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Tris(2-butoxyethyl) phosphate

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Tris(2-butoxyethyl) phosphate

EINECS 201-122-9
CAS No. 78-51-3 Density 1.027 g/cm3
PSA 82.26000 LogP 4.59440
Solubility soluble in water Melting Point -70 ºC
Formula C18H39O7P Boiling Point 413.9 ºC at 760 mmHg
Molecular Weight 398.477 Flash Point 241.5 ºC
Transport Information N/A Appearance viscous colourless or slightly yellow liquid
Safety 26-37/39 Risk Codes 20/21/22-36/37/38
Molecular Structure Molecular Structure of 78-51-3 (Tris(2-butoxyethyl) phosphate) Hazard Symbols HarmfulXn

Ethanol,2-butoxy-, phosphate (3:1) (7CI,8CI,9CI);Phosphoric acid, tris(2-butoxyethyl)ester (6CI);2-Butoxyethanol phosphate;Amgard TBEP;Hostaphat B310;Ethanol, 2-butoxy-,1,1',1''-phosphate;Phosflex T-BEP;Tris(2-n-butoxyethyl) phosphate;tris-2-Butoxyethyl phosphate;Tri(butoxyethyl)phosphate;TBEP;Tris(2-butoxyethyl) phosphate(TBEP);

Article Data 4

Tris(2-butoxyethyl) phosphate Synthetic route




tris(2-butoxyethyl) phosphate

With magnesium chloride; trichlorophosphate at 50 - 80℃; for 5h; Reagent/catalyst; Temperature; Large scale;98%
With quinoclamine; hydroquinone; trichlorophosphate
With trichlorophosphate at 45 - 50℃;

tris(2-butoxyethyl) phosphate




With sodium metabisulfite; (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; manganese; tetrabutylammomium bromide In dimethyl sulfoxide at 120℃; for 15h; Inert atmosphere;48%

Tris(2-butoxyethyl) phosphate Chemical Properties

IUPAC Name: Tris(2-butoxyethyl) phosphate
Molecular Formula: C18H39O7P
Molecular Weight: 398.47 g/mol
InChI: InChI=1/C18H39O7P/c1-4-7-10-20-13-16-23-26(19,24-17-14-21-11-8-5-2)25-18-15-22-12-9-6-3/h4-18H2,1-3H3
EINECS: 201-122-9
Classification Code: Skin / Eye Irritant
Product Categories: Organics; Functional Materials; Phosphates (Plasticizer); Plasticizer; Organic Building Blocks; Organic Phosphates / Phosphites; Phosphorus Compounds
Water Solubility: Soluble
Stability: Stable. Combustible. Incompatible with strong oxidizing agents.
Index of Refraction: 1.442 
Molar Refractivity: 102.78 cm3 
Molar Volume: 387.9 cm3 
Surface Tension: 34.2 dyne/cm 
Density: 1.027 g/cm
Flash Point: 241.5 °C 
Enthalpy of Vaporization: 64.09 kJ/mol 
Boiling Point: 413.9 °C at 760 mmHg
Melting Point: -70 °C
Vapour Pressure of Tris(2-butoxyethyl) phosphate (CAS NO.78-51-3): 1.11E-06 mmHg at 25 °C

Tris(2-butoxyethyl) phosphate Uses

 Tris(2-butoxyethyl) phosphate (CAS NO.78-51-3) is used as primary plasticizer for most resins & elastomers, floor finishes & waxes, flame retarding agent.

Tris(2-butoxyethyl) phosphate Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
chicken LD50 oral > 5gm/kg (5000mg/kg)   Toxicology and Industrial Health. Vol. 6, Pg. 415, 1990.
chicken LD50 oral > 5gm/kg (5000mg/kg)   Toxicology and Industrial Health. Vol. 6, Pg. 415, 1990.
guinea pig LC inhalation > 600mg/m3/6H (600mg/m3)   National Technical Information Service. Vol. OTS0537047,
guinea pig LD50 oral 3gm/kg (3000mg/kg)   "Practical Toxicology of Plastics," Lefaux, R., Cleveland, OH, Chemical Rubber Co., 1968Vol. -, Pg. 336, 1968.
mouse LC inhalation > 600mg/m3/6H (600mg/m3)   National Technical Information Service. Vol. OTS0537047,
mouse LD50 intravenous 180mg/kg (180mg/kg)   U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. Vol. NX#00391,
rabbit LD50 skin > 16mL/kg (16mL/kg)   Toxicology and Applied Pharmacology. Vol. 28, Pg. 313, 1974.
rat LC inhalation > 600mg/m3/6H (600mg/m3)   National Technical Information Service. Vol. OTS0537047,
rat LD50 oral 3gm/kg (3000mg/kg)   Raw Material Data Handbook, Vol.1: Organic Solvents, 1974. Vol. 2, Pg. 93, 1975.

Tris(2-butoxyethyl) phosphate Safety Profile

Hazard Codes: HarmfulXn
Risk Statements: 20/21/22-36/37/38 
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed. 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-37/39 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S37/39:Wear suitable gloves and eye/face protection.
WGK Germany: 1
RTECS of Tris(2-butoxyethyl) phosphate (CAS NO.78-51-3): KJ9800000

Tris(2-butoxyethyl) phosphate Specification

 Tris(2-butoxyethyl) phosphate (CAS NO.78-51-3), its Synonyms are 2-Butoxyethanol, phosphate ; Ethanol, 2-butoxy-, phosphate (3:1) ; Phosphoric acid, tributoxyethyl ester ; Phosphoric acid, tris(2-butoxyethyl) ester ; Tributoxyethyl phosphate ; Tributyl cellosolve phosphate ; Ethanol, 2-butoxy-, 1,1',1''-phosphate . It is viscous colourless or slightly yellow liquid.

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