Dibutoxymethane Struktur

1,1'-[Methylenbis(oxy)]dibutan

Bezeichnung:1,1'-[Methylenbis(oxy)]dibutan

CAS-Nr2568-90-3

Englisch Name:Dibutoxymethane

CBNumberCB3346224

SummenformelC9H20O2

Molgewicht160.25

MOL-Datei2568-90-3.mol

Synonyma

1,1'-[Methylenbis(oxy)]dibutan

1,1'-[Methylenbis(oxy)]dibutan physikalisch-chemischer Eigenschaften

Schmelzpunkt	-58.1°C
Siedepunkt	180°C
Dichte	0,84 g/cm³
Dampfdruck	1-1.11hPa at 22.7-25℃
Brechungsindex	n20/D1.406
Flammpunkt	60°C
Aggregatzustand	clear liquid
Farbe	Colorless to Almost colorless
Wasserlöslichkeit	222.5-250mg/L at 20℃
LogP	2.77-4.1 at 20-21.5℃
EPA chemische Informationen	Butane, 1,1'-[methylenebis(oxy)]bis- (2568-90-3)

Sicherheit

R-Sätze:	36/37/38
S-Sätze:	26-36/37/39
RIDADR	3271
WGK Germany	1
HS Code	2911.00.5000
HazardClass	3
PackingGroup	III

Gefahreninformationscode (GHS)

Dibutoxymethane Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
Verwenden
Formaldehyde dibutyl acetal is a halogen-free and less toxic solvent that can be used to solubilize commercial low-density polyethylene (LDPE) samples to analyze molecular weight distribution using gel permeation chromatography (GPC). It can also be used as a reactant to prepare butoxymethyltriphenylphosphonium iodide, which is used for carbon homologation and also as a useful key intermediate in organic synthesis.
synthetische
A flask containing 15 gm (0.5 mole) of paraformaldehyde, 74 gm (1.0 mole) of η-butyl alcohol, and 2.0 gm of anhydrous ferric chloride is refluxed for 10 hr. The lower layer of 3-4 ml of material is discarded and then 50 ml of 10% aqueous sodium carbonate solution is added to remove the ferric chloride as ferric hydroxide. The product is shaken with a mixture of 40 ml of 20% hydrogen peroxide and 5 ml of 10% sodium carbonate solution at 45°C in order to remove any remaining aldehyde. The product is also washed with water, dried, and distilled from excess sodium metal to afford 62 gm (78%).
Synthesis Reference(s)
The Journal of Organic Chemistry, 45, p. 3341, 1980 DOI: 10.1021/jo01304a039
Allgemeine Beschreibung
Formaldehyde dibutyl acetal is an acetal used in the manufacture of synthetic resins, antiseptics, deodorants, and fungicides. It is also used as a fuel additive to increase the octane number of gasoline or the n-cetane number of diesel fuels and reduce smoke and particulate emissions.

Dibutoxymethane Upstream-Materialien And Downstream Produkte

1,1'-[Methylenbis(oxy)]dibutan Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

2568-90-3, Dibutoxymethane Verwandte Suche:

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