2,2'-[Oxybis(methylen)]bis[2-ethylpropan-1,3-diol]

Bezeichnung:2,2'-[Oxybis(methylen)]bis[2-ethylpropan-1,3-diol]

CAS-Nr23235-61-2

Englisch Name:Di(trimethylol propane)

CBNumberCB2187026

SummenformelC12H26O5

Molgewicht250.33

MOL-Datei23235-61-2.mol

Synonyma

2,2'-[Oxybis(methylen)]bis[2-ethylpropan-1,3-diol]

2,2'-[Oxybis(methylen)]bis[2-ethylpropan-1,3-diol] physikalisch-chemischer Eigenschaften

Schmelzpunkt	108-111 °C(lit.)
Siedepunkt	215 °C4 mm Hg(lit.)
Dichte	1.0187 (rough estimate)
Dampfdruck	0Pa at 25℃
Brechungsindex	1.4560 (estimate)
Löslichkeit	soluble in Methanol
Aggregatzustand	powder to crystal
pka	13.90±0.10(Predicted)
Farbe	White to Almost white
Wasserlöslichkeit	21g/L at 20℃
BRN	1860782
LogP	0.88 at 25℃
EPA chemische Informationen	1,3-Propanediol, 2,2'-[oxybis(methylene)]bis[2-ethyl- (23235-61-2)

Sicherheit

S-Sätze:	22-24/25
WGK Germany	3
HS Code	29094990

Gefahreninformationscode (GHS)

Di(trimethylol propane) Chemische Eigenschaften,Einsatz,Produktion Methoden

S-Sätze Betriebsanweisung:
S22:Staub nicht einatmen.
S24/25:Berührung mit den Augen und der Haut vermeiden.
Beschreibung
Di(trimethylol propane), Di-TMP, 2,2-[oxybis(methylene)]-bis(2-ethyl)-1,3-propanediol is a colorless and crystalline substance (mp 112 – 114 ℃), only slightly soluble in water at ambient temperature (2.6 g/100 g at 25 ℃).It is a byproduct of 2-ethyl-2-hydroxymethyl-1,3-propanediol (TMP) production and can be isolated from the residue of the TMP distillation step. Newer investigations show that ditrimethylolpropane can be prepared in high yield and selectivity by the reaction of TMP, formaldehyde, and 2-ethylacrolein.
Verwenden
Di(trimethylolpropane) can be used for the synthesis of lipase catalyzed hyperbranched polymers. It can also be used in the formation of biodegradable polymers for drug delivery applications.
Application
Di-trimethylolpropane is mainly used for production of acrylic monomers and oligomers for radiation-curable coatings and inks, including lithography, ink jet, and flexography inks. Di-TMP tetraacrylate has a very high reactivity, low skin irritation, and gives coatings with good scratch and chemical resistance, hence it also find uses in hard coats for electronics. Di-TMP is used as costabilizer in some lead-free PVC stabilizers based on calcium – zinc. Minor uses are in coating resins and synthetic lubricants.
Synthesis Reference(s)
Canadian Journal of Chemistry, 53, p. 1103, 1975 DOI: 10.1139/v75-154
Allgemeine Beschreibung
Di(trimethylolpropane) is a monomeric unit with primary hydroxyl groups, that can be used as a tetrafunctional core molecule.
Flammability and Explosibility
Not classified

2,2'-[Oxybis(methylen)]bis[2-ethylpropan-1,3-diol] Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

23235-61-2, Di(trimethylol propane) Verwandte Suche:

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