ApplicationsProperties of Graphene Oxide Suspension (Dispersion) Flake size: ≈ 4–6 µm Number of layers: 3–5 Reduction process: Hummers method Color: Brown Odor: Odorless Solubility in water: Soluble Electrical conductivity: ≈ 100 S/m Specific surface area: 100–300 m²/g Purity: > 99% Carbon: 65.7% Oxygen: 34.3%