(A) It is used for making pencil lead, printer’s ink, black paint etc.
(B) It is used as dry lubricant for heavy machinery.
(C) It is used in making crucibles for melting substances.
(D) It is used as an electrode in batteries and electric furnaces.
(E) It is used in nuclear reactors as moderator to regulate nuclear reactions.
(F) It is also used in making artificial diamonds.