The incident happened at a petrol station in Nes on Romerike on Tuesday night, writes Romerikes Blad.
The man got the liquid in his eyes and swallowed, and was taken to hospital.
– It is a serious case, says operations manager Finn Håvard Aas in the Eastern police district.
It is unclear why the woman threw the salmiak, or whether the offended man worked at the gas station or was a customer.
– .
