Uranus and Neptune do not have oceans of liquid water as traditionally understood; instead, they contain a significant amount of water mixed with gases at their cores. The water present is primarily in a frozen state due to the planets' distance from the sun, and any liquid exists under extreme temperatures and pressures in a slurry form. This fluid, often referred to as a water-ammonia ocean, has high electrical conductivity. Both planets are classified as ice giants, with their compositions dominated by ice rather than gases, distinguishing them from gas giants like Jupiter and Saturn. The total mass of ice within Uranus is estimated to be between 9.3 and 13.5 Earth masses, with hydrogen and helium making up only a small fraction.