8.18604

Tributyl phosphate

for synthesis

• Synonym(s): TBP, TBPA
• Linear Formula: (CH₃(CH₂)₃O)₃PO
• CAS Number: 126-73-8
• Molecular Weight: 266.31
• Beilstein: 1710584
• MDL number: MFCD00009436
• UNSPSC Code: 12352108
• EC Index Number: 204-800-2
• NACRES: NA.22

Properties

• vapor density: 9.2 (vs air)
• Quality Level: 200
• vapor pressure: 27 mmHg ( 178 °C); 7.3 mmHg ( 150 °C)
• Assay: ≥99.0% (GC)
• form: liquid
• autoignition temp.: 770 °F
• potency: 1550 mg/kg LD₅₀, oral (Rat); >3100 mg/kg LD₅₀, skin (Rabbit)
• refractive index: n20/D 1.424 (lit.)
• bp: 180-183 °C/22 mmHg (lit.)
• mp: −79 °C (lit.)
• transition temp: flash point 146 °C
• solubility: 6 g/L
• density: 0.979 g/mL at 25 °C (lit.)
• storage temp.: 2-30°C
• SMILES string: CCCCOP(=O)(OCCCC)OCCCC
• InChI: 1S/C12H27O4P/c1-4-7-10-14-17(13,15-11-8-5-2)16-12-9-6-3/h4-12H2,1-3H3
• InChI key: STCOOQWBFONSKY-UHFFFAOYSA-N

Description

Application

• Spontaneous Surface Convection and Extraction (Stripping) Rate in Systems with Tributyl Phosphate and Di(2-ethylhexyl) Hydrogen Phosphate.: This study investigates the spontaneous surface convection and extraction rates in systems involving tributyl phosphate (TBP) and di(2-ethylhexyl) hydrogen phosphate. The findings are crucial for improving the efficiency of chemical separations and extractions in analytical chemistry (Kizim and Golubina, 2020).


• The effect of radiolysis and thermally stimulated acid hydrolysis on tributyl phosphate and its solutions in ISOPAR-M.: This research explores the effects of radiolysis and thermally stimulated acid hydrolysis on TBP and its solutions in ISOPAR-M. Understanding these effects is essential for ensuring the stability and safety of TBP in various industrial applications, particularly in nuclear fuel reprocessing (Serenko et al., 2022).


• Protective Effects in the Radiolysis of Acidified Hydrocarbon Solutions of Tributyl Phosphate.: This paper examines the protective effects in the radiolysis of acidified hydrocarbon solutions of TBP. The study provides insights into mitigating the degradation of TBP under radiation, which is significant for its application in the nuclear industry (Serenko et al., 2022).


• Radicals from tributyl phosphate decomposition: a combined electron paramagnetic resonance spectroscopic and computational chemistry investigation.: Utilizing electron paramagnetic resonance (EPR) spectroscopy and computational chemistry, this study investigates the radicals formed from TBP decomposition. The results enhance the understanding of TBP′s stability and decomposition pathways under various conditions (Sosulin et al., 2023).


• Kinetics and mechanism of Eu(III) transfer in tributyl phosphate microdroplet/HNO3 aqueous solution system revealed by fluorescence microspectroscopy.: This research employs fluorescence microspectroscopy to reveal the kinetics and mechanism of Europium (III) transfer in a TBP microdroplet/HNO3 system. The findings contribute to the development of more efficient separation processes in analytical and nuclear chemistry (Miyagawa et al., 2022).

Analysis Note

Assay (GC, area%): ≥ 99.0 % (a/a)
Density (d 20 °C/ 4 °C): 0.976 - 0.978
Identity (IR): passes test

Safety Information

• Pictograms: GHS07,GHS08
• Signal Word: Warning
• Hazard Statements: H302 - H315 - H351 - H412
• Precautionary Statements: P201 - P202 - P273 - P301 + P312 - P302 + P352 - P308 + P313
• Hazard Classifications: Acute Tox. 4 Oral - Aquatic Chronic 3 - Carc. 2 - Skin Irrit. 2
• Storage Class Code: 10 - Combustible liquids
• WGK: WGK 2
• Flash Point(F): 294.8 °F
• Flash Point(C): 146 °C