4-Chlorophthalic anhydride
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4-Chlorophthalic anhydride
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CAS No:
118-45-6
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Formula:
C8H3ClO3
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Chemical Name:
4-Chlorophthalic anhydride
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Synonyms:
1,3-Isobenzofurandione,5-chloro-;Phthalic anhydride,4-chloro-;5-Chloro-1,3-isobenzofurandione;4-Chlorophthalic anhydride;p-Chlorophthalic anhydride;4-Chlorophthalic acid anhydride;5-Chloro-2-benzofuran-1,3-dione;5-Chloroisobenzofuran-1,3-dione
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CAS No:
4-Chlorophthalic anhydride Basic Attributes
182.56
182.56
204-251-9
BPI93D0O61
DTXSID30151993
2932999099
Characteristics
43.4
1.9
white crystal powder
1.594±0.06 g/cm3(Predicted)
98 °C @ Solvent: Benzene, Ligroine
286-290 °C
142.4ºC
1.626
0.00116mmHg at 25°C
Safety Information
R36/37/38
26-36/37/39
P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P310, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501
H315
|Danger|H315 (57.14%): Causes skin irritation [Warning Skin corrosion/irritation]|P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P310, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, and P501|Aggregated GHS information provided by 7 companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
4-Chlorophthalic anhydride Use and Manufacturing
237.3 g (1.3 mol) of chlorophthalic anhydride obtained in the step (1) and 100 g (0.5 mol)4, 4`-diaminodiphenyl ether was put into 2000gIn ethylene glycol carbonate, Stir and evenly disperse and mixHeat the reaction system to 190 C, Pumping to a negative pressure of -0.05MPa, The reaction was continuously stirred for 10 hours, and then suction filtration was performed.The filtrate is recycled and recycled.The filter cake is bis (substituted phthalimide) crude 308.8g, The crude product yield was 96.7%.Put the crude product into boiling water and stir it.After boiling, Removal of impurities on the surface of the product and inside the particles, After suction filtration, 291.8 g of a bis(chlorophthalimide) product having an aromatic ether structure was obtained.Product yield is 91.4%;By high performance liquid chromatography, The purity is 99.5%.
4-chlorophthalic anhydride is an important monomer synthesis of polyimide and polyimide is considered to be the highest tolerance has been industrialized in the polymer and the shape and chemical stability of other materials can not like the outburst strength, wear resistance and extreme temperatures, excellent, has been widely used in aviation, aerospace, microelectronics and atom to the field of high technology. 4- of 4-chlorophthalic anhydride is mainly used in the synthesis of diphenyl ethe
Computed Properties
Molecular Weight:182.56
XLogP3:1.9
Hydrogen Bond Acceptor Count:3
Exact Mass:181.9770716
Monoisotopic Mass:181.9770716
Topological Polar Surface Area:43.4
Heavy Atom Count:12
Complexity:239
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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