▎ 摘　　要

NOVELTY - A graphene oxide aqueous dispersion comprises graphene oxide which is dispersed to water. The light absorbency at wavelength of 230 nm is greater than or equal to 0.6 when a graphene oxide concentration is adjusted to 0.0013 wt.%. The ratio (230 nm/270 nm) of light absorbency at wavelength of 230 nm with respect to the light absorbency at wavelength of 270 nm is greater than or equal to 1.5. USE - A graphene oxide aqueous dispersion. ADVANTAGE - The graphene oxide aqueous dispersion is excellent in applicability. Sedimentation of time-dependent graphene oxide is suppressed. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for manufacturing the graphene oxide aqueous dispersion which involves letting the slurry which is a mixture of water with graphene oxide wet cake with graphene oxide concentration of 40-50 wt.% pass in the aperture diameter of greater than or equal to 0.1 mm, hole shape of less than or equal to 1 mm or width of greater than or equal to 0.1 mm, and slit-shaped gap of less than or equal to 1 mm, where the graphene oxide concentration is 0.1-2 wt.%; or passing a slurry which is mixture of water with graphene oxide wet cake with concentration of 40-50 wt.% through an aperture diameter of greater than or equal to 0.1 mm, hole shape of less than or equal to 1 mm or width of greater than or equal to 0.1 mm, and slit-shaped gap of less than or equal to 1 mm, obtaining the graphene oxide aqueous dispersion having graphene oxide concentration of 0.8-2 wt.%, and letting the graphene oxide aqueous dispersion to pass in aperture diameter of greater than or equal to 0.1 mm, hole shape of less than or equal to 1 mm, width of greater than or equal to 0.1 mm, and slit-shaped gap of less than or equal to 1 mm where the graphene oxide concentration of the dispersion is 0.1-0.6 wt.%.