Silicon Metal
98.5% to >99.9999% purity Marietta Minerals Processing processes and delivers ultra high purity,
chemical and metallurgical grades of silicon metal. With a multitude
of processing options available, customers can order sizes ranging
from cast by down (i.e., as it arrives bulk) to single-digit micron
powders. Our expertise in various milling and screening processes gives
our customers the option of specifying the purity and the size they
want naming top size and bottom size in inches, fractions of inches,
mesh or microns.
MMP has the ability to provide >99.99% and 99.9999% pure N-type
or P-type silicon for those solar cell applications in various forms
such as wafers, tops and tails, ingots and poly chunk to name a few.
We deliver exactly the product you need in quantities ranging from
hundreds of pounds to truckloads. Our various storage, packaging and
shipping options mean we can deliver what you need, where and when
you need it.
For more information on the services we offer, click here
to visit our page, or contact Clinton Holley by e-mail at or
by telephone at 740-373-5022. |
 High Purity Silicon Metals
> 99.99% pure silicon can be either “N” type or “P” type. |
| |
Min |
Max |
Typical |
Concentration |
| Si |
99.99% |
|
|
ppmwt |
| Fe |
|
|
<0.05ppm |
ppmwt |
| Al |
|
|
<0.01ppm |
ppmwt |
| Ca |
|
|
<0.05ppm |
ppmwt |
| Cu |
|
|
<0.05ppm |
ppmwt |
| Cr |
|
|
<0.05ppm |
ppmwt |
| Ni |
|
|
<0.01ppm |
ppmwt |
| Mn |
|
|
<0.05ppm |
ppmwt |
| O |
|
|
<0.05ppm |
ppmwt |
|
 |
| Chemical Grade Silicon Metals |
| |
Min |
Max |
Typical |
| Si |
>98.0% |
|
>99.0% |
| Fe |
|
0.35% |
|
| Al |
|
|
|
| Ca |
|
0.03% |
0.026% |
|
|
| Metallurgical Grade Silicon Metals |
| |
Min |
Max |
Typical |
| Si |
98.00% |
|
>98.5% |
| Fe |
|
1.00% |
<0.65% |
| Al |
|
0.25% |
0.18% |
| Ca |
|
0.30% |
0.10% |
|
|
| Glossary |
| Bottom Size |
This is the size of the smallest particle in your order, usually measured in inches, fractions of inches, mesh or microns. |
| Cast by Down |
This is the size of the as cast silicon as it arrives in bulk. |
| Mesh Size |
This is a number corresponding to the number of openings in one square inch of screen. Higher mesh numbers equate to smaller holes. |
| Micron |
Also known as a micrometer, one micron is the same as one millionth of a meter or 0.000039 inches. |
| Top Size |
This is the size of the largest particle in your order, usually measured in inches, fractions of inches, mesh or microns. |
|
|
|
