Triphenylphosphine oxide
Phosphonium salts, structurally similar to quaternary ammonium salts, have a phosphorus atom with a larger atomic radius than nitrogen, resulting in stronger polarization effects compared to quaternary ammonium salts. Main applications: Precursor for phosphonium ylides in Wittig reactions in fine chemicals, pharmaceuticals, and liquid crystal monomer synthesis; curing accelerator in polymer polymerization; phase transfer catalyst in organic synthetic chemistry.

CAS# 15464-47-8

Molecular Formula C30H25OP

Molecular Weight 432.49

Physical Properties 60% content, off-white solid.

Soluble Slightly soluble in water and alcohol.
Applications
Primarily used as a catalyst for esterification and transesterification reactions.

Packaging & Storage
25kg/cardboard drum. Store in a dark, cool, dry, and well-ventilated area.