56 acetic acid_56 acetic acid

Glacial HCl Acid

Glacial acetic acid, a purified form of acetic acid at around 99% concentration, plays a vital role in histological studies, particularly as a fixative. Fixation is a crucial step in preparing biological tissues for microscopic examination, as it preserves the structure of the cells and tissues. The use of glacial acetic acid as a fixative is well-recognized in various biological and medical research contexts due to its unique properties.

Glacial acetic acid is a concentrated form of acetic acid, a clear, colorless liquid known for its distinctive pungent smell and sour taste. It is a vital chemical compound with the molecular formula CH₃COOH, and its concentrated form contains at least 99% acetic acid by weight. The term glacial refers to its ability to solidify into ice-like crystals at low temperatures, specifically below 16.6°C (62°F). This characteristic is what differentiates glacial acetic acid from the more commonly available diluted forms, typically found in household vinegar, which contains about 4-8% acetic acid.

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