“Cookson” Gold Free Coarse Assay Litharge (25kg)

$234.27

SKU: 15203-55 Category:

Description

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"Cookson" Gold  Free Gramu;ar Litharge (PbO) – Bag
A Reddish-brown coarse granular assay litharge that is C.P. grade (chemically pure). This material is used for fire assaying processes for the quantitative determination of gold and other precious metals in an ore. Very low in gold, and is milled to a uniform particle size for enhanced reactivity and consistency of reaction.
SPECIFICATION
Arsenic < 2 ppm
Iron < 3 ppm
Zinc < 2 ppm
Bismuth < 3 ppm
Silver < 2 ppm
Gold < 2  ppb
Free Lead < 0.2%
Tin < 2 ppm
Physical Properties
Color Reddish-Brown Granules
Form Coarse Powder
Specific Gravity 9.5 g/cc

 

Additional information

Weight 58 lbs
Dimensions 11 × 13 × 5 cm

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