Polysilicon ingot stripping silicon nitride coating solution
The buyer: Tianjin * * New Energy Co. Ltd. etc.
Recommended products:
A1 Grade（4N）High purity silicon nitride powder.
| JSH A1 Grade（4N）Main indicators of silicon nitride powder | |||
| Project | Unit | Range | Testing standards or methods |
| N | % | ＞ 39.6 | GB/T 16555-2008 / IGA |
| O | % | ＜ 0.8 | ASTMC1494-2001 / IGA |
| C | % | ＜ 0.2 | Leco method / IGA |
| Fe | ppm wt | ＜ 20 | ICP Method / GDMS |
| Al | ppm wt | ＜ 10 | ICP Method / GDMS |
| Ca | ppm wt | ＜ 10 | ICP Method / GDMS |
| P | ppm wt | ＜ 3 | ICP Method / GDMS |
| S | ppm wt | ＜ 3 | ICP Method / GDMS |
| B | ppm wt | ＜ 3 | ICP Method / GDMS |
| Si-free | % | ＜ 0.05 | GB/T 16555-2008 |
| Si3N4(aphar) | % | ＞ 90 | XRD YB/T 5320-2006 |
| D50 | um | 1.5±0.2 | GB/T 19077.1-2008 |