Performance: The form is white powder and silver sand, the form of crystal is jarless, its purity is high at physics and chemistry, and the purity of na2o is low. It is hard to be dissolved in acid and alkali, the hot stabilization is good, and easy to skive and sinter. Use: It is the substitute and upgrade material of high purity alumna fire-resistant material, fire-resistant pour material, electricity ceramic, the car spark plug. It is also widely used in abrasives and polishing.
