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Sigma-Aldrich

Tributylhexadecylphosphonium bromide

97%

Synonym(s):

Hexadecyltributylphosphonium bromide, TBHDPB

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About This Item

Linear Formula:
CH3(CH2)15P+[(CH2)3CH3]3Br-
CAS Number:
14937-45-2
Molecular Weight:
507.65
Beilstein:
4167404
EC Number:
239-014-9
MDL number:
MFCD00011775
UNSPSC Code:
12352001
PubChem Substance ID:
24856693
NACRES:
NA.22

Assay

97%

form

solid

mp

56-58 °C (lit.)

SMILES string

[Br-].CCCCCCCCCCCCCCCC[P+](CCCC)(CCCC)CCCC

InChI

1S/C28H60P.BrH/c1-5-9-13-14-15-16-17-18-19-20-21-22-23-24-28-29(25-10-6-2,26-11-7-3)27-12-8-4;/h5-28H2,1-4H3;1H/q+1;/p-1

InChI key

RYVBINGWVJJDPU-UHFFFAOYSA-M

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General description

Tributylhexadecylphosphonium bromide (Tri-n-butylhexadecylphosphonium Bromid) has a long hydrocarbon chain attached to the phosphorus atom. It is commonly used as a phase-transfer catalyst in various chemical reactions. In addition, it is also used as a cationic surfactant.

Application

Tributylhexadecylphosphonium bromide can be used as a phase transfer catalyst in the alkaline hydrolysis of PET (polyethylene terephthalate).

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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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A shrinking core model for the alkaline hydrolysis of PET assisted by tributylhexadecylphosphonium bromide
L'opez-Fonseca R, et al.
Chemical Engineering Journal, 146(2), 287-294 (2009)
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Quantification of poly (ethylene terephthalate) micro-and nanoparticle contaminants in marine sediments and other environmental matrices
Castelvetro V, et al.
Journal of Hazardous Materials, 385, 121517-121517 (2020)
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Microplastics are ubiquitous pollutants in marine and freshwater bodies. Poly(ethylene terephthalate) microfibers (PMFs) are among the main primary microplastics (as-produced polymer microparticles). Released in large amounts in laundry wastewaters, PMFs end up in freshwater and marine sediments due to their
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