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Hucker’s Crystal Violet Gram Stain is a primary stain used in the Gram staining technique to differentiate bacteria by staining Gram-positive bacteria purple.

🏭⚗️ Production
This stain is prepared by dissolving crystal violet in ethanol, then mixing with ammonium oxalate solution. The final mixture usually contains about 2% crystal violet and 0.8% ammonium oxalate in ethanol. The solution is filtered and stored in a dark container to prevent degradation.

🔬 Properties
Hucker’s Crystal Violet is a purple, water-soluble basic dye that binds strongly to the peptidoglycan layer of bacterial cell walls, especially in Gram-positive bacteria, allowing differentiation during staining.

🧪 Applications
It is primarily used as the first step in the Gram staining process to identify and classify bacteria in microbiology laboratories worldwide.

⚠️ Safety
Crystal violet may cause skin and eye irritation and should be handled with care. Use protective gloves and eyewear, and avoid inhalation or ingestion.