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 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Chillmaid, Martyn F. |
Bildgröße: | 3646 px × 4902 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |