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Affixes

sulph(o)-

In the US sulf(o)-

Sulphur.

Latin sulfur, sulphur.

Sulphurous acid forms sulphites, while sulphuric acid forms sulphates. Sulphonic acid is an organic acid containing the group -SO₂OH, which forms sulphonates; the process of conversion of compounds into sulphonates is sulphonation. Sulphides are compounds of sulphur with another component, usually a metallic element. See also thio‑.

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