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Phthalic anhydride 85-44-9 PHA
Name: | Phthalic anhydride |
Alias: | 2,5-Isobenzofurandione; 2-benzofuran-1,3-dione; 2,2'-(oxydicarbonyl)dibenzoic acid; o-Phthalic anhydride |
CAS RN: | 85-44-9 |
EINECS号: | 201-607-5 |
Molecular formula: | C8H4O3 |
Molecular weight: | 148.12 |
InChI: | InChI=1/C16H10O7/c17-13(18)9-5-1-3-7-11(9)15(21)23-16(22)12-8-4-2-6-10(12)14(19)20/h1-8H,(H,17,18)(H,19,20) |
Molecular structure: |
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Density: | 1.484g/cm3 |
Melting point: | 129-132℃ |
Boiling point: | 589.218°C at 760 mmHg |
The primary use of phthalic anhydride is a precursor to phthalate esters, used as plasticizers in vinyl chloride. Phthalate esters are derived from phthalic anhydride by the alcoholysis reaction
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