Thio-

Thio (from Greek theion, sulfur ') is a prefix, which is used in chemical compounds in which oxygen is replaced by sulfur. This is very often possible because sulfur a very similar electron configuration as has oxygen, evident from the fact that he in the periodic table is in the same main group such as oxygen.

Examples

• Sulfuric acid → thiosulphuric, or sulfates → Thiosulfate
• Cyanates, thiocyanates and isocyanates → → isothiocyanates
• Sodium dithionite
• → alcohols, thiols or mercaptans
• Ether thioether →
• Carbonyl thiocarbonyl →
• Aldehyde → thioaldehyde
• Ketone → thioketon
• Amide → thioamide
• Ketenes → thioketenes
• Phosgene → thiophosgene