Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
| No | wt% of CTAB | Mean particle size before calcination (nm) | Mean particle size after calcination (nm) |
|---|---|---|---|
| 1 | 0 | — | 40 |
| 2 | 1.5 | 129 | 18 |
| 3 | 5 | 138 | 14 |
| 4 | 20 | 150 | 17 |
| 5 | 30 | 152 | 21 |
