Iodine Ethanol - Gram Staining Applications

Iodine ethanol mordant forms crystal violet-iodine complex within peptidoglycan preventing premature decolorization.

Microbiology labs apply 10-20 seconds preventing over-fixation that compromises acid alcohol differentiation.

Ethanol component begins Gram-negative decolorization while iodine stabilizes Gram-positive complexes.

Rapid drying prevents carryover contamination between slides during high-throughput staining.