Forensic tests are ongoing to see if the containers held the substance used in the attack, which saw 35-year-old Abdul Ezedi throw acid on the mother and children in Clapham on January 31.
Ezedi, 35, is on the run from police are being suspected of carrying out a targeted attack on the mother and her two daughters, aged three and eight, on Wednesday night in Clapham, south London
Police urged the public to stay away from dangerous former asylum seeker Abdul Shokoor Ezedi, who is accused of leaving the victims with life-changing injuries.