Arthur Collins, 25, sprayed the corrosive substance at Mangle nightclub in Hackney, London, on April 17 this year.
Video from inside the club shows Collins grabbing a bottle containing the acid from the back pocket of an unidentified man and then “forcefully” throwing it at the face of one of the men he was arguing with.
The man falls to the floor in pain as Collins squirts the contents of the bottle twice more, splashing people on the dancefloor.
Victims told police they saw “steam” rise above them and described an “all pervasive chemical smell” which made them choke.
The CCTV was released today as Collins was found guilty of five counts of wounding with intent to do grievous bodily harm and nine counts of assault occasioning actual bodily harm.
Further CCTV footage shows Collins laughing and joking an hour after he had hurled the corrosive substance – as strong as hydrochloric acid – at the victims, who by then had gone to hospital for treatment.
Police said a substance found at the scene was tested and identified as a concentrated PH1 acid solution.
Collins who was also injured stayed inside the club while clubbers who had fled desperately sought help at various hospitals.
At Wood Green Crown Court, Collins had admitted throwing a bottle of fluid over clubbers but said he did not know it was acid.
He said he thought the liquid was a date rape drug, which he had snatched from two men after overhearing them planning to spike a girl’s drink.
There were tears in the public gallery, which was packed with Collins’ friends and family, as the jury’s verdicts were read out. Mirror