Trioctylphosphinoxid

Bezeichnung:Trioctylphosphinoxid

CAS-Nr78-50-2

Englisch Name:Trioctylphosphine oxide

CBNumberCB3268225

SummenformelC24H51OP

Molgewicht386.63

MOL-Datei78-50-2.mol

Synonyma

Trioctylphosphinoxid

Trioctylphosphinoxid physikalisch-chemischer Eigenschaften

Schmelzpunkt	50-52 °C(lit.)
Siedepunkt	201-202 °C2 mm Hg(lit.)
Dichte	0,88 g/cm³
Dampfdruck	0.004Pa at 50℃
Flammpunkt	>230 °F
storage temp.	Store below +30°C.
Löslichkeit	<1g/l
Aggregatzustand	Crystalline Powder, Crystals or Flakes
Farbe	White to slightly yellow
Wasserlöslichkeit	Insoluble
BRN	1796648
Stabilität	Stable. Incompatible with strong oxidizing agents.
LogP	9.54
CAS Datenbank	78-50-2(CAS DataBase Reference)
EPA chemische Informationen	Phosphine oxide, trioctyl- (78-50-2)

Sicherheit

Kennzeichnung gefährlicher	Xi,Hazard
R-Sätze:	38-41-50/53-34
S-Sätze:	26-36/39-39-61-60-45-36/37/39
RIDADR	3261
WGK Germany	2
RTECS-Nr.	SZ1662500
Selbstentzündungstemperatur	270 °C
TSCA	Yes
PackingGroup	II
HS Code	29310095
HS Code	32019090
Toxizität	LD50 orally in Rabbit: > 10000 mg/kg LD50 dermal Rat 2830 mg/kg

Gefahreninformationscode (GHS)

Trioctylphosphine oxide Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R38:Reizt die Haut.
R41:Gefahr ernster Augenschäden.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36/39:Bei der Arbeit geeignete Schutzkleidung und Schutzbrille/Gesichtsschutz tragen.
S39:Schutzbrille/Gesichtsschutz tragen.
Chemische Eigenschaften
white crystalline powder
Verwenden
Catalyst in:
- Preparation of tetradentate planar-chiral hydroxy-substituted ferrocenecarboxaldimine Schiff base ligands
- Reactions of allyl esters with hydrosilanes
- Asymmetric cyanosilylation of aldehydes
- Preparation of chlorothiol formates from thiols and phosgene
Verwenden
Tri-n-octylphosphine oxide is a solvent used in the extraction of metals, especially uranium, zirconium and hafnium. It is also used as an auxiliary reagent in the solvent extraction of metals. It is also used to extract hydrogen bonding organic compounds. Further, it is useful as a capping ligand for the production of quantum dots, such as those consisting of cadmium selenide.
Verwenden
Trioctylphosphine oxide (TOPO) is most commonly used as the solvent due to its high boiling point and chemical stability, and its ability to prevent particle aggregation via coordination to the NP surface. trioctylphosphine oxide is a frequently used surfactant, starts to decompose at around 425°C.
The industrial applications of trioctylphosphine oxide, make use of its complexing powers with metals and with hydrogen donor organic compounds. Commercial uses as a solvent extraction reagent are in the recovery of uranium from wet process phosphoric acid and in the recovery of byproduct acetic acid and furfural generated during sulphite wood pulping.
TOPO is a widely used chemical compound in nanocrystal synthesis, for the removal of heavy metals, and the removal of toxins in waste water. TOPO is often used as a ligand stabilizer for colloids in traditional thermal decomposition synthetic techniques.
trioctylphosphine oxide became a nearly irreplaceable solvent (mp 51-52°C) for high-temperature preparation of various type of nanocomposites. TOPO has a very high boiling point (411°C) which is an important prerequisite for the homogeneous nucleation and good crystallinity of the nanoparticles.
Allgemeine Beschreibung
Visit our Sensor Applications portal to learn more.
Flammability and Explosibility
Non flammable
läuterung methode
Mason, McCarty and Peppard [J Inorg Nuclear Chem 24 967 1962] stirred a 0.1M solution in *benzene with an equal volume of 6M HCl at 40o in a sealed flask for 48hours, then washed the *benzene solution successively with water (twice), 5% aqueous Na2CO3 (three times) and water (six times). The *benzene and water were then evaporated under reduced pressure at room temperature. Zingaro and White [J Inorg Nucl Chem 12 315 1960] treated a pet ether solution with aqueous KMnO4 (to oxidise any phosphinous acids to phosphinic acids), then with sodium oxalate, H2SO4 and HCl (to remove any manganese compounds). The pet ether solution was slurried with activated alumina (to remove phosphinic acids), filtered, evaporated and the residue was recrystallised from pet ether or cyclohexane at -20o. It can also be recrystallised from EtOH. [Beilstein 4 IV 3466.]

Trioctylphosphinoxid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

78-50-2, Trioctylphosphine oxide Verwandte Suche:

Send Inquriy