Tributyl phosphate (TBP) is a strong polar solvent used in the production of solutions of synthetic resins and natural rubber. In both cellulose based plastics and synthetic resins, TBP is used as a flame-retarding plasticizer.
TBP is employed as a pasting agent for pigment pastes.
Due to the limited influence of temperature on the viscosity of TBP, it also serves as an important component in the manufacture of hydraulic fluids for aircraft.
TBP; Phosphoric acid tributyl ester; Butyl phosphate; Celluphos 4; Disflamoll TB; Tri-n-butyl phosphate; Tributoxyphosphine oxide; Butyl phosphate, ((BuO)3PO); Butyl phosphate,
tri-; Tributilfosfato; Tributyle (phosphate de); Tributylfosfaat; Tributylphosphat; Tributylfosfat; Tributylphsophate; Tributyl ester of phosphoric acid; Kronitex TBP; Phosphoric
acid tri-n-butyl ester; Syn-O-Ad 8412; NSC 8484; tributhyl phosphate
Tributyl phosphate
CAS Number
126-73-8
Tributyl phosphate (TBP) is a strong polar solvent used in the production of solutions of synthetic resins and natural rubber. In both cellulose based plastics and synthetic resins, TBP is used as a flame-retarding plasticizer.
TBP is employed as a pasting agent for pigment pastes.
Due to the limited influence of temperature on the viscosity of TBP, it also serves as an important component in the manufacture of hydraulic fluids for aircraft.
As a very strong wetting agent, TBP is used in the textile industry and in the field of adhesives. As a neutral extractant it is able to extract both acids and metal cations.
stable
very good solvent
Areas of Applications
Catalysis and Chemicals Processing
Chemical synthesis
Polymers
Manufacturing of plastics
Manufacturing of rubber, latex
Hydraulic oils
Dyestuffs, pigments and optical brighteners
Synonyms :
TBP
CAS Number :
000126-73-8
Chemical formula C12H27O4P
Molar mass 266.318 g·mol−1
Appearance Colorless to pale-yellow liquid
Density 0.9727 g/mL
Melting point −80 °C (−112 °F; 193 K)
Boiling point 289 °C (552 °F; 562 K)
Solubility in water 0.4 g/L[2]
Vapor pressure 0.004 mmHg (25°C)[1]
Flash point 146.1 °C (295.0 °F; 419.2 K)
Lethal dose or concentration (LD, LC):
LD50 (median dose) 1189 mg/kg (mouse, oral)
3000 mg/kg (rat, oral)[3]
LC50 (median concentration) 227 ppm (cat, 4–5 h)
123 ppm (rat, 6 h)
117 ppm (rat)
2529 ppm (rat, 1 h)
Tributyl phosphate, known commonly as TBP, is an organophosphorus compound with the chemical formula (CH3CH2CH2CH2O)3PO. This colourless, odorless liquid finds some applications as an extractant and a plasticizer. It is an ester of phosphoric acid with n-butanol.
Production
Tributyl phosphate is manufactured by reaction of phosphoryl chloride with n-butanol.
POCl3 + 3 C4H9OH → PO(OC4H9)3 + 3 HCl
Production is estimated at 3,000–5,000 tonnes worldwide.
Use
TBP is a solvent and plasticizer for cellulose esters such as nitrocellulose and cellulose acetate. It forms stable hydrophobic complexes with some metals; these complexes are soluble
in organic solvents as well as supercritical CO2. The major uses of TBP in industry are as a component of aircraft hydraulic fluid, brake fluid, and as a solvent for extraction
and purification of rare-earth metals.
TBP finds its use as a solvent in inks, synthetic resins, gums, adhesives (namely for veneer plywood), and herbicide and fungicide concentrates.
As it has no odour, it is used as an anti-foaming agent in detergent solutions, and in various emulsions, paints, and adhesives. It is also found as a de-foamer in ethylene glycol-borax
antifreeze solutions.[citation needed] In oil-based lubricants addition of TBP increases the oil film strength. It is used also in mercerizing liquids, where it improves their wetting
properties. It can be used as a heat-exchange medium. TBP is used in some consumer products such as herbicides and water-thinned paints and tinting bases
Butyl phosphate
Butyl phosphate, ((BuO)3PO)
Butyl phosphate, tri-
Celluphos 4
Disflamoll TB
MCS 2495
Phosphoric acid, tributyl ester
TBP
Tri-n-butyl phosphate
Tributoxyphosphine oxide
Tributyl phosphate
Tributyle (phosphate de)
Translated names
fosfato de tributilo (es)
Fosforan(V) tributylu (pl)
ortofosforan(V) tributylu (pl)
phosphate de tributyle (fr)
tributil fosfat (sl)
tributil-fosfat (hr)
tributil-foszfát (hu)
tributilfosfat (ro)
tributilfosfatas (lt)
tributilfosfato (it)
tributilfosfāts (lv)
tributyl-fosfát (cs)
tributylfosfaat (nl)
tributylfosfat (no)
tributylphosphat (da)
Tributyylifosfaatti (fi)
Tributüülfosfaat (et)
φωσφορικός τριβουτυλεστέρας (el)
трибутил фосфат (bg)
CAS names
Phosphoric acid tributyl ester
IUPAC names
tetrossofosfato (V) di tri-1-butile
Tributyl phosphate (TBP)
BAYSOLVEX TBP
Entschäumer T
126-73-8 [RN]
1710584 [Beilstein]
203-777-6 [EINECS]
204-800-2 [EINECS]
butyl phosphate
MFCD00009436 [MDL number]
n-butyl phosphate
Phosphate de tributyle [French] [ACD/IUPAC Name]
Phosphoric acid tributyl ester
PHOSPHORIC ACID TRI-N-BUTYL ESTER
Phosphoric acid, tributyl ester [ACD/Index Name]
Phosphoric acid, tri-n-butyl ester
Phosphorsäuretributylester [German]
TBP
TC7700000
Tributilfosfato
Tribütilfosfat
Tribütil fosfat
tributilfosfat
tributil fosfat
Tri-n-butyl phosphate
tri butil fosfat
tri bütil fosfat
tribütilfosfat
Tributilfosfato [Italian]
Tributyl phosphate [ACD/IUPAC Name] [Wiki]
Tributyle (phosphate de) [French]
Tributylfosfaat
Tributylfosfaat [Dutch]
Tributylphosphat [German] [ACD/IUPAC Name]
Tributylphsophate
tri-n-butyl phosphate
Tri-n-butyl-phosphat [German]
Трибутилфосфат [Russian]
[126-73-8]
15158-85-7 [RN]
19824-61-4 [RN]
4-01-00-01531 [Beilstein]
4-01-00-01531 (Beilstein Handbook Reference) [Beilstein]
52933-01-4 [RN]
61196-26-7 [RN]
80094-39-9 [RN]
Butyl phosphate, tri-
Celluphos 4
Disflamoll TB
EINECS 204-800-2
Kronitex TBP
Tributilfosfato [Italian]
tributoxy-hydroxyphosphanium
tributoxy-hydroxy-phosphanium
tributoxy-hydroxyphosphonium
tributoxy-hydroxy-phosphonium
Tributoxyphosphine oxide
Tributyl ester of phosphoric acid
Tributyl phosphate 10 ?g/mL in Cyclohexane
Tributyl phosphate solution
Tributyle (phosphate de) [French]
Tributyle(phosphate de)
Tributylfosfaat [Dutch]
Tributylfosfat [Czech]
Tributylfosfat [Czech]
Tributylphosphat [German]
TRIBUTYLPHOSPHATE [Wiki]
Tri-n-butylphosphate
BUTYL PHOSPHATE
PHOSPHATE DE TRI-N-BUTYLE
Phosphate de tributyle
Phosphate de tributyle normal
PHOSPHORIC ACID TRIBUTYL ESTER
PHOSPHORIC ACID, TRIBUTYL ESTER
TRI-N-BUTYL PHOSPHATE
TRI-NORMAL-BUTYL PHOSPHATE
TRIBUTYL ESTER PHOSPHATE
Tributyl phosphate
TRIBUTYL PHOSPHATE (NORMAL-)