Phthalic Anhydride

Post Date:
Sep 29,2019
Expiry Date:
Mar 27,2020
Detailed Description:
Cas No. :85-44-9 Specs:bag
Phthalic anhydride is formed by phthalic acid molecular through dehydration. O-phthalic anhydride is made from naphthalene and mixed with air through the process of 350~360C vapor phase oxidation catalyzed by vanadium pentoxide,. Phthalic anhydride is in the shape of white scaly or crystalline powder. It is an important organic chemical material and mainly used in the production of plasticizer, alkyd resin, dye, unsaturated resin and some of medicines or pesticides.
CAS Registry Number:
85-44-9
Synonyms:
;2,5-Isobenzofurandione;2-benzofuran-1,3-dione;2,2'-(oxydicarbonyl)dibenzoic acid;o-Phthalic anhydride;
Molecular Formula:
C₈H₄O₃
Molecular Weight:
148.12
Molecular Structure:
Hazard Symbols:
Xn:Harmful;
Risk Codes:
R22:;
R37/38:;
R41:;
R42/43:;
Safety Description:
S22:;
S24/25:;
S26:;
S37/39:;
S46:;

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