phthalic anhydride

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Chemical Name:phthalic anhydride
CAS.NO:85-44-9
Synonyms:phthalic anhydride
1,3-DIHYDRO-IMIDAZOL-2-ONE
1,3-Isobenzofurandione
2-hydroxyimidazole
1,3-dihydroimidazolone
 
Physical and Chemical Properties:
Density 1.4±0.1 g/cm3
Boiling Point 284 ºC
Melting Point 129-132 ºC
Molecular Formula C8H4O3
Molecular Weight 148.116
Flash Point 152 ºC
Exact Mass 148.016037
PSA 43.37000
LogP 1.60
Vapour density 5.1 (vs air)
Vapour Pressure 0.0±0.6 mmHg at 25°C
Index of Refraction 1.613
 
Specification:
Appearance:White flake or crystalline powder
Melting color:≤20 APHA
Heating color:≤50 APHA
Sulphuric acid color index:≤40 APHA
Solidificationg point:≥130.5ºC
Assay:≥99.5%
Free acid:≤0.2%
 
Packing:25 kg/drum, can also be packaged according to customer requirements
Storage:Store in a cool, ventilated place
Application:Intermediate of Folpet(CAS:133-07-3)、Phosmet(CAS:732-11-6) and Bentazone(CAS:25057-89-0).

phthalic anhydride


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