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Diisooctylphosphinic acid

Diisooctylphosphinic acid Structure
Diisooctylphosphinic acid structure
CAS No.
83411-71-6
Chemical Name:
Diisooctylphosphinic acid
Synonyms
Cyanex 272;Ionquest 290;Bis(2,4,4-trimethylpentyl)phosphinsure;NJKYUI;Extractant 272;Phosphoric acid derivative;bis(2,4,4-trimethylpentyl)-phosphinicaci;Di(2,4,4-trimethylpentyl) Phosphinic Acid;Phosphinic acid,bis(2,4,4-triMethylpentyl)-;Phosphinic acid, P,P-bis(2,4,4-trimethylpentyl)-
CBNumber:
CB0502599
Molecular Formula:
C16H35O2P
Molecular Weight:
290.42
MDL Number:
MFCD28145690
MOL File:
83411-71-6.mol
MSDS File:
SDS
Last updated:2026-09-12 18:48:21
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Diisooctylphosphinic acid Properties

Boiling point 417.1±14.0 °C(Predicted)
Density 0.916 g/mL at 20 °C(lit.)
vapor pressure 0.002Pa at 25℃
refractive index n20/D 1.460
storage temp. Sealed in dry,Room Temperature
solubility Chloroform (Sparingly), DMSO (Slightly), Methanol (Sparingly)
form Oil
pka 3.26±0.50(Predicted)
color Colourless
Water Solubility 12.5mg/L at 20℃
InChI InChI=1S/C16H35O2P/c1-13(9-15(3,4)5)11-19(17,18)12-14(2)10-16(6,7)8/h13-14H,9-12H2,1-8H3,(H,17,18)
InChIKey QUXFOKCUIZCKGS-UHFFFAOYSA-N
SMILES P(CC(C)CC(C)(C)C)(CC(C)CC(C)(C)C)(O)=O
LogP 1.83 at 30℃
EPA Substance Registry System Phosphinic acid, bis(2,4,4-trimethylpentyl)- (83411-71-6)

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)Health Hazard (GHS08)Environment (GHS09)
GHS07,GHS08,GHS09
Signal word  Danger
Hazard statements  H319-H411-H372
Precautionary statements  P273-P305+P351+P338
Hazard Codes  Xi
Risk Statements  36
Safety Statements  24-26
WGK Germany  1
TSCA  TSCA listed
HS Code  29319090
REACH Registrations Active

Diisooctylphosphinic acid price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TCI Chemical B6762 Bis(2,4,4-trimethylpentyl)phosphinic Acid 83411-71-6 25G $30 2026-04-30 Buy
TCI Chemical B6762 Bis(2,4,4-trimethylpentyl)phosphinic Acid 83411-71-6 100G $86 2026-04-30 Buy
Strem Chemicals 15-7555 Bis(2,4,4-trimethylpentyl)phosphinic acid, min. 85%, CYTOP® 501 min.85% 83411-71-6 100g $106 2026-04-30 Buy
Strem Chemicals 15-7555 Bis(2,4,4-trimethylpentyl)phosphinic acid, min. 85%, CYTOP® 501 min.85% 83411-71-6 500g $421 2026-04-30 Buy
Usbiological 263770 Bis(2,4,4-trimethylpentyl)phosphinic Acid ≥97% 83411-71-6 5g $458 2026-06-03 Buy
Product number Packaging Price Buy
B6762 25G $30 Buy
B6762 100G $86 Buy
15-7555 100g $106 Buy
15-7555 500g $421 Buy
263770 5g $458 Buy

Diisooctylphosphinic acid Chemical Properties, Uses, Production

Uses

Bis(2,4,4-trimethylpentyl)phosphonic acid is a colorless to pale yellow liquid with a fruity aroma; it is an extractant that can be used for nickel-cobalt separation and rare earth separation.

Chemical Properties

Color to faint yellow liquid

Synthesis

2,4,4-TRIMETHYL-1-PENTENE

107-39-1

2,4,4-TRIMETHYL-2-PENTENE

107-40-4

DIISOOCTYLPHOSPHINIC ACID

83411-71-6

Phosphinic acid, P-(2,4,4-trimethylpentyl)-

144900-28-7

Example 1: General procedure for the synthesis of bis(2,4,4-trimethylpentyl)hypophosphite: 40 g (0.377 mol) of sodium hypophosphite, 40 g of acetic acid, 132.3 g (0.943 mol) of diisobutene (80% purity), and 2.8 g (0.019 mol) of tert-butyl peroxide initiator were sequentially added to a 1.5-liter pressure vessel. The reaction mixture was heated and reacted at 135 °C for 30 hours, during which time 1.4 g of initiator was replenished every 8 hours. The reaction process was monitored by 31P NMR and the reaction mixture contained 75.3% of bis(2,4,4-trimethylpentyl)phosphinic acid product and 12.1% of monoalkyl phosphinic acid by-product. Upon completion of the reaction, 220 g of the reaction mixture was transferred to a conical flask and heated at 70-80°C to reduce viscosity. Thirty-eight grams of water was slowly added until separation of the two phases occurred, and the aqueous phase (pH ≈ 5) was separated and removed. The organic phase was washed with 75 g of 4% sodium hydroxide solution to remove the resulting 89.2 g aqueous layer. Subsequently, the organic phase was acidified and washed with 50 g of 10% sulfuric acid solution to remove the aqueous phase. The acidified and washed organic phase was filtered through PS filter paper and the volatile components were removed by vacuum distillation. The final product was 95 g of bis(2,4,4-trimethylpentyl)hypophosphonic acid with 93.7% purity and 86.9% yield based on phosphorus NMR calculations. The composition of the product is detailed in Table I.

References

[1] Patent: US2008/103330, 2008, A1. Location in patent: Page/Page column 6
[2] Patent: US2006/89508, 2006, A1. Location in patent: Page/Page column 4

Diisooctylphosphinic acid synthesis

107-39-1
107-40-4
83411-71-6
144900-28-7
Synthesis of Diisooctylphosphinic acid from 2,4,4-Trimethyl-1-pentene and 2,4,4-Trimethyl-2-pentene

Diisooctylphosphinic acid Preparation Products And Raw materials

Raw materials

Phosphinic acid, P-(2,4,4-trimethylpentyl)- Phosphinothioic chloride, P,P-bis(2,4,4-trimethylpentyl)- (2,4,4-trimethylpentyl)phosphonic acid Diisooctylthiophosphinic acid 2,4-Dimethylpentane
2,4,4-Trimethyl-1-pentene 2,4,4-Trimethyl-2-pentene N,N-Dimethylformamide dimethyl acetal

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Preparation Products

Diisooctylphosphinic acid Suppliers

Global Suppliers ( 235)
Supplier Tel Email Country ProdList Advantage
Shanghai Thoreco Novel Material Co. Ltd 021-34202258 19391107643 Sales@thoreco.com China 183 58
Tianjin Kingzu Technology Co., Ltd. 022-18910637181 18910637181 18910637181@163.cn China 4 58
Zhongshan Dixin Chemical Co., Ltd 19849939632; 19849939632 2470479589@qq.com China 1748 58
Jiangxi Xinxin Chemical Co., Ltd. +86-15957176628 15957176628 1302650044@qq.com China 16 58
Wuhan Changsheng Lubao Trading Co., Ltd. 13072720131 18627936172 sales@winchemglobal.com China 107 58
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
Beijing Ouhe Technology Co., Ltd 13552068683 13522913783 2355560935@qq.com China 11777 60
Nanjing Chemlin Chemical Co., Ltd 025-83697070 13770331960 info@chemlin.com.cn China 16305 64
Zhengzhou ALFA Chemical Co., Ltd. 0371-53732842 15981811963 1758257485@qq.com China 949 56
Supplier Advantage
Shanghai Thoreco Novel Material Co. Ltd 58
Tianjin Kingzu Technology Co., Ltd. 58
Zhongshan Dixin Chemical Co., Ltd 58
Jiangxi Xinxin Chemical Co., Ltd. 58
Wuhan Changsheng Lubao Trading Co., Ltd. 58
J & K SCIENTIFIC LTD. 76
Energy Chemical 61
Beijing Ouhe Technology Co., Ltd 60
Nanjing Chemlin Chemical Co., Ltd 64
Zhengzhou ALFA Chemical Co., Ltd. 56

View Latest Price from Diisooctylphosphinic acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
DIISOOCTYLPHOSPHINIC ACID pictures 2026-09-14 DIISOOCTYLPHOSPHINIC ACID
83411-71-6
 0.99 RongNa Biotechnology Co.,Ltd
Bis(2,4,4-trimethylpentyl)phosphinic acid pictures 2026-09-14 Bis(2,4,4-trimethylpentyl)phosphinic acid
83411-71-6
 $2.00 1kg 90% 1000mt Jinan Finer Chemical Co., Ltd
Diisooctylphosphinic acid pictures 2026-09-11 Diisooctylphosphinic acid
83411-71-6
 1KG 98%min 30tons/month WUHAN FORTUNA CHEMICAL CO., LTD

Diisooctylphosphinic acid Spectrum

DIISOOCTYLPHOSPHINIC ACID(83411-71-6)1HNMR

83411-71-6 (Diisooctylphosphinic acid) Related Search:

Cyclophosphamide monohydrate Phosphinic acid,P,P-bis(2-ethylhexyl)- bis(3,3-dimethylbutyl)phosphinic acid Phosphinic acid, diheptyl- dioctylphosphinic acid
Dibutylphosphinic acid

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bis(2,4,4-trimethylpentyl)-phosphinicaci Bis(2,4,4-trimethylpentyl)phosphinsure Ionquest 290 Phosphinic acid,bis(2,4,4-triMethylpentyl)- Phosphinic acid, P,P-bis(2,4,4-trimethylpentyl)- Di(2,4,4-trimethylpentyl) Phosphinic Acid NJKYUI Extractant 272 Phosphoric acid derivative Cyanex 272 83411-71-6