Product

3,6-Dichlorophthalic anhydride

CAS No.：4466-59-5

Other grades of this product :

3,6-Dichlorophthalic anhydride Basic information

Product Name:	3,6-Dichlorophthalic anhydride
Synonyms:	1,3-Isobenzofurandione, 4,7-dichloro-;3,6-DICHLOROPHTHALIC ANHYDRIDE;4,7-dichloroisobenzofuran-1,3-dione;3,6-DICHLOROPHTHALIC ANHYDRIDE ---WHITE POWDER, 98%---;4,7-Dichloro-1,3-isobenzofurandione;4,7-dichloro-2-benzofuran-1,3-dione;4,7-dichloroisobenzofuran-1,3-quinone;4,7-dichloro-1,3-dihydro-2-benzofuran-1,3-dione
CAS:	4466-59-5
MF:	C8H2Cl2O3
MW:	217.01
EINECS:	224-733-2
Product Categories:	Anhydride Monomers;Monomers;Polymer Science
Mol File:	4466-59-5.mol

3,6-Dichlorophthalic anhydride Chemical Properties

Melting point	188-190 °C(lit.)
Boiling point	339.1°C (rough estimate)
density	1.5974 (estimate)
storage temp.	under inert gas (nitrogen or Argon) at 2-8°C
BRN	164697
CAS DataBase Reference	4466-59-5(CAS DataBase Reference)
NIST Chemistry Reference	3,6-Dichloro-phthalic anhydride(4466-59-5)

Safety Information

Hazard Codes	Xi
Risk Statements	36/37/38
Safety Statements	26-36
WGK Germany	3
F	10-21

MSDS Information

Provider	Language
SigmaAldrich	English

3,6-Dichlorophthalic anhydride Usage And Synthesis

Chemical Properties	off-white to white powder
Purification Methods	Boil the anhydride in xylene (allowing any vapours which would contain H2O to be removed, e.g. Dean and Stark trap), which causes any acid present to dehydrate to the anhydride, and cool. Recrystallise it from xylene [Villiger Chem Ber 42 3539 1909, Fedoorow Izv Akad Nauk SSSR Otd Khim Nauk 397 1948, Chem Abstr 1585 1948]. [Beilstein 17/11 V 260.]

3,6-Dichlorophthalic anhydride Preparation Products And Raw materials

Preparation Products

4,5-DICHLOROPHTHALIC ANHYDRIDE-->dipotassium 3,6-dichloro-2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate

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