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Key Documents

8.14868

Sigma-Aldrich

Trioctylphosphinoxide

for synthesis

Synonym(s):

Trioctylphosphinoxide

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About This Item

Linear Formula:
(C8H17)3PO
CAS Number:
78-50-2
Molecular Weight:
386.63
MDL number:
MFCD00002083
UNSPSC Code:
12352119
EC Index Number:
201-121-3

Assay

≥98.0% (GC)

form

crystals

autoignition temp.

270 °C

potency

>10000 mg/kg LD50, oral (Rat)
2830 mg/kg LD50, skin (Rat)

bp

212 °C/39.99 Pa

mp

50-54 °C

transition temp

flash point 252 °C

density

0.88 g/cm3 at 25 °C

storage temp.

2-30°C

InChI

1S/C24H51OP/c1-4-7-10-13-16-19-22-26(25,23-20-17-14-11-8-5-2)24-21-18-15-12-9-6-3/h4-24H2,1-3H3

InChI key

ZMBHCYHQLYEYDV-UHFFFAOYSA-N

Analysis Note

Assay (GC, area%): ≥ 98.0 % (a/a)
Melting range (lower value): ≥ 50 °C
Melting range (upper value): ≤ 55 °C
Water (K. F.): ≤ 0.50 %
Acid value: ≤ 3
Identity (IR): passes test

Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H315 - H318 - H412

Hazard Classifications

Aquatic Chronic 3 - Eye Dam. 1 - Skin Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(C)

230 °C - closed cup

Certificates of Analysis (COA)

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