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ChemicalBook >> CAS DataBase List >> Trioctylphosphine oxide

Trioctylphosphine oxide

Trioctylphosphine oxide price.
  • $10 - $3175
  • Product name: Trioctylphosphine oxide
  • CAS: 78-50-2
  • MF: C24H51OP
  • MW: 386.63
  • EINECS:201-121-3
  • MDL Number:MFCD00002083
  • Synonyms:Trioctylphosphineoxide,99%TOPO;Trioctylphosphineoxide,min.90%TOPO;Phosphine oxide, trioctyl-;HISHICOLIN PO-8;CYANEX 921;TRI-N-OCTYLPHOSPHINOXIDE;TRIOCTYLPHOSPHINE OXIDE;Tri-n-octylphosphine oxide: (Trioctylphophine oxide)
Price56 Properties Safety Information Description
56 prices
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  • aablocks
  • AK Scientific
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  • American Custom Chemicals Corporation
  • Apolloscientific
  • Arctom
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  • Manufactureraablocks
  • Product numberAA0035OS
  • Product descriptionTrioctylphosphine oxide ≥98%
  • Packaging1g
  • Price$10
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA0035OS
  • Product descriptionTrioctylphosphine oxide ≥98%
  • Packaging5g
  • Price$15
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA0035OS
  • Product descriptionTrioctylphosphine oxide >95.0%(GC)
  • Packaging25g
  • Price$21
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA0035OS
  • Product descriptionTrioctylphosphine oxide >95.0%(GC)
  • Packaging100g
  • Price$54
  • Updated2026-05-28
  • Buy
  • ManufacturerAK Scientific
  • Product number6720AF
  • Product descriptionTrioctylphosphine oxide
  • Packaging100g
  • Price$198
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA811952
  • Product descriptionTri-n-octylphosphine Oxide 98%
  • Packaging5g
  • Price$18
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA811952
  • Product descriptionTri-n-octylphosphine Oxide 98%
  • Packaging25g
  • Price$44
  • Updated2026-06-05
  • Buy
  • ManufacturerAmbeed
  • Product numberA811952
  • Product descriptionTri-n-octylphosphine Oxide 98%
  • Packaging25g
  • Price$48
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA811952
  • Product descriptionTri-n-octylphosphine Oxide 98%
  • Packaging5g
  • Price$20
  • Updated2026-06-05
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberCHM0156583
  • Product descriptionTRIOCTYLPHOSPHINE OXIDE 95.00%
  • Packaging5G
  • Price$811.21
  • Updated2021-12-16
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  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberCHM0156583
  • Product descriptionTRIOCTYLPHOSPHINE OXIDE 95.00%
  • Packaging25G
  • Price$1162.78
  • Updated2021-12-16
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  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberCHM0156583
  • Product descriptionTRIOCTYLPHOSPHINE OXIDE 95.00%
  • Packaging100G
  • Price$2669.27
  • Updated2021-12-16
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  • ManufacturerApolloscientific
  • Product numberOR315488
  • Product descriptionTri-n-octylphosphine oxide 98%
  • Packaging2.5kg
  • Price$3175
  • Updated2026-06-04
  • Buy
  • ManufacturerApolloscientific
  • Product numberOR315488
  • Product descriptionTri-n-octylphosphine oxide 98%
  • Packaging500g
  • Price$637
  • Updated2026-06-04
  • Buy
  • ManufacturerApolloscientific
  • Product numberOR315488
  • Product descriptionTri-n-octylphosphine oxide 98%
  • Packaging25g
  • Price$51
  • Updated2026-06-04
  • Buy
  • ManufacturerApolloscientific
  • Product numberOR315488
  • Product descriptionTri-n-octylphosphine oxide 98%
  • Packaging5g
  • Price$21
  • Updated2026-06-04
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
aablocks AA0035OS Trioctylphosphine oxide ≥98% 1g $10 2026-05-28 Buy
aablocks AA0035OS Trioctylphosphine oxide ≥98% 5g $15 2026-05-28 Buy
aablocks AA0035OS Trioctylphosphine oxide >95.0%(GC) 25g $21 2026-05-28 Buy
aablocks AA0035OS Trioctylphosphine oxide >95.0%(GC) 100g $54 2026-05-28 Buy
AK Scientific 6720AF Trioctylphosphine oxide 100g $198 2021-12-16 Buy
Ambeed A811952 Tri-n-octylphosphine Oxide 98% 5g $18 2021-12-16 Buy
Ambeed A811952 Tri-n-octylphosphine Oxide 98% 25g $44 2026-06-05 Buy
Ambeed A811952 Tri-n-octylphosphine Oxide 98% 25g $48 2021-12-16 Buy
Ambeed A811952 Tri-n-octylphosphine Oxide 98% 5g $20 2026-06-05 Buy
American Custom Chemicals Corporation CHM0156583 TRIOCTYLPHOSPHINE OXIDE 95.00% 5G $811.21 2021-12-16 Buy
American Custom Chemicals Corporation CHM0156583 TRIOCTYLPHOSPHINE OXIDE 95.00% 25G $1162.78 2021-12-16 Buy
American Custom Chemicals Corporation CHM0156583 TRIOCTYLPHOSPHINE OXIDE 95.00% 100G $2669.27 2021-12-16 Buy
Apolloscientific OR315488 Tri-n-octylphosphine oxide 98% 2.5kg $3175 2026-06-04 Buy
Apolloscientific OR315488 Tri-n-octylphosphine oxide 98% 500g $637 2026-06-04 Buy
Apolloscientific OR315488 Tri-n-octylphosphine oxide 98% 25g $51 2026-06-04 Buy
Apolloscientific OR315488 Tri-n-octylphosphine oxide 98% 5g $21 2026-06-04 Buy
Next Last

Properties

Melting point :50-52 °C(lit.)
Boiling point :201-202 °C2 mm Hg(lit.)
Density :0,88 g/cm3
vapor pressure :0.004Pa at 50℃
Flash point :>230 °F
storage temp. :Store below +30°C.
solubility :<1g/l
form :Crystalline Powder, Crystals or Flakes
color :White to slightly yellow
Water Solubility :Insoluble
BRN :1796648
Henry's Law Constant :8.2×10-4 mol/(m3Pa) at 25℃, Zhang et al. (2010)
Stability :Stable. Incompatible with strong oxidizing agents.
InChI :1S/C24H51OP/c1-4-7-10-13-16-19-22-26(25,23-20-17-14-11-8-5-2)24-21-18-15-12-9-6-3/h4-24H2,1-3H3
InChIKey :ZMBHCYHQLYEYDV-UHFFFAOYSA-N
SMILES :CCCCCCCCP(=O)(CCCCCCCC)CCCCCCCC
LogP :9.54
CAS DataBase Reference :78-50-2(CAS DataBase Reference)
EPA Substance Registry System :Phosphine oxide, trioctyl- (78-50-2)

Safety Information

Symbol(GHS): Corrosion (GHS05)
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H318 Causes serious eye damage Serious eye damage/eye irritation Category 1 Danger P280, P305+P351+P338, P310
H412 Harmful to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 3 P273, P501
Precautionary statements:
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P273 Avoid release to the environment.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352 IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P332+P313 IF SKIN irritation occurs: Get medical advice/attention.

Description

Tri-n-octylphosphine oxide is a solvent used in the extraction of metals, especially uranium, zirconium and hafnium. It is also used as an auxiliary reagent in the solvent extraction of metals. It is also used to extract hydrogen bonding organic compounds. Further, it is useful as a capping ligand for the production of quantum dots, such as those consisting of cadmium selenide.

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Suppliers and manufacturers

Hebei Chuanghai Biotechnology Co,.LTD
Trioctylphosphine oxide
$9.00
Trioctylphosphine oxide CAS:78-50-2
Hebei Chuanghai Biotechnology Co., Ltd
Trioctylphosphine oxide
Trioctylphosphine oxide CAS:78-50-2
Henan Fengda Chemical Co., Ltd
Trioctylphosphine oxide
$2.00
Trioctylphosphine oxide CAS:78-50-2
career henan chemical co
Trioctylphosphine oxide
$1.00
Trioctylphosphine oxide CAS:78-50-2
Finetech Industry Limited
Shanghai Zhuangming Biopharma Co., Ltd.
Shanghai Daken Advanced Materials Co.,Ltd
Shanghai Bojing Chemical Co.,Ltd.
Henan Tianfu Chemical Co.,Ltd.
Fluoropharm Co., Ltd.