Liver salts with universal indicator added. Universal indicator changes colour depending on whether it has been added to an acid or an alkali. In acidic solutions,as seen here,it turns a colour between red (strong acid) and pale orange (weak acid). In alkaline solutions,it turns between green (weak alkali) and purple (strong alkali) | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Andrew Lambert Photography |
Bildgröße: | 3216 px × 4387 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |