La mid ah:

Calciumsulfit; sulfurous acid, cusbo calcium
Calcium sulfite, Calcium Sulfite Powder, sulfurous acid, milixda calcium (1: 1)

Dhoola-cadaynta Canonical:OS(=O)O.[Ca+2]

Meesha dhalaalaysa:600°C

Muuqashada:adag (qiyaasta)