Wash-basin. Soap scum (white residue) formed around a wash-basin. Also seen is a bar of soap at upper left. Scum precipitates when soap reacts with th

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Wash-basin. Soap scum (white residue) formed around a wash-basin. Also seen is a bar of soap at upper left. Scum precipitates when soap reacts with the calcium salts present in hard water.

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Size: 3646px × 4902px
Photo credit: © MARTYN F. CHILLMAID/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: basin, bathroom, causing, domestic, goods, hard, household, items, precipitate, scum, soap, tap, wash, wash-basin, washbbasin, water