Assay Grade Litharge

SEPOR, INC
718 N FRIES AVE.
WILMINGTON, CA 90744
310 830 6601
Fax: 310 830 9336
info@sepor.com

Catalog #: 090G-215

Sepor furnishes assay grade litharge in 25 Kg (55 Lbs.) UN conforming metal pails, in a free flowing granular form, with 95% -25 mesh. Assay grade litharge is primarily used in fire assaying. Fire assaying is the quantitative determination of precious met- als in a ore. Assay Grade litharge is the purest form of litharge, conforming to the specifications below.

It is furnished FOB Wilmington, California, although it is generally not stored at our location in California, but can be shipped there in a couple of days.

 

Litharge, Assay Grade Analysis Results

 

Compound Required Cond.
(Min or Max)
Percent Detected
Lead Monoxide 99% Min 99.59%
SiO2 0.1% Max 0.01%
CaO 0.05% Max 0.02%
Al2O3 0.04% Max 0.01%
Fe 0.025% Max 0.02%
Zn 0.0005% Max 0.0001%
Insoluable Matter 0.3% Max 0.05%
As 0.0005% Max 0.00%
Bismuth 0.0004% Max 0.00%
Metalics 0.5% Max
Silver 0.005 OzT/Ton Max 0.004 Oz/T
Gold 1 PPB Max < 1 PPB
Size 95% pass 20 Mesh 95% – 20 Mesh
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