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Luminol (99%)
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Description
Luminol (99%)
Other Names: 5-Amino-2,3-dihydro-1,4-phthalazinedione, 3-Aminophthalhydrazide
CAS Number: 521-31-3
Sum Formula: C₈H₇N₃O₂
Molar Mass: 177.16 g/mol
Appearance: Pale yellow to off-white crystalline powder
Luminol is an organic compound notable for its chemiluminescent properties—it emits a blue glow when it reacts with an oxidizing agent in alkaline conditions. This property makes it valuable in analytical and forensic applications, particularly for detecting trace amounts of blood.
Chemical and Physical Properties
Density: ~1.5 g/cm³ (estimated)
Melting Point: 329–332°C (decomposes)
Boiling Point: Not applicable (decomposes)
Solubility in Water: Slightly soluble
Solubility in Other Solvents: Soluble in DMSO, sodium hydroxide solution; slightly soluble in ethanol
Odor: Odorless
Applications
Forensic Science: Used for detecting blood traces based on the catalytic activity of iron in hemoglobin.
Chemiluminescence Research: Employed in studies of light-emitting reactions and oxidative stress.
Analytical Chemistry: Utilized in assays for detecting oxidizing agents or metal ions.
Industrial Testing: Applied in leak detection systems using chemiluminescent techniques.
Safety
Signal Word: Warning
H302 (15.3%): Harmful if swallowed [Warning Acute toxicity, oral]
H315 (94.9%): Causes skin irritation [Warning Skin corrosion/irritation]
H319 (94.9%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
H335 (93.2%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501
First Aid Measures
Eye Contact: Rinse with water for at least 15 minutes. Seek medical attention if irritation occurs.
Skin Contact: Wash with soap and water. Remove contaminated clothing. Seek medical advice if irritation develops.
Inhalation: Move to fresh air. Seek medical attention if respiratory symptoms occur.
Ingestion: Rinse mouth with water. Do not induce vomiting. Seek medical advice if feeling unwell.
Handling and Storage
Storage Conditions: Store in a cool, dry, well-ventilated area in tightly sealed containers. Keep away from strong oxidizers and direct sunlight.
Handling Precautions: Avoid formation of dust. Use appropriate protective equipment. Ensure good ventilation during handling.