1 5-Diphenylcarbazide CAS 140-22-7

1. 1,5-Diphenylcarbazide is primarily used as a highly selective chromogenic reagent for the colorimetric determination of chromium(VI), forming a red-violet complex that is measured spectrophotometrically for environmental water monitoring and microfluidic detection systems.
2. 1 5-Diphenylcarbazide CAS 140-22-7 serves as a redox indicator in analytical chemistry and is utilized in the detection of various metal ions including cadmium, mercury, magnesium, osmium, and for detecting aldehydes.
3. Applications of 1,5-Diphenylcarbazide also include its use in the development of paper-based analytical devices for metal detection, as capping agents for silver nanoparticles in amino acid detection, and in green analytical methods using natural solvents for copper(II) assays.

1. Store 1,5-Diphenylcarbazide in a tightly sealed container under inert gas (argon/nitrogen) in a cool, dry place, protected from light, as it is heat sensitive, light sensitive, and air sensitive. Recommended storage temperature is 2-8°C (refrigerated).
2. Keep 1,5-Diphenylcarbazide strictly away from strong oxidizing agents due to incompatibility. Avoid dust generation as the material in sufficient quantity and reduced particle size is capable of creating a dust explosion.
3. Always  1 5-Diphenylcarbazide CAS 140-22-7 use appropriate personal protective equipment (PPE) including chemical-resistant gloves and safety goggles when handling 1,5-Diphenylcarbazide to avoid skin, eye, and respiratory contact. Use with adequate ventilation and minimize dust generation.

1. Immediately isolate the spill area and ensure adequate ventilation. Contain 1,5-Diphenylcarbazide using dry, inert, non-combustible absorbent material, avoiding dust generation, and prevent entry into drains or waterways.
2. Carefully sweep up 1 5-Diphenylcarbazide CAS 140-22-7 using a clean, non-sparking tool or vacuum/sweep material into suitable disposal containers. For small spills/leaks, sweep up and place into a suitable container for disposal.
3. Personnel must wear suitable PPE including chemical-resistant gloves and eye protection during cleanup. 1,5-Diphenylcarbazide is not regulated as a hazardous material for transport by some regulations (DOT).

1. 1,5-Diphenylcarbazide is classified with GHS signal word "Warning". It causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335).
2. 1,5-Diphenylcarbazide is harmful if swallowed and may be absorbed through the skin in harmful amounts. 1 5-Diphenylcarbazide CAS 140-22-7 is stable under normal conditions but decomposes when heated, producing toxic and irritating fumes including nitrogen oxides, carbon monoxide, and carbon dioxide. NFPA health rating is 2 (moderate hazard), flammability 1, and instability 0.
3. 1,5-Diphenylcarbazide has a melting point of 170-177°C. It is soluble in glacial acetic acid, alcohol, and acetone, and slightly soluble in water. Always consult the specific Safety Data Sheet (SDS) for complete hazard information and first-aid procedures (P305+P351+P338 for eyes, P302+P352 for skin, P304+P340 for inhalation).