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| − | Surfactancy is the word that we use on the wiki to describe a detergent's (or other surfactant's) relative ability to reduce surface tension. Here in bubble-land we are less interested in the surface tension per se than in the physical thickness (not [[viscosity]]) of a soap film at a given concentration |
+ | Surfactancy is the word that we use on the wiki to describe a detergent's (or other surfactant's) relative ability to reduce surface tension. Here in bubble-land we are less interested in the surface tension per se than in the physical thickness (not [[viscosity]]) of a soap film at a given concentration. |
As explained elsewhere on the wiki, the less detergent there is in a solution the THICKER the bubble walls are. A pure water film is thicker than a soap film and (up to a point) the more detergent that is added, the thinner the created film. (See [[Dilution]] and [[Color and Film Thickness]] for more about this topic.) |
As explained elsewhere on the wiki, the less detergent there is in a solution the THICKER the bubble walls are. A pure water film is thicker than a soap film and (up to a point) the more detergent that is added, the thinner the created film. (See [[Dilution]] and [[Color and Film Thickness]] for more about this topic.) |
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For example, a detergent with a high surfactancy might achieve a thin film (and reach the [[Critical Dilution|critical dilution]]) at a water:detergent ratio as high as 25:1 (such as [[Charmy_Dish_Detergent|Charmy, Power of Suds,]] when it is pH adjusted) while the [[User_blog:Espiegel123/2014_09_09_Dawn_Non-Concentrated_Color_Profile|Dawn Simply Clean]] (a weak version of Dawn) has much lower surfactancy and needs much more detergent to achieve a similar film thickness. |
For example, a detergent with a high surfactancy might achieve a thin film (and reach the [[Critical Dilution|critical dilution]]) at a water:detergent ratio as high as 25:1 (such as [[Charmy_Dish_Detergent|Charmy, Power of Suds,]] when it is pH adjusted) while the [[User_blog:Espiegel123/2014_09_09_Dawn_Non-Concentrated_Color_Profile|Dawn Simply Clean]] (a weak version of Dawn) has much lower surfactancy and needs much more detergent to achieve a similar film thickness. |
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