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Merck
CN

38224

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
NACRES:
NA.22
PubChem Substance ID:
57649821
UNSPSC Code:
12352100
MDL number:
MFCD00216700

Key Documents

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Product Name

Diisooctylthiophosphinic acid, technical, ~85% (T)

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)

SMILES string

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

InChI key

KUYLHALFMPOMKK-UHFFFAOYSA-N

grade

technical

assay

~85% (T)

form

liquid

refractive index

n20/D 1.48

density

0.93 g/mL at 20 °C (lit.)

Quality Level

100

Related Categories

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.

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.

pictograms

Corrosion
GHS05

signalword

Danger

hcodes

H314

Hazard Classifications

Skin Corr. 1B

Storage Class

8A - Combustible corrosive hazardous materials

wgk

WGK 3

flash_point_f

204.8 °F - closed cup

flash_point_c

96 °C - closed cup

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

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Certificates of Analysis (COA)

Lot/Batch Number
WE341545/1

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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)
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
Ash M and Ash I.
Handbook of solvents., 254-254 (2003)
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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