@chemistry_icon: 🧪🥩 Nitric Acid + Protein — The Xanthoproteic Reaction! 💛 Why can certain proteins turn yellow when exposed to nitric acid? 👀🔬 The xanthoproteic reaction is a classic qualitative test for proteins containing aromatic amino acids such as tyrosine and tryptophan. Nitration of aromatic groups can produce yellow-colored compounds, giving the characteristic yellow appearance associated with the test. 💛 🧬 In simple terms: Protein + nitric acid → nitrated aromatic groups → yellow coloration This reaction shows how the chemical structure of amino acids can produce a visible color change! ⚗️✨ ⚠️ Safety warning: Concentrated nitric acid is highly corrosive and hazardous. This should not be attempted as a home experiment; demonstrations involving it require appropriate laboratory controls and trained supervision. #XanthoproteicTest #ProteinTest #Biochemistry #OrganicChemistry #NitricAcid

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Saturday 12 September 2026 21:24:50 GMT