Diphenyl(p-tolyl)phosphine CAS 1031-93-2

1. Diphenyl(p-tolyl)phosphine CAS 1031-93-2 is primarily used as a ligand in transition metal catalysis, particularly in cross-coupling reactions (e.g., Suzuki, Heck) and hydrogenation, where the electron-donating p-tolyl group enhances catalytic activity and stability.
2. Diphenyl(p-tolyl)phosphine serves as a precursor for phosphonium salts, ionic liquids, and flame-retardant additives in polymer and material science.
3. Diphenyl(p-tolyl)phosphine functions as a reducing agent, a stabilizing ligand for metal nanoparticles, and an intermediate in the synthesis of organophosphorus compounds.

1. Store diphenyl(p-tolyl)phosphine CAS 1031-93-2 in a cool, dry, well-ventilated area, under an inert atmosphere (e.g., nitrogen or argon), in tightly sealed, corrosion-resistant containers to prevent oxidation and degradation.
2. Keep diphenyl(p-tolyl)phosphine strictly separate from strong oxidizing agents, strong acids, and reactive chemicals to avoid exothermic reactions or hazardous decomposition.
3. Handle diphenyl(p-tolyl)phosphine with extreme care using non-sparking tools and grounded equipment; ensure containers are clearly labeled as flammable, air-sensitive, and toxic.

1. Immediately isolate the spill area, eliminate all ignition sources, and ensure forced ventilation; avoid direct contact and prevent the material from entering drains or soil.
2. Carefully collect spilled diphenyl(p-tolyl)phosphine using a clean, dry tool or a HEPA-filter vacuum cleaner, and place it into a sealed, labeled container for disposal as hazardous chemical waste.
3. Clean the contaminated surface thoroughly with a suitable solvent or detergent under controlled conditions; collect all contaminated materials and dispose of them in full compliance with local, national, and international regulations for phosphorus-containing hazardous waste.

1. Diphenyl(p-tolyl)phosphine CAS 1031-93-2 is harmful if swallowed, inhaled, or absorbed through the skin, and may cause skin irritation, serious eye damage, and respiratory tract irritation; it has a strong, unpleasant odor.
2. Diphenyl(p-tolyl)phosphine is flammable and may release toxic phosphorus oxides upon heating or combustion; prolonged or repeated exposure may affect specific organs (e.g., nervous system).
3. Always handle diphenyl(p-tolyl)phosphine in a certified fume hood or with adequate local exhaust, wearing appropriate PPE including chemical-resistant gloves, face shield, chemical goggles, and protective clothing.