Tannic acid crystals. Polarized light micrograph of a section through crystals of tannic acid (tricarboxylic acid). Tannic acid is a commercial form of tannin,an astringent polyphenolic compound that binds to and precipitates proteins and various other organic compounds including amino acids and alkaloids. Magnification: x400 when printed at 10 centimetres tall | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Mis, Marek |
Bildgröße: | 3402 px × 5136 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |