Title: Sodium Stearate
CAS Registry Number: 822-16-2
CAS Name: Stearic acid sodium salt
Literature References: Approx C18H35NaO2. Usually contains sodium palmitate.
Properties: White powder; soapy feel; slight, tallow-like odor. Slowly soluble in cold water or cold alcohol; freely sol in the hot solvents. The aq soln is strongly alkaline, due to hydrolysis; the alcohol soln is practically neutral.
Use: Pharmaceutic aid (emulsifying and stiffening agent). In glycerol suppositories; also in toothpaste; as waterproofing agent.