Which type of liqued is using in photograpy?

The liquid light is a solid gel and before use the bottle must be soaked in a container of hot water until it becomes a liquid about 110 deg F. The liquid used in photography is a silver-based sensitizer for applying on any type molecule, revealing by an enlarger, and giving out in conventional chemistry. But in a liquid form and can allow the emulsion to be coated on a wide range of surfaces.