Overview Reviews Product Description Silicon Nitride NanopowderSi3N4, 99% Pure, APS: 20 nm Product Videos Custom Field CAS Number 12033-89-5 Formula Si3N4 Dangerous Goods N/A Product Reviews Write a Review Write a Review × MKNano Si3N4, 20 nm Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *