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Merck
CN

90820

Tributyl phosphate

puriss., ≥99.0% (GC)

Synonym(s):

TBP, TBPA

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About This Item

Linear Formula:
(CH3(CH2)3O)3PO
CAS Number:
126-73-8
Molecular Weight:
266.31
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
329769952
EC Number:
204-800-2
Beilstein/REAXYS Number:
1710584
MDL number:
MFCD00009436
Assay:
≥99.0% (GC)
Form:
liquid

Key Documents

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InChI key

STCOOQWBFONSKY-UHFFFAOYSA-N

InChI

1S/C12H27O4P/c1-4-7-10-14-17(13,15-11-8-5-2)16-12-9-6-3/h4-12H2,1-3H3

SMILES string

CCCCOP(=O)(OCCCC)OCCCC

vapor density

9.2 (vs air)

vapor pressure

27 mmHg ( 178 °C), 7.3 mmHg ( 150 °C)

grade

puriss.

assay

≥99.0% (GC)

form

liquid

autoignition temp.

770 °F

Quality Level

200

bp

180-183 °C/22 mmHg (lit.)

mp

−79 °C (lit.)

density

0.979 g/mL at 25 °C (lit.)

functional group

phosphate

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General description

Tributyl phosphate (TBP) is an organophosphorus compound. TBP is a strong Lewis base and interacts with acids. It is used as a solvent for rare earth extraction and the nuclear fuel cycle. Additionally, TBP is used as a plasticizer for cellulose esters, lacquers, plastics, and vinyl resins

Application

Tributyl phosphate is used as:
  • An extractant for monocarboxylic acids(formic, acetic, and propionic) from an aqueous medium.
  • An additive to enhance the performance of dye-sensitized solar cells (DSSCs).
  • A solvent in combination with ionic liquid[1-butyl-3-methyl imidazolium tetrafluoroborate] for the extraction of phenol and chlorophenols.

pictograms

Health hazardExclamation mark
GHS08,GHS07

signalword

Warning

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 3 - Carc. 2 - Skin Irrit. 2

Storage Class

10 - Combustible liquids

wgk

WGK 2

flash_point_f

293.0 °F - closed cup

flash_point_c

145 °C - closed cup

ppe

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

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Certificates of Analysis (COA)

Lot/Batch Number
BCCN7038
BCCN3872
BCCL7074
BCCM5825
BCCK3442

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Detailed investigation of lactic acid extraction with tributylphosphate dissolved in dodecane
Labbaci A, et al.
Journal of Chemical and Engineering Data, 55(1), 228-233 (2010)
Enhanced photovoltaic properties of modified redox electrolyte in dye-sensitized solar cells using tributyl phosphate as additive
Afrooz M and Dehghani H
Journal of Power Sources, 262, 140-146 (2014)
Extraction of phenol and chlorophenols using ionic liquid [Bmim]+[BF4]- dissolved in tributyl phosphate
Brinda Lakshmi A, et al.
Clean: Soil, Air, Water, 41(4), 349-355 (2013)
Reactive extraction of monocarboxylic acids (formic, acetic, and propionic) using tributyl phosphate in green solvents (cyclopentyl methyl ether and 2-methyltetrahydrofuran
Tu?rk FN, et al.
Journal of Chemical and Engineering Data, 66(1), 130-137 (2020)
Xi-Zhou Hu et al.
Journal of chromatography. A, 1217(45), 7010-7016 (2010-10-05)
A novel molecular complex-based dispersive liquid-liquid microextraction (DLLME) method was established via hydrogen bond interaction between the extractant and the analytes. In this approach, tri-n-butylphosphate (TBP), a Lewis base, was directly used, instead of the traditional water-immiscible organic solvents, as
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