Titanium(III) phosphide

Titanium(III) phosphide (TiP) is an inorganic chemical compound of titanium and phosphorus. Normally encountered as a grey powder, it is a metallic conductor with a high melting point. It is not attacked by common acids or water. Its physical properties stand in contrast to the group 1 and group 2 phosphides that contain the P³⁻ anion (such as Na₃P), which are not metallic and are readily hydrolysed. Titanium phosphide is classified as a "metal-rich phosphide", where extra valence electrons from the metal are delocalised.

Titanium phosphide can be prepared by the reaction of TiCl₄ and PH₃.

There are other titanium phosphide phases, including Ti₃P, Ti₂P, Ti₇P₄, Ti₅P₃, and Ti₄P₃.

Titanium phosphide should not be confused with titanium phosphate or titanium isopropoxide, both of which are sometimes known by the acronym TIP.