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Tributyl phosphate CAS#126-73-8
CAS Number: 126-73-8
Chemical Formula: C12H27O4P
Synonyms:
Tributyl phosphate 10g [126-73-8]
Tributyl phosphate 5g [126-73-8]
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Appearance: Colorless Liquid
Tributyl phosphate CAS#126-73-8
On decomposition, TBP releases COx, toxic fumes of phosphoric acid, phosphorus oxides, and/or phosphine. TBP is incompatible with strong oxidising agents and alkalis. The major uses of TBP in industry are as a component of aircraft hydraulic fluid and as a solvent for rare earth extraction and purification. Minor uses of TBP include use as a defoamer additive in cement casings for oil wells, an anti-air entrainment additive for coatings and floor finishes, as well as a carrier for fluorescent dyes. The major uses of TBP comprise over 80% of the volume produced.
Tributyl phosphate Chemical Properties |
Melting point | -79 °C (lit.) |
Boiling point | 180-183 °C/22 mmHg (lit.) |
density | 0.979 g/mL at 25 °C (lit.) |
vapor density | 9.2 (vs air) |
vapor pressure | 27 mm Hg ( 178 °C) |
refractive index | n |
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 | 14,9618 |
BRN | 1710584 |
Dielectric constant | 6.5（20℃） |
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. |
InChI | 1S/C12H27O4P/c1-4-7-10-14-17(13,15-11-8-5-2)16-12-9-6-3/h4-12H2,1-3H3 |
InChIKey | STCOOQWBFONSKY-UHFFFAOYSA-N |
SMILES | CCCCOP(=O)(OCCCC)OCCCC |
LogP | 4 at 20℃ |
Surface tension | 27.2mN/m at 298.15K |
CAS DataBase Reference | 126-73-8(CAS DataBase Reference) |
NIST Chemistry Reference | Tri-n-butylphosphate(126-73-8) |
EPA Substance Registry System | Tributyl phosphate (126-73-8) |
Safety Information |
Hazard Codes | Xn,F |
Risk Statements | 22-38-40-62-48/20-36/37/38-11-20/22 |
Safety Statements | 36/37-46-45-36/37/39-16-53 |
OEB | B |
OEL | TWA: 0.2 ppm (2.5 mg/m3) |
RIDADR | UN 1208 3/PG 2 |
WGK Germany | 2 |
RTECS | TC7700000 |
Autoignition Temperature | 770 °F |
TSCA | TSCA listed |
HS Code | 29190010 |
Storage Class | 10 - Combustible liquids |
Hazard Classifications | Acute Tox. 4 Oral |
Hazardous Substances Data | 126-73-8(Hazardous Substances Data) |
Toxicity | LD50 orally in rats: 3.0 g/kg (Smyth, Carpenter) |
IDLA | 30 ppm |
Product Application Of Tributyl phosphate CAS#126-73-8
Tributyl phosphate is used as an antifoaming agent; plasticizer for cellulose esters, lacquers, plastic, and vinyl resins; component in hydraulic fluids for aircraft control systems. |
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