FeSO4 + Ba(NO3)2 → BaSO4 + Fe(NO3)2
Reactants:
- FeSO4 – Iron(II) sulphate

- Other names: Iron(II) sulfate

, Ferrous sulfate
, Green vitriol
Iron vitriol
, Copperas
, Melanterite
, Szomolnokite
, Ferrous sulfate
, Iron sulfate (1:1)
, Iron(II) sulfate (1:1)
, Ferrous sulfate (anhydrous)
, Ferrous sulfate (anh.)
, Iron(2+) sulfate (anh.)
, FeSO4
, Fe(II)SO4
, Ferrous sulfate anhydrous 
- Appearance: White crystals (anhydrous) | White-yellow crystals (monohydrate) | Blue-green crystals (heptahydrate)

- Ba(NO3)2
- Names: Barium nitrate


, Barium dinitrate 


, Barium salt
Barium nitrate (as Ba)
, Barium salt of nitric acid 
, Nitric acid, barium salt
, Barium(II) nitrate (1:2) 
- Appearance: White, lustrous crystals
; Colourless-to-white crystals or crystalline powder
; White, odorless solid. 
Products:
- BaSO4
- Names: Barium sulfate



, Artificial barite 

, Barite 
Barium salt of sulfuric acid 
, Barytes
, BaSO4
, Barium sulphate
, Blanc fixe
, Barytes (natural) 
- Appearance: White crystalline
; Odourless tasteless white or yellowish crystals or powder
; White or yellowish, odorless powder. 
- Fe(NO3)2