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Tributyl phosphate CAS 126-73-8 TBP

Tributyl phosphate abbreviation TBP, molecular formula C12H27PO4, structural formula (C4H9O)3P=O, colorless and odorless liquid, melting point -80 ℃, boiling point 289 ℃ (decomposition), relative density 0.973 ~ 0.978 (20/4 ℃), refractive index 1.4215 (25 ℃). Stable to light, miscible with many organic solvents, insoluble in water. Produced by n-butanol trichlorophosphate esterification. Tributyl phosphate is a typical neutral complexing extractant. It is widely used in nuclear fuel and metallurgical industries because of its stable nature and resistance to strong acids, strong bases, strong oxidizers and strong radiation. TBP has the largest tonnage of extractant production in the world. It can extract uranium from nitric acid solution and is the most important extraction system in the nuclear fuel industry. Uranium is the first metal extracted and purified by extraction method in the industry, the United States, Britain and other countries of uranium purification plant are using TBP extraction system. Because it is soluble with nitrate fiber, acetate fiber, phenolic resin, polymethyl methacrylate resin, etc., it can be used as their plasticizers, so that these products have cold resistance and light resistance. However, compared with other plasticizers, it has a lower boiling point and higher volatility, so its use is limited. In most cases, it can also be used as a solvent for paints and adhesives.TBP is moderately toxic (LD50 is 3 g/kg body weight) and is generally not allowed to be used in products that come into direct contact with food. It is licensed by the U.S. Food and Drug Administration for use as an adhesive in food packaging materials. It has some flame retardancy and can be used as a flame retardant for some resins.


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Model:
126-73-8
Brand:
boss chem
Code:
126-73-8

Product Description

Tributyl phosphate (TBP)

CAS No.126-73-8

Alias: AURORAKA-1641;BUTYLPHOSPHATE;O,O,O-Tributylphosphate;TRIBUTYLPHOSPHATEextrapure;Nitrogen-OxygenfreerChemicalbookadicalpiperidycol;Phosphoricacidtributyl;Tributylphosphate5g[126-73-8];Tributylphosphate10g[126-73-8]

Molecular formula: C12H27O4P

Relative molecular mass: 266.31

Structural formula:

126-73-8

1. Performance and use:

Tributyl phosphate (126-73-8);is an odorless colorless to yellow liquid. The solubility of TBP is only 280 mg/L in water at 25°C. It is soluble in diethyl ether, benzene, carbon disulfide. It can be miscible with ethanol. It is stable, but it is incompatible with strong oxidizing agents.

Tributyl phosphate (TBP,126-73-8) is a trialkyl phosphate that is the tributyl ester of phosphoric acid.

TBP is a toxic organophosphorous compound widely used in many industrial applications, including significant usage in nuclear processing.

TBP is a solvent and plasticizer for cellulose esters such as nitrocellulose and cellulose acetate.

The major uses of TBP in industry are as a component of aircraft hydraulic fluid and as a solvent for extraction and purification of rare earth metals from their ores, such as uranium and plutonium.

TBP is used also in mercerizing liquids, where it improves their wetting properties.

TBP is also used as a heat exchange medium.

TBP is used in some consumer products such as herbicides and water thinned paints and tinting bases.

2. Technical indicators

Tributyl phosphate Basic information
Product Name:	Tributyl phosphate
CAS:	126-73-8
MF:	C12H27O4P
MW:	266.31
EINECS:	204-800-2
Mol File:	126-73-8.mol
Tributyl phosphate Chemical Properties
Melting point	-79 °C
Boiling point	289 °C
density	0.979 g/mL at 25 °C(lit.)
vapor density	9.2 (vs air)
vapor pressure	27 mm Hg ( 178 °C)
refractive index	n20/D 1.424(lit.)
Fp	380 °F
storage temp.	Store below +30°C.
solubility	water: soluble1ml in 165ml water
form	Liquid
color	Clear
Odor	Odorless
Water Solubility	0.6 g/100 mL
Merck	149,618
BRN	1710584
Exposure limits	TLV-TWA 2.18 mg/m3 (0.2 ppm) (ACGIH), 5 mg/m3 (OSHA and NIOSH); IDLH 1300 mg/m3 (120 ppm) (NIOSH).
Stability:	Stable. Combustible. Incompatible with strong oxidizing agents. May be water sensitive.
CAS DataBase Reference	126-73-8(CAS DataBase Reference)

Items	Specifications
Appearance	Colorless or yellowish liquid
Color(APHA)	≤10
Purity	≥99%
Acidity(mgKOH/g)	≤0.1
Water	≤0.1%

3. Usage

As an antifoaming agent.
As a plasticizer for cellulose esters, lacquers, plastics, and vinyl resins.
As a complexing agent in the extraction of heavy metals, especially for the extraction of metal ions from solutions of reactor products in nuclear fuel reprocessing.
As an aircraft hydraulic fluid.

As a heat exchange medium and dielectric.

As a pigment-grinding agent.

4. Packaging and storage

TBP liquid is packaged in plastic barrels, 30kg or 250kg per barrel, which can also be determined according to user needs.

Store in a cool and ventilated place indoors, avoid moisture and exposure, and the storage period is twelve months.

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