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38221

Sigma-Aldrich

Diisooctyldithiophosphinic acid

technical, ~85% (T)

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Synonym(s):
Bis(2,4,4-trimethylpentyl)dithiophosphinic acid
Empirical Formula (Hill Notation):
C16H35PS2
CAS Number:
107667-02-7
Molecular Weight:
322.55
MDL number:
MFCD00216698
UNSPSC Code:
12352100
PubChem Substance ID:
57649819

grade

technical

Assay

~85% (T)

refractive index

n20/D 1.507

density

0.95 g/mL at 20 °C (lit.)

SMILES string

CC(CC(C)(C)C)CP(S)(=S)CC(C)CC(C)(C)C

InChI

1S/C16H35PS2/c1-13(9-15(3,4)5)11-17(18,19)12-14(2)10-16(6,7)8/h13-14H,9-12H2,1-8H3,(H,18,19)

InChI key

YOCZZJWFWDUAAR-UHFFFAOYSA-N

General description

Diisooctyldithiophosphinic acid has been reported as soft base. As per Pearson′s Hard and Soft Acids and Bases principle since soft base has an affinity for soft acid, it exhibits high affinity for soft cations.

Application

Complexing agent for the extraction of transition metals
Diisooctyldithiophosphinic acid (bis(2,4,4-trimethyl pentyl)dithiophosphinic acid, cyanex 301) may be used in the following studies:
  • As mobile carrier in the preparation of new supported liquid membrane (SLM) system, useful for the selective transport of bismuth ions.
  • As an efficient carrier for the preparation of bulk liquid membrane (BLM) system, utilized for the transport of methylene blue.
  • As carrier in the preparation of a novel bulk liquid membrane (BLM) system, used to evaluate mercury transport and recovery of the ions from acidic nitrate solutions.

Signal Word

Danger

Hazard Statements

H226,H302,H314,H331,H411

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B

WGK

WGK 3

Flash Point(F)

closed cup

Flash Point(C)

closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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Highly efficient and selective transport of methylene blue through a bulk liquid membrane containing Cyanex 301 as carrier.
Madaeni SS, et al.
Separation and Purification Technology, 81(2), 116-123 (2011)
Effects of membrane characteristics on selective transport of bismuth ion through supported liquid membrane
Madaeni SS and Karami Zand HR.
9th Iranian Chemical Engineering Congress (IChEC9), Iran University of Science and Technology (IUST, 23, 25-25 (2004)
Selective transport of bismuth ions through supported liquid membrane.
Madaeni SS and Karami Zand HR.
Chemical Engineering & Technology, 28(8), 892-892 (2005)
Highly efficient and selective transport of Hg2+ ions through a bulk liquid membrane containing Cyanex 301 as carrier.
Madaeni SS, et al.
Asia-Pacific Journal of Chemical Engineering, 6(4), 631-638 (2011)

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