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Description
TCI E1458 2-Ethoxy-1,3,2-dioxaphospholane 2-Oxide, identified by CAS number 823-31-4, is a cyclic phosphate compound classified as an additive for battery materials. Its structure consists of a five-membered ring containing a phosphorus atom together with an ethoxy group, a configuration that makes the compound reactive in a controlled manner inside electrochemical cells. In battery research, cyclic phosphate based additives are widely studied for their ability to participate in the formation of interfacial layers on electrode surfaces and for the way they influence the combustion behaviour of electrolytes. The material is supplied for laboratory use, where it is introduced into experimental electrolyte formulations rather than consumed in bulk.
The characteristics that lead researchers to select this compound are its high phosphorus content relative to its molecular weight and the cyclic ring that opens readily at certain potentials. This electrochemical ring opening is believed to generate phosphate species that become incorporated into the solid electrolyte interphase on the anode as well as into the protective layer formed on the cathode. The phosphorus content also plays a role in inhibiting radical reactions during combustion, which makes the compound attractive for electrolyte studies where thermal behaviour is a concern. Together, these two properties — interfacial film formation and radical inhibition — explain why the material appears repeatedly in additive screening work.
In laboratory practice, the substance is added in small quantities to electrolyte formulations so that its effect on the performance and safety of test cells can be examined. Indonesian research laboratories working on battery materials typically handle it at the bench scale, preparing coin cells or small pouch cells in which additive concentration is varied systematically. Because only minor amounts are required per formulation, a single package generally supports an extended series of comparative experiments within a university or institutional research programme.
Laboratory Applications
Electrolyte additive screening — the compound is dosed at low concentration into baseline electrolyte formulations so that its individual contribution to cell behaviour can be isolated and compared against additive-free references.
Solid electrolyte interphase studies — because electrochemical ring opening is believed to yield phosphate species incorporated into the anode interphase, the material serves as a model additive for interfacial film research.
Cathode protective layer investigation — researchers use this additive to examine how phosphate derived species contribute to the protective layer formed on the cathode surface during cycling.
Electrolyte flammability research — the high phosphorus content relative to molecular weight makes this compound suitable for studies on the inhibition of radical reactions during electrolyte combustion.
Cell safety and performance evaluation — small additions to test cell electrolytes allow laboratories to assess how the additive influences both electrochemical performance and safety characteristics simultaneously.
Chemical class: cyclic phosphate compound with a five-membered phosphorus-containing ring and an ethoxy group
Pack sizes: available in laboratory research quantities; please refer to the product listing for currently offered package options
Storage: store according to the conditions stated on the manufacturer label and the accompanying safety data sheet
Handling and Storage
Store the container tightly closed in a cool, dry and well ventilated area, away from heat sources, ignition sources and incompatible materials, following the conditions specified on the manufacturer label and safety data sheet. Keep the material in its original supplier container or in a chemically compatible sealed vessel, since organophosphorus compounds are generally sensitive to moisture and should be protected from atmospheric humidity. Handle the substance inside a fume hood while wearing appropriate laboratory personal protective equipment, including safety glasses, chemical resistant gloves and a laboratory coat. When the compound is used for electrolyte preparation, transfers are commonly carried out under an inert atmosphere in a glovebox to avoid moisture contamination of the formulation. Label all working solutions clearly, keep the container closed when not in use, and dispose of residues in accordance with applicable institutional chemical waste procedures.
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