Skip to Content
MilliporeSigma
All Photos(3)

Key Documents

View All Documentation

125938

Sigma-Aldrich

Dibutyl phosphite

96%

Synonym(s):

Butyl phosphite, Butyl phosphonate, Di-n-butyl hydrogen phosphite, Di-n-butyl phosphite, Dibutoxyphosphine oxide, Dibutyl hydrogen phosphite, Dibutyl phosphonate

Sign Into View Organizational & Contract Pricing

Select a Size

100 ML
$49.40
500 ML
$128.25

$49.40

List Price$52.00Save 5%
Web-Only Promotion

Available to ship onMay 01, 2025Details

Request a Bulk Order
All Photos(3)

Select a Size

Change View
100 ML
$49.40
500 ML
$128.25

About This Item

Linear Formula:
(CH3CH2CH2CH2O)2P(O)H
CAS Number:
1809-19-4
Molecular Weight:
194.21
Beilstein/REAXYS Number:
1099706
MDL number:
MFCD00066633
UNSPSC Code:
12352100
eCl@ss:
39110212
PubChem Substance ID:
24847687
NACRES:
NA.22

$49.40

List Price$52.00Save 5%
Web-Only Promotion

Available to ship onMay 01, 2025Details

Request a Bulk Order

vapor pressure

<0.1 mmHg ( 20 °C)

Quality Level

100

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

Looking for similar products? Visit Product Comparison Guide

Related Categories

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[1]. It is antiwear and extreme-pressure additive in industrial gear oils[2].

Application

Dibutyl phosphite was used as anti-wear agent in bio-based lubricating oil[3].

Other Notes

Contains tributyl phosphate

pictograms

Health hazardExclamation mark
GHS08,GHS07

signalword

Warning

Hazard Classifications

Aquatic Chronic 3 - Carc. 2 - Eye Irrit. 2 - Skin Irrit. 2

Storage Class

10 - Combustible liquids

wgk_germany

WGK 3

flash_point_f

244.4 °F - closed cup

flash_point_c

118 °C - closed cup

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKCD7654
06518PC
11108MQ
04004DX
08510MW

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Industrial gear oil-a study of the interaction of antiwear and extreme-pressure additives.
Fang X, et al.
Tribology International, 26(6), 395-398 (1993)
Addition products of dibutyl phosphite to schiff bases.
Kraicheva I.
Phosph. Sulfur Relat. Elem., 134(1), 287-294 (1998)
Bio-Lubricants Development: The Potential Use of Boron-Containing Additives.
Dicky D and Dyah SP.
Proceeding of International Conference on Chemical and Material Engineering (2012)

Questions

Reviews

No rating value

Active Filters

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service