Chemicals for use in industry and science; chemical preparations for use in industry; chemicals used in science; phosphoric acid; calcium phosphate; calcium salts; industrial salts; chemical agents, other than paint, for coating of surfaces to cause water to spread out in a thin film rather than forming water droplets; hydrophilic agents for coating, namely, coating agents for surfaces that cause water to spread out in a thin film rather than forming water droplets; chemical preparations for ...