Hard water evaporation residue. A watch glass with evaporation residue left behind after hard water was evaporated. Hard water contains some dissolved and suspended mineral salts, most commonly carbonates and sulfates. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Turtle Rock Scientific |
Bildgröße: | 5156 px × 3427 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |