"Sulphocarbonic" Natural Recordings by Native Speakers
Sulphocarbonic refers to a compound containing both sulphur and carbon.
It can also be used to describe the acid H2SO3, also known as sulfurous acid, which is a weak dibasic acid that is formed when sulfur dioxide reacts with water.
Sulphinic refers to a class of organic compounds that contain the group -SOOH, which is a sulfonic acid group attached to a carbon atom.
Sulphion is a rare or obsolete spelling of "sulfite" or "sulfite ion, a compound that contains the sulfite ion (SO32-).