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3-[bis(2-ethylhexyl)phosphorylmethyl]heptane, commonly referred to as trioctylphosphine oxide (TOPO), is a phosphorus-based organic compound that serves as a versatile solvent extraction reagent and surfactant in a variety of industrial applications. Characterized by its ability to selectively extract and separate metal ions, especially rare earth elements, from aqueous solutions, TOPO also plays a significant role in the synthesis of semiconductor nanocrystals and the purification of radioactive waste. Its low toxicity and compatibility with a broad spectrum of organic solvents contribute to its value and utility across scientific and industrial domains.

2785-32-2

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2785-32-2 Usage

Uses

Used in Chemical Extraction Industry:
3-[bis(2-ethylhexyl)phosphorylmethyl]heptane is used as a solvent extraction reagent for selectively extracting and separating metal ions, particularly rare earth elements, from aqueous solutions due to its unique affinity for these ions.
Used in Semiconductor Nanocrystal Synthesis:
In the field of nanotechnology, 3-[bis(2-ethylhexyl)phosphorylmethyl]heptane is utilized as a stabilizing agent in the synthesis of semiconductor nanocrystals, contributing to the formation of high-quality, uniform nanoparticles.
Used in Radioactive Waste Purification:
3-[bis(2-ethylhexyl)phosphorylmethyl]heptane is employed as a purification agent in the treatment of radioactive waste, aiding in the separation and concentration of radioactive materials for safe disposal or further processing.
Used in Surfactant Production:
As a surfactant, 3-[bis(2-ethylhexyl)phosphorylmethyl]heptane is used in various industrial processes to reduce surface tension between different liquids and solids, enhancing the efficiency of processes such as emulsification, wetting, and foaming.
These applications highlight the multifaceted role of 3-[bis(2-ethylhexyl)phosphorylmethyl]heptane in modern industry, underscoring its importance in chemical processing, material science, and environmental management.

Check Digit Verification of cas no

The CAS Registry Mumber 2785-32-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,7,8 and 5 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 2785-32:
(6*2)+(5*7)+(4*8)+(3*5)+(2*3)+(1*2)=102
102 % 10 = 2
So 2785-32-2 is a valid CAS Registry Number.
InChI:InChI=1/C24H51OP/c1-7-13-16-22(10-4)19-26(25,20-23(11-5)17-14-8-2)21-24(12-6)18-15-9-3/h22-24H,7-21H2,1-6H3

2785-32-2 Well-known Company Product Price

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  • Sigma-Aldrich

  • (77965)  Tris(2-ethylhexyl)phosphineoxide  Selectophore, ≥95.0%

  • 2785-32-2

  • 77965-250MG

  • 7,060.95CNY

  • Detail

2785-32-2SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 13, 2017

Revision Date: Aug 13, 2017

1.Identification

1.1 GHS Product identifier

Product name 3-[bis(2-ethylhexyl)phosphorylmethyl]heptane

1.2 Other means of identification

Product number -
Other names tri(2-ethylhexyl)phosphine oxide

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:2785-32-2 SDS

2785-32-2Upstream product

2785-32-2Downstream Products

2785-32-2Relevant academic research and scientific papers

Peroxo-containing metal complexes having amine oxide, phosphine oxide, arsine oxide, pyridine N-oxide or pyridine ligands as epoxidation catalysts

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, (2008/06/13)

PCT No. PCT/EP96/03888 Sec. 371 Date Mar. 11, 1998 Sec. 102(e) Date Mar. 11, 1998 PCT Filed Sep. 4, 1996 PCT Pub. No. WO97/10054 PCT Pub. Date Mar. 20, 1997Olefins can be epoxidized using catalysts I where M is a metal of the 4th to 7th transition group of the Periodic Table of the Elements, L1 is an amine oxide, phosphine oxide, arsine oxide, pyridine N-oxide or pyridine ligand of the formula II, III, VII or VIII, L2 is a customary auxiliary ligand or a further ligand L1 or a free coordination site, X is oxo oxygen or an imido ligand, m is 1 or 2, and n is 1, 2 or 3.

Preparation of epoxides from olefins using bis(triorganosilyl) peroxides in the presence of activators based on metallic acid derivatives

-

, (2008/06/13)

PCT No. PCT/EP97/00982 Sec. 371 Date Sep. 2, 1998 Sec. 102(e) Date Sep. 2, 1998 PCT Filed Feb. 28, 1997 PCT Pub. No. WO97/32867 PCT Pub. Date Sep. 12, 1997Epoxides are prepared from olefins using bis(triorganosilyl) peroxides in the presence of activators based on metalic acid derivatives of the formula where M is a metal of transition groups IV to VII, in particular molybdenum, tungsten or rhenium L is an uncharged ligand selected from the group consisting of amine oxides, phosphine oxides, arsine oxides, phosphoric triamides, formamides and pyridine N-oxides X is an inorganic ligand x is from 1 to 5 y is 0, 1 or 2, Z is 1 or 2 and n is 1 or 2.

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