Purifying manganese dioxide from a 9-volt battery

Purifying manganese dioxide from a 9-volt battery

The manganese dioxide, also known as manganese (IV) oxide, comes from a 9-volt Eveready battery. I purified it using a funnel and filter paper. The residue is pure manganese dioxide .

test Introduction to Chemistry

Introduction to ChemistryIntroduction to Chemistry

Self healing hydrogels and its industrial applications

Hydrogels are water-swollen, cross-linked polymeric structures produced by reactions of monomers or by hydrogen bonding. This hydrogels used in various applications .