Timeline for If we add surfactant in soft and hard water, which will require more surfactant and why?
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| Jul 16, 2021 at 8:41 | comment | added | FrankS | Hi Samardeep. No, not in detail. Maybe it relates to solubilities of inorganic carbonates vs. sulfates? | |
| Jul 14, 2021 at 20:30 | comment | added | Samardeep singh | can you expalin the reason why carboxylate of soap have more affinity for cations than the sulfonates of detergents , it is also mentioned in wikepedia but i cant find the reason? | |
| Jul 14, 2020 at 16:18 | comment | added | Maurice | No ! FrankS ! Anionic surfactants are not always reacting with Calcium ions to produce a precipitate in hard water. This reaction happens if the surfactant is the usual and well-known soap, produced by the action of soda on vegetable oils. This soap is made of oleate or other derivates from fatty acids, and it has the disadvantage that it binds with calcium in hard water, and settle as soap-stone in washing machines. But this only happens with soap. With modern anionic detergents, this disadvantage disappears. | |
| Jul 14, 2020 at 7:11 | history | answered | FrankS | CC BY-SA 4.0 |