8. 4. I solid surface and specific surface area 3)Danger of suspending powder Powder explosion in Baxian, Xinbei, Taiwan Micropowder explosion: micropowder is thermodynamically unstable http://www.igiyi.com/w19rt68ph15.htmlPowder explosion in Baxian, Xinbei, Taiwan http://www.iqiyi.com/w_19rt68ph15.html 8.4.1 solid surface and specific surface area Micropowder explosion: micropowder is thermodynamically unstable. (3) Danger of suspending powder