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| Quality Standard of Silicon Metal GB2881-91 | ||||||
| Application
|
Name
|
Brand No.
|
Chemical Ingredients |
|||
| Si≥(%) | Impurities≤(%) | |||||
| Fe | Al | Ca | ||||
| Chemical-used Silicon | A-grade | Si-A |
99.3 |
0.4 | 0.2 |
0.1 |
| B-grade | Si-B | 99 | 0.5 | 0.3 | 0.2 | |
| Metallurgy-used Silicon | First-grade | Si-1 | 98.5 | 0.6 | -- |
0.3 |
| Second-grade | Si-2 | 98 | 0.7 | -- | 0.5 | |
| Third-grade | Si-3 | 97 | 1 | -- | 1 | |
| Internal Controlled Standard | ||||||
| Brand No. |
Chemical Ingredients | |||||
| Si≥(%) | Impurities≤(%) | |||||
| Fe | Al | Ca | ||||
| Si-2202 | 99.6 | 0.2 |
0.2 | 0.02 | ||
| Si-2205 |
99.5 | 0.2 |
0.2 | 0.05 | ||
| Si-221 |
99.5 | 0.2 |
0.2 | 0.10 | ||
| Si-3205 | 99.4 | 0.3 | 0.2 | 0.05 | ||
| Si-3303 |
99.4 | 0.3 | 0.3 | 0.03 | ||
| Si-321 |
99.4 |
0.3 | 0.2 | 0.1 | ||
| Si-421 |
99.3 |
0.4 | 0.2 | 0.1 | ||
| Si-441 |
99.1 | 0.4 | 0.4 | 0.1 | ||
| Si-532 |
99 | 0.5 | 0.3 | 0.2 | ||
| Si-553 |
98.5 | 0.5 | 0.5 | 0.3 | ||
| Note:
1.The metallurgy-used silicon are mainly used to produce aluminum-silicon
alloy; the chemical-used silicon are used in organosilicon and semiconductor
production field, to produce monomer of organosilicon and polymers
such as silicon oil, silicon rubber, silicon resin, corrosive inhibitor
and waterproofing agent for building, etc. |
||||||
2.The
aluminum impurity showed by "--" in the above form indicates
that this item is not limited by single item, but the analytic result
should be analyzed and reported in the quality certificate. |
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3.Packing:
1000kg/plastic bag; the particle size is on the clients' requirements.
|
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| Byproduct | ||||||
| Name | Si, % | Particle Size | ||||
| Silicon Superfine Powder | 90-96 | 0.2-0.5um | ||||
