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Sigma-Aldrich

Diisooctylthiophosphinic acid

technical, ~85% (T)

Synonym(s):

Bis(2,4,4-trimethylpentyl)thiophosphinic acid

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About This Item

Empirical Formula (Hill Notation):
C16H35OPS
CAS Number:
132767-86-3
Molecular Weight:
306.49
MDL number:
MFCD00216700
UNSPSC Code:
12352100
PubChem Substance ID:
57649821
NACRES:
NA.22

grade

technical

Assay

~85% (T)

form

liquid

refractive index

n20/D 1.48

density

0.93 g/mL at 20 °C (lit.)

SMILES string

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

InChI

1S/C16H35OPS/c1-13(9-15(3,4)5)11-18(17,19)12-14(2)10-16(6,7)8/h13-14H,9-12H2,1-8H3,(H,17,19)

InChI key

KUYLHALFMPOMKK-UHFFFAOYSA-N

General description

Diisooctylthiophosphinic acid (Bis(2,4,4-trimethylpentyl)thiophosphinic acid) is a hygroscopic liquid. Its physical properties (refractive index and specific gravity) have been reported.
Diisooctylthiophosphinic acid is an application specific reagent.

Application

Complexing agent for the extraction of transition metals
Diisooctylthiophosphinic acid is suitable for use in the colorimetric determination of airborne lead. It may be used as chelating agent for supercritical fluid extraction (SFE) of metals, for subsequent ICP-MS analyses of mercury, cadmium and lead in sediment.

Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H314

Hazard Classifications

Skin Corr. 1B

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

204.8 °F - closed cup

Flash Point(C)

96 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Ash M and Ash I.
Handbook of solvents., 254-254 (2003)
Raja Norimie Raja Sulaiman et al.
Journal of hazardous materials, 340, 77-84 (2017-07-18)
The discharge of electroplating waste containing nickel ions has led to environmental issues owing to the toxicity problem mainly to the aquatic organisms and humans. Liquid-liquid extraction offers a great potential treatment for nickel removal with several advantages of simple
Supercritical Fluid Extraction of Metals Using Bis (2, 4, 4-trimethyl-pentyl) monothiophosphinic Acid as Chelating Agent for Subsequent ICP-MS Analyses of Mercury, Cadmium and Lead in Sediment.
Roa EC, et al.
E-Journal of Chemistry, 8(3), 1114-1119 (2011)
Pornpimol Kongtip et al.
The Southeast Asian journal of tropical medicine and public health, 41(6), 1500-1511 (2011-02-19)
We developed a method to analyze airborne lead concentrations in the field. It was a modification of the colorimetric method using the reaction between 4(2-pyridylazo)-resorcinol (PAR) and lead with cyanex302 in an acid medium to reduce interfering metals. The lead

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