shells Lot Of 50, Cleaned 2.5”-4+”, Great for crafts or weddings placards
Oyster Shells Lot Of 50, Cleaned 2.5”-4+”, Great for crafts or weddings placards

$35.00

View Details
Surprise Lot of 15 Random Stickers - Includes Die Cuts/Sticker Flakes!
Surprise Lot of 15 Random Stickers - Includes Die Cuts/Sticker Flakes!

$0.99

View Details
no cow Protein Bar - SEE DESCRIPTION - Lot of 84 - Free Shipping
no cow Protein Bar - SEE DESCRIPTION - Lot of 84 - Free Shipping

$79.99

View Details
WHOLESALE LOT OF 100 ASSORTED KIND BARS    ***MUST SEE DESCRIPTION***
WHOLESALE LOT OF 100 ASSORTED KIND BARS ***MUST SEE DESCRIPTION***

$54.99

View Details
Lot of 10 Genuine Dell 65W AC Adapter small tip 4.5mm) for Inspiron XPS
Lot of 10 Genuine Dell 65W AC Adapter small tip 4.5mm) for Inspiron XPS

$75.00

View Details
Disney Parks Minnie Ears Huge Variety - Lot Of 17
Disney Parks Minnie Ears Huge Variety - Lot Of 17

$25.00

View Details
🔥🔥 LOT Of 100 Different Comics from a Comic Book Shop - Modern Era
🔥🔥 LOT Of 100 Different Comics from a Comic Book Shop - Modern Era

$49.99

View Details
Bulk Lot of 55 Unopened Old Vintage NBA Basketball Cards in Sealed Packs NEW
Bulk Lot of 55 Unopened Old Vintage NBA Basketball Cards in Sealed Packs NEW

$19.99

View Details
BIG Lot of 100 BASEBALL Cards HOF & Rookies Storage Unit/Estate Finds 90s-2000s
BIG Lot of 100 BASEBALL Cards HOF & Rookies Storage Unit/Estate Finds 90s-2000s

$8.75

View Details
LOT OF TWO - Primatene Mist NON PRESCRIPTION Epinephrine Bronchodilator
LOT OF TWO - Primatene Mist NON PRESCRIPTION Epinephrine Bronchodilator

$48.88

View Details