Name: "Cookson" Gold & Silver Free Coarse Assay Litharge (25kg)
SKU: 15202-55
Price: 296.44 USD
Availability: InStock
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"Cookson" Gold & Silver Free Coarse Assay Litharge (25kg)

$296.44

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Model: 15202-55

Shipping Weight: 58lbs

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"Cookson" Gold & Silver - Free Coarse Powder, Pueblo Type Assay Litharge (PbO) - Bag

A Reddish coarse powder assay litharge that is C.P. grade (chemically pure). This material is used for fire assaying processes for the quantitative determination of precious metals in an ore. It is the purest form of litharge, particularly low in silver and gold, and is milled to a uniform particle size for enhanced reactivity and consistency of reaction.

SPECIFICATION
Lead Oxide	99.0% Min
Iron	< 3 ppm
Zinc	< 2 ppm
Bismuth	< 3 ppm
Silver	<0.13 ppm
Gold	< 1 ppb
Free Lead	< 1.5%
Insoluble materials	0.3% Max
Physical Properties
Color	Reddish Granules
Form	Coarse Powder
Specific Gravity	9.5 g/cc