813-76-3

Basic information

• Product Name: DIETHYLPHOSPHINIC ACID
• Synonyms: DIETHYLPHOSPHINIC ACID;diethylphosphonic acid;Diaethyl-phosphinsaeure
• CAS NO: 813-76-3
• Molecular Formula: C₄H₁₁O₂P
• Molecular Weight: 122.102701
• Mol File: 813-76-3.mol
• Article Data: 17

Chemical Properties

• Melting Point: 18.5°C
• Boiling Point: 320°C
• Flash Point: 135.5 °C
• Appearance: /liquid
• Density: 1.05 g/cm³
• Vapor Pressure: 6.82E-05mmHg at 25°C
• Refractive Index: 1.413
• PKA: 3.18±0.50(Predicted)
• CAS DataBase Reference: DIETHYLPHOSPHINIC ACID(CAS DataBase Reference)
• NIST Chemistry Reference: DIETHYLPHOSPHINIC ACID(813-76-3)
• EPA Substance Registry System: DIETHYLPHOSPHINIC ACID(813-76-3)

Safety Data

• Hazardous Substances Data: 813-76-3(Hazardous Substances Data)

Usage

General Description

Diethylphosphinic acid is a chemical compound with the formula (C2H5)2PO2H. It is an organophosphorus compound commonly used in the synthesis of various organic compounds and as a catalyst in organic reactions. Diethylphosphinic acid has a variety of industrial applications, including its use as a flame retardant, plasticizer, and as a corrosion inhibitor. It is also used in the manufacturing of pharmaceuticals and agricultural products. Diethylphosphinic acid is a colorless, odorless liquid that is soluble in organic solvents and has low volatility. It is considered to have low toxicity and is generally stable under normal conditions of use and storage.

InChI:InChI=1/C4H11O2P/c1-3-7(5,6)4-2/h3-4H2,1-2H3,(H,5,6)

Upstream product

• 3790-23-6 tetraethyldiphosphine disulfide 
• 627-49-6 Diethylphosphine 
• 866-54-6 diethyldithiophosphinic acid 
• 66567-93-9 (5,6-dihydro-p-dioxin-2-yl)diethylphosphine oxide 
• 5689-41-8 methyl diethylphosphinate 
• 74-85-1 ethene 
• 75-95-6 1,1,1,2,2-pentabromoethane 
• 4519-78-2 benzyl(diethyl)phosphine oxide 
• 100-52-7 benzaldehyde 
• 74-96-4 ethyl bromide 
• 75-03-6 ethyl iodide 
• 1833-92-7 tetraethylbiphosphine disulphide 
• 1112-37-4 diethylphosphinic chloride 
• 7215-33-0 diethylphosphine oxide 

Downstream Products

• 1112-37-4 diethylphosphinic chloride 
• 7495-97-8 diethylphosphinic acid anhydride 
• 107264-94-8 diethyl-dichloromethylphosphine oxide 
• 3982-89-6 diethylthiophosphoryl chloride 
• 55743-46-9 1-Diaethylphosphinyl-2-diphenyl-phosphinylaethan 
• 42346-39-4 trimethylsiloxydiethylphosphinate 
• 34253-27-5 C₁₁H₁₅N₂O₅P 

Relevant articles and documents

Manufacturing method of alkylhypophosphorous-type compound by circulation-method, and manufacturing method of hypophosphorous-type flame retardants by circulation-method

The present invention relates to a liquid reagent comprising a hypophosphorous acid or an alkali metal salt of hypophosphorous acid, an initiator and water. A gaseous reactant comprising an alkene having 2 and 4 carbon atoms. A method for producing an alkali metal salt of alkyl hypophosphorous acid or alkylhypophosphorous acid. The present invention relates to a method for preparing an alkyl hypophosphorous-based compound, and a method for producing a hypophosphorous-based flame retardant.

Single ethyl phosphinic acid group containing diethyl phosphinic acid and its salt preparation method

The invention relates to the field of fine organic chemical industry and polymer materials, and particularly relates to a preparation method of diethyl phosphinic acid without monoethyl phosphinic acid group and salt thereof. The preparation method of diethyl phosphinic acid comprises the following steps: uniformly mixing sodium hypophosphite monohydrate, acetic anhydride and organic solvent; adding organic acid and concentrated sulfuric acid or anhydrous sulfuric acid; cooling and standing; filtering and recovering sodium sulfate to obtain an anhydrous phosphinic acid organic acid solution; adding ethylene and dropwise adding a trigger mixture to obtain a first mixture; and distilling and recovering the organic acid and the organic solvent to obtain a product. The preparation method is simple and easy to implement, the monoethyl phosphinic acid is completely converted into diethyl phosphinic acid, and the prepared diethyl phosphinic acid does not contain the monoethyl phosphinic acid group. In the invention, the diethyl phosphinic acid without the monoethyl phosphinic acid group serves as a reactant and reacts with a metal compound, the obtained diethyl phosphinate does not contain impurities such as organic sodium salt, and the generated waste liquid is simple to dispose.

Theoretical and experimental study of reactions of esters of P(IV) acids with pentachloroethane

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