1,3-Dihydro-2-benzofuran-1,3-dione
С8H4O3
85-44-9
201-607-5
| # | Parameter | Value |
|---|---|---|
| 1 | Phthalic Anhydride content (purity), %, min | 99,9 |
| 2 | Phthalic Acid content, % | absent |
| 3 | Maleic Anhydride content, %, max | 0,05 |
| 4 | Ash content, %, max | 0,002 |
| 5 | Iron content, %, max | 0,0002 |
| 6 | Crystallization point, °С, min | 130,9 |
| 7 | Melted product’s colour after heating at 250 °С during 90 minutes, Hazen units, max | |
| – At output | 40 | |
| – During guarantee period for flakes & powder | 60 | |
| 8 | Melted product’s colour, Hasen units, max | |
| – At output | 15 | |
| – During guarantee period for flakes & powder | 20 | |
| 9 | Appearance | White flakes & powder or melt |
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