what is difference beetwin sodium stearate and potassium stearate
Uses of sodium stearate: additive for some inks, paints, cosmetic products - soaps, ointments, etc., pharmaceuticals, foods, rubbers, etc.; also it is a binder or lubricant for powders technology (pressing).
Sodium chloride is soluble in water, calcium stearate not.Put the mixture in water, stir and filter; sodium chloride remain in solution, calcium stearate on the filter.
C17H35COONa
Because 'sdoium stearate' is the conjugate base of the weak carboxylic acid 'stearic acid'. Since a solution of stearic acid would be slightly acidic, a solution of sodium stearate will be basic or alkaline.
bathtub ring
Uses of sodium stearate: additive for some inks, paints, cosmetic products - soaps, ointments, etc., pharmaceuticals, foods, rubbers, etc.; also it is a binder or lubricant for powders technology (pressing).
Sodium chloride is soluble in water, calcium stearate not.Put the mixture in water, stir and filter; sodium chloride remain in solution, calcium stearate on the filter.
soaps
White
2Na+ C18H35O2- (solute) +Mg++ = Mg(C18H35O2)2 (precipitate) + 2Na+
sodium stearate C17H35COONa , sodium palmitae C15H31COONa
C17H35COONa
Because 'sdoium stearate' is the conjugate base of the weak carboxylic acid 'stearic acid'. Since a solution of stearic acid would be slightly acidic, a solution of sodium stearate will be basic or alkaline.
i don't have a clue!
bathtub ring
Calcium stearate is carboxylate of calcium that is found in some lubricants and surfactants. It is a white waxy powder. It is produced by heating stearic acid, a fatty acid, and calcium oxide. It is also formed when sodium stearate is added to hard water (as scum). Sodium stearate + CaSO4 -----> C36H70CaO4 + Na2SO4 OR Sodium stearate + Ca(HCO3)2-------------> C36H70CaO4 + NaHCO3 Anyway, just wanted to refresh your memory a little bit... The formula is, as mentioned earlier : C36H70CaO4 Oh, and sodium stearate's just a fancy word for soap...
It is also known as a surfactant