- Description:
1. A lustrous black solid in silver gray or dark grey that looks like a metal
2. Hard and heat-resistance

- Application:
1. Used by the chemical industry in the production of silicone compounds.
2. Used by aluminum manufacturers to improve the useful properties of aluminum.
3. Manufacture of silicon wafers used in photovoltaic solar cells and electronic semiconductors.

- Specification:
441#: Si: 99%min;
Fe: 0.40%max;
Al: 0.40%max;
Ca: 0.10%max;

553#: Si: 98.5%min;
Fe: 0.50%max;
Al: 0.50%max;
Ca: 0.30%max;

2202#: Si: 99%min;
Fe: 0.20%max;
Al: 0.20%max;
Ca: 0.02%max;

3303#: Si: 99%min;
Fe: 0.30%max;
Al: 0.30%max;
Ca: 0.03%max;

- Size:
1. 10-50mm
2. 50-100mm
3. 10-100mm
4. 90%min
At customer's option;

- Packing:
1 MT in a big bag