3790-23-6

Basic information

• Product Name: tetraethyldiphosphine disulphide
• Synonyms: tetraethyldiphosphine disulphide;1,1,2,2-Tetraethyldiphosphine 1,2-disulfide;Tetraethyldiphosphine 1,2-disulfide;Tetraethyldiphosphine-1,2-disulfide
• CAS NO: 3790-23-6
• Molecular Formula: C₈H₂₀P₂S₂
• Molecular Weight: 214.288682
• EINECS: 223-261-4
• Mol File: 3790-23-6.mol

Chemical Properties

• Boiling Point: 302°Cat760mmHg
• Flash Point: 136.5°C
• Appearance: /
• Density: 1.078g/cm³
• Vapor Pressure: 0.00182mmHg at 25°C
• Refractive Index: 1.511
• CAS DataBase Reference: tetraethyldiphosphine disulphide(CAS DataBase Reference)
• NIST Chemistry Reference: tetraethyldiphosphine disulphide(3790-23-6)
• EPA Substance Registry System: tetraethyldiphosphine disulphide(3790-23-6)

Safety Data

• Hazardous Substances Data: 3790-23-6(Hazardous Substances Data)

Usage

Uses

Used in Rubber Industry:
Tetraethyldiphosphine disulphide is used as a rubber vulcanizing agent, which is essential for the production of rubber goods. It facilitates the crosslinking process, enhancing the rubber's strength, elasticity, and durability.
Used in Polymer and Elastomer Production:
In the polymer and elastomer industry, tetraethyldiphosphine disulphide serves as a crosslinking agent. It helps in forming a three-dimensional network within the polymer structure, improving the material's mechanical properties and resistance to environmental factors.
Used in Pesticide Production:
Tetraethyldiphosphine disulphide is utilized in the production of pesticides due to its insect-repellent properties. It is incorporated into formulations to protect crops from pests and enhance agricultural productivity.
Used in Insect Repellent Formulations:
As an insect repellent, tetraethyldiphosphine disulphide is used in various formulations to ward off insects and protect against bites and infestations. Its effectiveness in repelling insects makes it a valuable component in personal care and household products.

InChI:InChI=1/C8H20P2S2/c1-5-9(11,6-2)10(12,7-3)8-4/h5-8H2,1-4H3

Upstream product

• 925-90-6 ethylmagnesium bromide 
• 74-96-4 ethyl bromide 
• 3040-63-9 1,1,2,2-tetraethyldiphosphane 

Downstream Products

• 813-76-3 diethylphosphinic acid 
• 115018-02-5 ((CH₃)5C₅)2Yb(S₂P(C₂H₅)2) 
• 60-29-7 diethyl ether 
• 3040-63-9 1,1,2,2-tetraethyldiphosphane 
• 1251701-50-4 O-(p-methoxyphenyl) diethylphosphinothioate 
• 4885-50-1 O-benzyl diethylphosphinothioate 
• 1251445-55-2 diethyl(3,5-dimethoxybenzoyl)phosphine sulfide 
• 1251445-60-9 diethyl(2-phenylpropanoyl)phosphine sulfide 
• 42155-22-6 benzoyldiethylphosphine sulfide 
• 1251445-56-3 diethyl(2,4,6-trimethylbenzoyl)phosphine sulfide 
• 1251445-54-1 diethyl(4-methylbenzoyl)phosphine sulfide 
• 1251445-58-5 diethyl(4-chlorobenzoyl)phosphine sulfide 
• 1251445-53-0 diethyl(4-methoxybenzoyl)phosphine sulfide 
• 681-02-7 diethylfluorophosphine sulfide 

Relevant articles and documents

Preparation method of phosphinate, phosphinate and non-aqueous electrolyte

The present invention provides a method for preparing phosphinate, the phosphinate and a non-aqueous electrolyte. The method for preparing the phosphinate comprises the following steps: (1) reaction of Grignard reagent R1MgX with thiophosphoryl halide X3P=S in a solvent to obtain a first intermediate; (2) reaction of halogenating agent M' Xa and the first intermediate to obtian a second intermediate; and (3) reaction of the second intermediate with R2OH and water to obtain the phosphinate; wherein R1 and R2 are each selected from the group consisting of hydrocarbon groups or an organic group containing at least one element of boron, silicon, nitrogen, phosphorus, oxygen, sulfur, fluorine, chlorine, bromine, and iodine; X represents a halogen; M' represents a metal element; and a representsa valence of the metal element M'. The electrolyte prepared by from the phosphinate can improve the high-temperature cycle stability of a secondary battery, also has non-flammable, flame-retardant orself-extinguishing characteristics, and can improve the safety performance of the secondary battery.

The Reaction of Diethylthiophosphinyl Iodide, Et2P(S)I, with Nucleophiles

The compound Me2AsSI can exist in two different forms, either as dimethylarsinosulfenyl iodide [or (iodothio)dimethylarsane)], Me2As–S–I (A), or as dimethylthioarsinyl iodide (or dimethylarsinothioic iodide), Me2As(S)–I (B). To confirm that the structure of the product of the reaction between Bunsen's cacodyl disulfide Me2As(S)–S–AsMe2 and iodine is A and not B, the known diethylthiophosphinyl iodide (or diethylphosphinothioic iodide), Et2P(S)–I (2) was prepared and its hydrolytic stability and reactivity towards a variety of nitrogen, phosphorus(III), arsenic(III), oxygen, and sulfur(II) nucleophiles were studied. The results indicated that only a few reactions of 2 resembled those of A, thus strengthening the proposal that the reaction of Bunsen's cacodyl disulfide with iodine produced A and not B. A series of 31P NMR chemical shifts of diethylthiophosphinyl moiety is also reported. Et2P(S)–DMAP, synthesized and isolated during the presented study, is the ethyl analogue of Me2P(S)–DMAP, previously described as an important molecule. In our case, Et2P(S)–DMAP was found to be a good intermediate for the synthesis of phosphoryl or thiophosphoryl derivatives since it was more reactive than 2 towards nucleophiles.