NO LEAI: 89-32 PMHA PYRA PYROMMELITIC Dianhydride
Faatomuaga puupuu
Pyromellitic dianhydride (pmda), o oloa mama o paepae o nai lo tioata samasama samasama. Faʻaalia i le Most le ea o le a vave ona faʻamalieina ai le ea ma le hydrolyzed i Pyromellic Acad.Dissols i le Eterus Syody, Acloretal i isi ore o loʻo i ai le Eteru, Chloroform i le Eterus. Tele faʻaaogaina o le mea leaga mo polyminide, masocrosslinlining sooupu mo le gaosiga o le Epoxy carring sooupu ma le polyester resid.
Pyromellitic acid (pma), ua lauiloa foi o le 1,2,4,5-benzenetratratrackid, paepae i le gaosiga o matatagofie .
| Aitema | Pmda | Pma |
| Mama wt% | 99.5% | 99% |
| Reandibrate Acetone ppm | 1500 | / |
| Liusuavai manatu | 284 ~ 288 | / |
| Lanu | Paepae i samasama | Lanu pa'epa'e |
| Free Acid WT% | 0.5 | / |
| Tele le vaega | I luga o le tagata faatau manaoga | I luga o le tagata faatau manaoga |
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