Polyphosphoric acid (C09-1018-418)

General DescriptionPolyphosphoric acid (PPA) is widely employed as acylation and alkylation reagent in various reactions. It is a strong mineral acid with excellent dehydrating properties.ApplicationPolyphosphoric acid may be used in the synthesis of aromatic sulfones, N -substituted amides and 4-aminobenzophenones. It may also be used in dehydration, Fischer-Indole Synthesis, Beckmann Rearrangement and Schmidt Rearrangement reactions. It can be used as a catalyst in the synthesis of various aromatic ketones. PPA may be used as a catalyst during the synthesis of dimethyl carbonate (DMC) from urea and methanol. It also acts as an absorbent for the ammonia generated in the process. PPA may be used to prepare silica-supported polyphosphoric acid (PPA-SiO 2 ), an easy to handle, reusable heterogenous catalyst.Other NotesWe are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency. Find details here . Specifications and Purity: reagent grade, 115% H3PO4 basis. Molecular Formula: Hn+2PnO3n+1. EC Number: 232-417-0. PubChem CID: 73357664. Isomeric SMILES: OP(=O)(O)O.O1OP2OOP1O2. Related Document: https://ald-pub-files.oss-cn-shanghai.aliyuncs.com/aladdinsci/pdp/sds/1/P434208-SCI_978e97aeebbc140c171afbf88df34fa1.pdf.