Dimethylisophthalat

Bezeichnung:Dimethylisophthalat

CAS-Nr1459-93-4

Englisch Name:Dimethyl isophthalate

CBNumberCB7265116

SummenformelC10H10O4

Molgewicht194.18

MOL-Datei1459-93-4.mol

Synonyma

Dimethylisophthalat

Dimethylisophthalat physikalisch-chemischer Eigenschaften

Schmelzpunkt	64-68 °C (lit.)
Siedepunkt	124 °C (12.0016 mmHg)
Dichte	1.1477
Dampfdichte	6.8 (vs air)
Dampfdruck	93.7 mm Hg ( 208 °C)
Brechungsindex	1.5168 (estimate)
Flammpunkt	138 °C
storage temp.	Sealed in dry,Room Temperature
Löslichkeit	0.29g/l insoluble
Aggregatzustand	Flakes or Crystalline Powder
pka	-5.32[at 20 ℃]
Farbe	White to off-white
Wasserlöslichkeit	Insoluble
BRN	1912251
LogP	2.1 at 20℃
CAS Datenbank	1459-93-4(CAS DataBase Reference)
NIST chemische Informationen	1,3-Benzenedicarboxylic acid dimethyl ester(1459-93-4)
EPA chemische Informationen	Dimethyl isophthalate (1459-93-4)

Sicherheit

Kennzeichnung gefährlicher	Xi
R-Sätze:	36
S-Sätze:	26-36
WGK Germany	3
RTECS-Nr.	NT2540000
TSCA	Yes
HS Code	29173980
Giftige Stoffe Daten	1459-93-4(Hazardous Substances Data)

Gefahreninformationscode (GHS)

Dimethyl isophthalate Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R36:Reizt die Augen.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
Chemische Eigenschaften
white to off-white flakes or crystalline powder. Soluble in methanol, ethanol, insoluble in water, used in organic synthesis, as a fixed plate for gas chromatography.
Verwenden
Dimethyl isophthalate is used as a plasticizer, to make polyester resins, as a polyacrylate resin comonomer, and as a perfume fixative. It may be used as an internal standard for determining, dimethyl-tere-phthalate (DMtP), dimethyl-phthalate (DMP), diethyl phthalate (DEP) in soil samples and biosolids using gas-chromatography coupled to mass spectrometry (GC-MS). It may also be used as an analytical reference standard for the quantification of the analyte in complex matrices including plastics, cosmetics, and environmental samples using gas chromatography coupled to positive chemical ionization mass spectrometry (GC-CIMS).
Application
Dimethyl isophthalate was used in the synthesis of:
polybutylene isophthalate end-capped with N-ethyl-pentadecafluorooctanamide.
poly(ethylene terephthalate-co-isophthalate-co-5-tert-butylisophthalate) terpolyesters.
Polyesters containing sulfonate groups were prepared from dimethyl isophthalate, BD and 5SIPNa by the usual two-stage crystallization.
synthetische
Dimethyl isophthalate is synthesized by esterifying isophthalic acid with methanol: Isophthalic acid (1.66gm, 0.1mmol) in super dry methanol (60mL) containing 2-3 drops of concentrated H2SO4 (AR) was refluxed till it dissolved. Then, the reaction mixture was poured onto ice cold water, immediately a solid started separating from the clear solution. To this a solution of sodium bicarbonate was added till the effervescence seized. The ester thus obtained was filtered and washed with water for several times (M.P: 64-67°C).
Synthesis Reference(s)
Tetrahedron Letters, 33, p. 1959, 1992 DOI: 10.1016/0040-4039(92)88113-J
Allgemeine Beschreibung
Dimethyl isophthalate is dimethyl phthalate ester based plasticizer.
Flammability and Explosibility
Non flammable

Dimethyl isophthalate Upstream-Materialien And Downstream Produkte

Dimethylisophthalat Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

1459-93-4, Dimethyl isophthalate Verwandte Suche:

Send Inquriy