P2o3

What is the name of this P2O3? 3

I need to contact the following P2O3 link.

Depressant oxide

Name P2o3

Compound name P2o3

P2o3

I called it Pspre Trioxide, but now it's wrong! The name is IUPAC.
Persepress Oxide (III):
2026 Psprus (III) P2O3 Oxide (CRC Manual 2012)
CAS No: 1314245
2 P2O3 forms powdered dioxide, which is molecularly P4O6. Si3N4 is called silicon nitride and is used as an antioxidant waterproof coating for the right equipment.