144900-28-7

Basic information

• Product Name: 2,4,4-trimethyl-1-pentyl hypophosphorous acid
• Synonyms: 2,4,4-trimethyl-1-pentyl hypophosphorous acid
• CAS NO: 144900-28-7
• Molecular Weight: 178.211
• Mol File: 144900-28-7.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 2,4,4-trimethyl-1-pentyl hypophosphorous acid(CAS DataBase Reference)
• NIST Chemistry Reference: 2,4,4-trimethyl-1-pentyl hypophosphorous acid(144900-28-7)
• EPA Substance Registry System: 2,4,4-trimethyl-1-pentyl hypophosphorous acid(144900-28-7)

Safety Data

• Hazardous Substances Data: 144900-28-7(Hazardous Substances Data)

Upstream product

• 107-39-1 2,4,4-trimethyl-1-pentene 
• 107-40-4 2,4,4-trimethylpent-2-ene 

Downstream Products

• 1189189-18-1 (3,5-di-tert-butyl-4-hydroxy-benzyl)-(2,4,4-trimethylpentyl)phosphinic acid 

Relevant articles and documents

Process for the preparation of highly purified, dialkydithiophosphinic compounds

An improved process for production of dialkyldithiophosphinic acid including sulfurizing a purified dialkylphosphinic acid by: reacting a hypophosphorous acid or salt with a stoichiometric excess of an alpha olefin in the presence of a free radical initiator to form a reaction product comprising monoalkylphosphinic acid and dialkylphosphinic acid; adding sufficient aqueous base to the reaction product to i) form the salts of the phosphinic acids, and ii) establish an aqueous phase and an organic phase, wherein a monoalkylphosphinic acid solubilizes into an aqueous phase; separating the organic phase from the aqueous phase; acidifying the organic phase and removing the olefin from the organic phase; isolating the purified dialkylphosphinic acid product; and sulfurizing the purified dialkylphosphinic acid product to form a dialkydithiophosphinic acid. The present invention also provides a process for preparing purified dialkylthiophosphinic chloride, and a process for preparing purified dialkylmonothiophosphinic acids.