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125938 Sigma-Aldrich

Dibutyl phosphite

96%

  • CAS Number 1809-19-4

  • Linear Formula (CH3CH2CH2CH2O)2P(O)H

  • Molecular Weight 194.21

  •  Beilstein/REAXYS Number 1099706

  •  MDL number MFCD00066633

  •  eCl@ss 39110212

  •  PubChem Substance ID 24847687

  •  NACRES NA.22

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Properties

Related Categories Building Blocks, Chemical Synthesis, Organic Building Blocks, Organic Phosphates/Phosphites, Phosphorus Compounds More...
Quality Level   100
vapor pressure   <0.1 mmHg ( 20 °C)
assay   96%
impurities   ≤1% butanol
refractive index   n20/D 1.423 (lit.)
bp   118-119 °C/11 mmHg (lit.)
solubility   H2O: soluble 7.3 g/L at 25 °C
density   0.995 g/mL at 25 °C (lit.)
SMILES string   CCCCO[PH](=O)OCCCC
InChI   1S/C8H19O3P/c1-3-5-7-10-12(9)11-8-6-4-2/h12H,3-8H2,1-2H3
InChI key   NFJPGAKRJKLOJK-UHFFFAOYSA-N

Description

General description

Dibutyl phosphite undergoes addition reaction with Schiff bases to yield 1,4-bis[N-methyl(dibutoxyphosphonyl)-1-(2-furyl)]diaminobenzene and 4,4′-bis[N-methyl(dibutoxyphosponyl)-1-phenyl]benzidine. It is antiwear and extreme-pressure additive in industrial gear oils.

Application

Dibutyl phosphite was used as anti-wear agent in bio-based lubricating oil.

Packaging

100, 500 mL in glass bottle

Other Notes

Contains tributyl phosphate

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Target organs 
Respiratory system
RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 3
Flash Point(F) 
244.4 °F - closed cup
Flash Point(C) 
118 °C - closed cup

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Protocols & Articles
Peer-Reviewed Papers
15

References

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