According to sources, the recovery of the chemical was affected by a special team of paramilitary CRPF alongwith state police from the Gopi Bigha area of the district.
Also, a senior official here said, copper wires, gun powder and a car was recovered in a raid which was conducted on a godown which was suspected to be pilfering the chemicals to Naxals and ultras.
The chemical was packed in 50kg bags, they said.
In an another incident in neighbouring Jharkhand, the Central Reserve Police Force nabbed two Naxals from the Belatanar-Khukra area in Giridih district of the state.