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Hollow glass microspheres comprising selenium oxide

2022-10-10 14:48:11 309
Hollow glass microspheres are made using selenium oxide as the blowing agent. 

The use of selenium oxide provides two unique advantages: 

Lower density and smaller hollow glass microspheres are obtained because loss of selenium oxide gas out of the liquid glass bubble during formation is slow, and the hollow glass microspheres will contain a vacuum due to the condensation of selenium oxide gas blowing agent upon cooling of the spheres below 315 deg. C.