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ChemicalBook--->CAS DataBase List--->89-20-3

89-20-3

89-20-3 Structure

89-20-3 Structure
IdentificationMore
[Name]

4-Chlorophthalic acid
[CAS]

89-20-3
[Synonyms]

4-CHLOROPHTHALIC ACID
P-CHLOROPHTHALIC ACID
4-Chloro-1,2-benzenedicarboxylic acid
4-chloro-o-phthalic acid
[EINECS(EC#)]

201-886-3
[Molecular Formula]

C8H5ClO4
[MDL Number]

MFCD00044755
[Molecular Weight]

200.58
[MOL File]

89-20-3.mol
Chemical PropertiesBack Directory
[Melting point ]

157 °C
[Boiling point ]

399.5±27.0 °C(Predicted)
[density ]

1.586±0.06 g/cm3(Predicted)
[storage temp. ]

Sealed in dry,Room Temperature
[pka]

2.88±0.10(Predicted)
[CAS DataBase Reference]

89-20-3(CAS DataBase Reference)
[EPA Substance Registry System]

89-20-3(EPA Substance)
Safety DataBack Directory
[Symbol(GHS) ]


GHS07
[Signal word ]

Warning
[Hazard statements ]

H302-H315-H319-H335
[Precautionary statements ]

P261-P305+P351+P338
Hazard InformationBack Directory
[Description]

4-Chlorophthalic acid is converted into biphenyltetracarboxylic acid by dehalogenation and quantitative reaction, and this compound is useful in industry as a raw material for, for example, heat-resistant resins and resin plasticizers. A known method for producing 4-chlorophthalic acid is, for example, a method of chlorinating phthalic acid in an aqueous medium in the presence of caustic alkali. A common method is to use a caustic alkali aqueous solution in which chlorine is dissolved as a bed solution. Chlorine gas is supplied to react.
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