90820

Tributyl phosphate

puriss., ≥99.0% (GC)

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

Properties

• 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.)

Description

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.

Safety Information

• pictograms: GHS08,GHS07
• signalword: Warning
• hcodes: H302,H315,H351,H412
• pcodes: P202 - P264 - P273 - P301 + P312 - P302 + P352 - P308 + P313
• Hazard Classifications: Acute Tox. 4 Oral - Aquatic Chronic 3 - Carc. 2 - Skin Irrit. 2
• Storage Class: 10 - Combustible liquids
• wgk_germany: 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