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90820

Sigma-Aldrich

Tributyl phosphate

puriss., ≥99.0% (GC)

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Synonym(s):
TBP, TBPA
Linear Formula:
(CH3(CH2)3O)3PO
CAS Number:
126-73-8
Molecular Weight:
266.31
Beilstein:
1710584
EC Number:
204-800-2
MDL number:
MFCD00009436
UNSPSC Code:
12352100
PubChem Substance ID:
329769952
NACRES:
NA.22

vapor density

9.2 (vs air)

Quality Level

200

vapor pressure

27 mmHg ( 178 °C)
7.3 mmHg ( 150 °C)

grade

puriss.

Assay

≥99.0% (GC)

form

liquid

autoignition temp.

770 °F

refractive index

n20/D 1.424 (lit.)

bp

180-183 °C/22 mmHg (lit.)

mp

−79 °C (lit.)

density

0.979 g/mL at 25 °C (lit.)

SMILES string

CCCCOP(=O)(OCCCC)OCCCC

InChI

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

InChI key

STCOOQWBFONSKY-UHFFFAOYSA-N

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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

Signal Word

Warning

Hazard Statements

H302,H315,H351,H412

Hazard Classifications

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

WGK

WGK 2

Flash Point(F)

closed cup

Flash Point(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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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)
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)
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)
Omar Arous et al.
Journal of hazardous materials, 180(1-3), 493-498 (2010-05-19)
In this work, a development of polymeric inclusion membranes for the cations separation is reported. The membrane was made up of cellulose triacetate (CTA) with a tributyl phosphate (TBP) incorporated into the polymer as metal ions carrier. The transport of
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