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Key Documents

8.21198

Sigma-Aldrich

Triphenylphosphine oxide

for synthesis

Synonym(s):

Triphenylphosphine oxide

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About This Item

Empirical Formula (Hill Notation):
C18H15OP
CAS Number:
791-28-6
Molecular Weight:
278.28
MDL number:
MFCD00002080
UNSPSC Code:
12352119
EC Index Number:
212-338-8

vapor pressure

<1 hPa ( 50 °C)

Quality Level

200

Assay

≥98.0% (HPLC)

autoignition temp.

590 °C

potency

685 mg/kg LD50, oral (Rat)

mp

155-158 °C

transition temp

flash point 180 °C

density

1.2 g/cm3 at 20 °C

bulk density

400‑450 kg/m3

InChI

1S/C18H15OP/c19-20(16-10-4-1-5-11-16,17-12-6-2-7-13-17)18-14-8-3-9-15-18/h1-15H

InChI key

FIQMHBFVRAXMOP-UHFFFAOYSA-N

Analysis Note

Assay (HPLC, area%): ≥ 98.0 % (a/a)
Melting range (lower value): ≥ 155 °C
Melting range (upper value): ≤ 158 °C
Identity (IR): passes test

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302 - H412

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 3

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

356.0 °F

Flash Point(C)

180 °C

Certificates of Analysis (COA)

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