Nano silica was prepared from rice husk ash, which has a high silica content. The result showed that there is a real estate XRD base. The surface area. And the size 20 nm. From BET TEM respectively. When burned and 800 C found that calcium carbonate and carbon phase out free lime.Later, increase the temperature 1000 C found what the fane B-dicalcium silicate
.
การแปล กรุณารอสักครู่..