Detergents Essay

608 words - 2 pages

Analysis of chosen Detergents Is foam necessary in the process of stain removal? Foam does not really have a scientific purpose in stain removal. Rather, it is just a safety net for consumers. Consumer's think that the more foam in a detergent the greater the ability it has to remove stains. The experiment "Foam height" looks at the amount of foam produced from three leading brands of washing detergents. "Cold Water Surf", "Bilo" labelled washing powder and "Spree concentrate".After conducting the experiment "Foam Height" it was found that "Cold water surf" produced the largest amount of foam. It was followed by "Spree Concentrate" and "Bilo" labeled detergent. If consumers wanted to purchase a detergent based on its foaming ability the recommended detergent would be "Cold Water Surf".Refer to data table1. Testing Foam Height Why do we use detergents? Water, by itself is not very effective in wetting surfaces. This is because water molecules prefer to cohere to each other rather than to the surface that is to be cleaned. Detergents contain active ingredients called surfactants. Surfactants are responsible for reducing the surface tension of water, allowing it to wet a surface more effectively.The experiment "The Wetting Ability of water" was conducted to observe which of the selected detergents is the most effective in reducing surface tension.The fabric, when added to water took the longest time to sink because of the lack of surfactants. When combined with "Cold Power Surf" the fabric took the least amount of time to sink. The "Bilo" Label took the second longest time to submerge. This is because of a lack of surfactants in the detergent.It can be seen from this experiment that the more surfactants in a detergent the better ability it has to break the surface tension of the water,...

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