Tannic acid crystals. Polarized light micrograph of a section through crystals of tannic acid (tricarboxylic acid). Tannic acid is a commercial form o

---

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: x100 when printed at 10 centimetres tall.

---

Size: 5136px × 3402px
Photo credit: © MAREK MIS/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: -, abstract, acid, astringent, biochemical, biochemistry, chemical, chemistry, colorful, colors, colourful, colours, compound, crystal, crystals, light, microcrystal, microcrystals, micrograph, microscopy, nature, organic, pattern, patterns, photomicrograph, polarised, polyphenolic, section, sectioned, tannic, tannin, tannins, tannoid