What is a non-liquid sodium replacement?

Salt substitutes : Potassium chloride is a commonly available salt substitute. Caution is needed for people who have kidney disease or patients who take potassium-sparing medicines such as ACE inhibitors or ARB's. Some sea salts claim to have less sodium than table salt, but the difference must be made up by another mineral and the specific quantities are generally not specified.

Non liquid sodium: Sure. Salt tablets are widely available. Soda bicarb tabs and powder are available.