... vacuum.Melting point: 115-116 ºCBoiling point: 297.9 ºCRelative density: 1.203Flash point: 151ºCHeat of vaporization ... is raw material for organic compound, three nitro fluorene ketone which is used to xerography, fang base ... , analgesics, hypotensor, insecticide, herbicide, impact resistant organic glass, fluorene aldehyde resin, wetting agent, detergent, liquid flash agent, disinfectant, ...