Depending on the size of your boat you may need more than one. Boats less than 26' have to have at least one B-1 fire extinguisher on board. Boats 26'-40' need to have at least two B-1 fire extinguishers on board.
Graphite is an electric conductor, consequently, useful in such applications as arc lamp electrodes. It can conduct electricity due to the vast electron delocalization within the carbon layers (a phenomenon called aromaticity).
Graphite. Graphite. Graphite is formed from carbon atoms in layers. Graphite is black, shiny and opaque (not transparent). It's also a very slippery material. It's used in pencil leads â it slips easily off the pencil onto the paper and leaves a black mark. It's a component of many lubricants, for example bicycle chain oil.