3454-66-8

Basic information

• Product Name: DIETHYL DITHIOPHOSPHATE, POTASSIUM SALT
• Synonyms: DIETHYL DITHIOPHOSPHATE, POTASSIUM SALT;O,O-DIETHYL HYDROGEN DITHIOPHOSPHATE POTASSIUM SAULT;O,O-DIETHYLPHOSPHORODITHIOATE,POTASSIUMSALT;POTASSIUM DIETHYL DITHIOPHOSPHATE);diethy dithiophosppate potassiuM salt
• CAS NO: 3454-66-8
• Molecular Formula: C₄H₁₀O₂PS₂*K
• Molecular Weight: 224.32
• Product Categories: Organic Building Blocks;Organic Phosphates/Phosphites;Phosphorus Compounds
• Mol File: 3454-66-8.mol
• Article Data: 6

Chemical Properties

• Melting Point: 187 °C(lit.)
• Boiling Point: 232.7°Cat760mmHg
• Flash Point: 94.5°C
• Appearance: /
• Density: 1.214g/cm³
• CAS DataBase Reference: DIETHYL DITHIOPHOSPHATE, POTASSIUM SALT(CAS DataBase Reference)
• NIST Chemistry Reference: DIETHYL DITHIOPHOSPHATE, POTASSIUM SALT(3454-66-8)
• EPA Substance Registry System: DIETHYL DITHIOPHOSPHATE, POTASSIUM SALT(3454-66-8)

Safety Data

• Hazard Codes: Xn
• Statements: 20/21/22
• Safety Statements: 26-36
• WGK Germany: 3
• Hazardous Substances Data: 3454-66-8(Hazardous Substances Data)

Usage

General Description

Potassium salt of Diethyl Dithiophosphate, represented by the chemical formula (C2H5O)2PSSK, is a highly efficient and widely used collector in the flotation process of various non-ferrous metals. It is a chemical compound that falls into the class of organothiophosphorus compounds, is utilized in mining application especially in the flotation of sulfide minerals and has excellent selectivity. DIETHYL DITHIOPHOSPHATE, POTASSIUM SALT is typically light yellow liquid and is found to be highly soluble in water under normal temperature and pressure. It should be handled with caution due to its corrosiveness and potential to cause eye and skin irritation.

InChI:InChI=1/C4H11O2PS2.K/c1-3-6-7(5,8)9-4-2;/h3-4H2,1-2H3,(H,5,8);/q;+1/p-1

Upstream product

• 17567-17-8 potassium hydridotris(3,5-dimethylpyrazolyl)borate 
• 298-06-6 O,O-Diethyl hydrogen phosphorodithioate 
• 64-17-5 ethanol 

Downstream Products

• 6119-96-6 dithiophosphoric acid O,O'-diethyl ester-S-phthalimidomethyl ester 
• 947-34-2 O,O-diethyl S-phenyl phosphorodithioate 
• 13286-37-8 S-benzyl O,O-diethyl phosphorodithioate 
• 38090-86-7 dithiophosphoric acid S-(5-ethoxy-[1,3,4]thiadiazol-2-ylmethyl) ester O,O'-diethyl ester 
• 38090-96-9 dithiophosphoric acid O,O'-diethyl ester S-(5-ethylsulfanyl-[1,3,4]thiadiazol-2-ylmethyl) ester 
• 19700-59-5 2-[2-(Diethoxy-thiophosphorylsulfanyl)-acetylamino]-4-methyl-pentanoic acid ethyl ester 
• 37744-88-0 Di-O-aethyl-S-<1-methylcarbamoyl-aethyl>dithiophosphat 
• 29800-19-9 Di-O-ethyl-S-(N-ethyl-carbamoylmethyl)-dithiophosphat 
• 2275-18-5 prothoate 
• 63233-91-0 (Diethoxy-thiophosphorylsulfanylmethylsulfanyl)-acetic acid methyl ester 
• 5969-94-8 O,O-Diethyl-(2-ethoxycarbonyl-ethyl)-dithiophosphat 
• 995-30-2 dithiophosphoric acid O,O'-diethyl ester S-(2-oxo-propyl) ester 
• 31875-40-8 dithiophosphoric acid O,O'-diethyl ester S-(5-methyl-[1,3,4]oxadiazol-2-ylmethyl) ester 
• 38090-93-6 dithiophosphoric acid O,O'-diethyl ester S-(5-methylsulfanyl-[1,3,4]thiadiazol-2-ylmethyl) ester 

Relevant articles and documents

Dithiophosphate radical terminated mercaptosilane coupling agent as well as synthesis method and application thereof

The invention belongs to a silane coupling agent, and particularly relates to a dithiophosphate radical terminated mercaptosilane coupling agent as well as a synthesis method and an application thereof. The dithiophosphate radical terminated mercaptosilane coupling agent has a structure as shown in a formula (I) which is described in the specification. According to the dithiophosphate radical terminated mercaptosilane coupling agent shown in the formula (I), the interaction between a polymer and filler can be enhanced, the hysteresis loss of a rubber material is remarkably reduced, the Payne effect of a rubber material is reduced, and the dispersity of white carbon black is improved, so that the oil consumption and the emission of carbon dioxide in the tire driving process are reduced, andthe wear resistance of the tire is enhanced; meanwhile, the dithiophosphate radical terminated mercaptosilane coupling agent provided by the invention has the effect of promoting vulcanization, and can reduce the energy loss in the vulcanization process.

Synthesis, characterization, and oxygen atom transfer reactions of {HB(Me2C3N2H)3}MoO{S 2P(OR)2} and {HB(Me2C3N2H)3}MoO 2{η1-S2P(OEt)2}

The compounds {HB(Me2pz)3}MoO{S2P(OEt)2} (1a) and {HB(Me2pz)3}MoO2{S2P(OEt) 2} (2) containing bidentate and monodentate S2P(OEt)2- ligands, respectively, have been prepared by the reaction of Mo2O3{S2P(OEt)2}4 with K{HB(Me2pz)3} {HB(Me2pz)3}MoO{S2P(OEt)2} and its analogue {HB(Me2pz)3}MoO{S2P(OMe)2} have also been prepared in higher yield by the reaction of Mo2O3{S2P(OEt)2}4 with Ph3P followed by reaction with K{HB(Me2pz)3}. Both 1a and 2 have been structurally characterized by X-ray crystallography. The blue Mo(IV) compound 1a crystallizes in the monoclinic space group P21/c with a = 17.987 (3) ?, b = 8.219 (3) ?, c = 18.681 (7) ?, β = 104.88 (2)°, and Z = 4. The molybdenum atom is six-coordinate and facially coordinated by the tridentate HB(Me2pz)3- ligand, by one terminal oxo ligand (Mo=O = 1.644 (6) ?) and by the bidentate S2P(OEt)2- ligand. The gold-colored Mo(VI) complex 2 crystallizes as the toluene hemisolvate in the triclinic space group P1 with a = 8.421 (1) ?, b = 12.654 (6) ?, c = 15.240 (5) ?, α = 87.77 (3)°, β = 81.36 (2)°, γ = 74.37 (3)°, and Z = 2. The molybdenum atom is six-coordinate with a tridentate HB(Me2Pz)3- ligand, two terminal oxo ligands (Mo=O = 1.690 (2) and 1.697 (2) ?), and a monodentate S2P(OEt)2- ligand. The S2P(OEt)2- ligand adopts an extended geometry, and the uncoordinated sulfur atom is 5.42 ? from the molybdenum atom. Compound 1a reduces Me2SO to Me2S. The kinetic data can be fit to a second-order rate law with k = 5.46 (6) × 10-5 (M s)-1 in toluene at 40°C. Activation parameters determined from plots of ln (k/T) vs 1/T are ΔH? = 15.3 (2) kcal mol-1 and ΔS? = -29 (2) cal (mol K)-1. The large negative entropy of activation indicates that an associative mechanism is operative. Compound 2 oxidizes Ph3P to Ph3PO. Again, a second-order rate law is followed: k = 3.4 (1) × 10-3 (M s)-1 in toluene at 25°C. Both complexes catalyze the oxidation of Ph3P by Me2SO.

Reaction of Phosphinyl and Phosphinothioyl Disulfides with Diazomethane

Four kinds of 4-substituted phenyl diethoxyphosphinyl disulfide (substituents: H, CH3, C2H5, Cl) and phenyl diethoxyphosphinothioyl disulfide reacted readily with diazomethane.The phosphinyl disulfides produced diethyl (4-substituted phenylthio)methyl phosphorothionate and the isomer, diethyl S-(4-substituted phenylthio)methyl phosphorothiolate, as the main products, whereas the phosphinothioyl disulfide produced only diethyl S-(phenylthio)methyl phosphorodithioate.The possible mechanism involved is as follows: the S-S bond in (EtO)2P(X)-S-S-C6H4R (X=O or S) is cleaved by nucleophilic attack of diazomethane at the sulfur atom bonded to the phenyl group to produce and (+)N2CH2-S-C6H4R; the latter reacts with the former with loss of nitrogen; therefore, when X is O, two compounds, (EtO)2P(S)-O-CH2-S-C6H4R and (EtO)2P(O)-S-CH2-S-C6H4R, are produced, when X is S, only (EtO)2P(S)-S-CH2-S-C6H4R is obtained.