NYSE MKT: UAMY

 UNITED STATES ANTIMONY CORPORATION
 
   
 

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PHYSICAL AND CHEMICAL  SPECIFICATIONS OF ANTIMONY OXIDE

 

 

 

VF

TYP

MP

TYP

HT

TYP

LT

TYP

Antimony Oxide

minimum

99.7%

99.7%

99.7%

99.7%

99.7%

99.7%

99.7%

99.7%

Antimony (Sb)

minimum

83.3%

83.3%

83.3%

83.3%

83.3%

83.3%

83.3%

83.3%

Arsenic (As)

maximum

0.2%

0.050%

0.3%

0.050%

0.3%

0.050%

0.3%

0.050%

Lead (Pb)

maximum

0.2%

0.075%

0.2%

0.075%

0.2%

0.075%

0.2%

0.075%

Iron (Fe)

maximum

0.002%

<0.0004%

0.002%

<0.0004%

0.002%

<0.0004%

0.002%

<0.0004%

Selenium (Se)

maximum

50 ppm

<50 ppm

50 ppm

<50 ppm

50 ppm

<50 ppm

50 ppm

<50 ppm

Specific Gravity

 

5.6 to 5.7

5.2 to 5.6

5.6 to 5.7

5.2 to 5.6

5.6 to 5.7

5.2 to 5.6

5.6 to 5.7

5.2 to 5.6

Tint Strength

 

very high

 

high

 

high

 

low

 

  Average Particle Size FSSS (Microns)

 

0.4 to 0.8

0.6 to 0.8

0.8 to 1.1

0.8 to 0.95

1.1 to 1.8

1.2 to 1.6

1.8 to 3.0

2.1 to 2.5

Color

 

Excel. White

 

Excel. White

 

Excel. White

 

Excel. White

 

Residue on 325 mesh  % max./min.

 

0.5%

<0.1%

0.5%

<0.1%

0.5%

<0.1%

0.5%

<0.1%

Weight per cubic ft. approx.

 

45-55#

 

45-55#

 

45-55#

 

45-55#

 

   

 

 

 

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