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Factory wholesale Magnesia Cupels fire assay cuples

Prix FOB

Obtenir le dernier prix

0.13 ~ 1.99 / Piece

5000 Piece Minimum Order

Pays:

China

N Â° de modÃ¨le:

Prix FOB:

0.13 ~ 1.99 / Piece (Negotiable) Obtenir le dernier prix

LocalitÃ©:

Prix de commande minimale:

0.13 per Piece

Commande minimale:

5000 Piece

Packaging Detail:

carton box with wooden palletã€‚

Heure de livraison:

stock item will be ship out within 1 weekï&fr

Capacité de Fournir:

50000 Piece per Month

Payment Type:

Groupe de produits :

Cupels

Contacter maintenant

Changsha Jintuo Experimental Equipment

China

Membre gratuit

Personne Ã contacter Ms. Bonnie

Room 608, Sunrising Building, No.68 Bayi Street, Changsha, Hunan Province, China., Changsha, Hunan

Contacter maintenant

SpÃ©cification du produit

refractoriness:850-1100 degree
Size:Can be customize
Name:Fire assay cupels
material:magnesia/bone ash
Application:mineral & metallurgy industry

La description

1. Made of high quality magnesia / bone ash.
2. Used for smelting and assaying.
3. High thermal shock resistance.

During cupellation, the lead is oxidized to litharge (PbO), most of which is absorbed by the cupel. Gold, silver, platinum and other precious metals form a bead in the cupel.
The bead is subsequently treated to determine its precious metal content. Cupels are typically made from magnesia MgO ( sometimes mistakenly referred to as magnesite), bone ash, Portland cement and other materials.
Typical cupellation furnace temperatures in gold and silver assays are *******0°C, but can vary with technique, air flow volume and cupel material.
Cupellation is the last and most important step of the fire assaying process and as such, the quality of the cupels is extremely important.

Pays:	China
N Â° de modÃ¨le:	-
Prix FOB:	0.13 ~ 1.99 / Piece (Negotiable) Obtenir le dernier prix
LocalitÃ©:	-
Prix de commande minimale:	0.13 per Piece
Commande minimale:	5000 Piece
Packaging Detail:	carton box with wooden palletã€‚
Heure de livraison:	stock item will be ship out within 1 weekï&fr
Capacité de Fournir:	50000 Piece per Month
Payment Type:	-
Groupe de produits :	Cupels