| This is called the oxide, protoxide, or monoxide, and forms the standard to which those both above and below it are preferred. |
| This arises from the peroxidation of the iron, to whose protoxide they owe their tint. |
| Carbon burned in protoxide of nitrogen, or laughing gas, N2O, produces about 38 per cent. |
| The sedative effect of the nitrogen protoxide can be also useful for elderly subjects presenting cognitive disturbances. |
| Red-brownish tint appears because of the formation of protoxide and oxide of copper. |
| The latest addition created by the group, produces, conditions and delivers oxygen, azote protoxide, hydrogen and other gas techniques destined for medical or industrial sectors. |
