Cas ko si: 89-32-7 PMDA Pyromellitic dianhydride
Ifihan kukuru
Pyromellitic dianhydride (PMDA), awọn ọja mimọ jẹ awọn kirisita ofeefee funfun tabi die-die. Ti o farahan si afẹfẹ tutu yoo yara gba ọrinrin lati afẹfẹ ati hydrolyzed sinu Pyromellitic Acid.Dissolved ni dimethyl sulfoxide, dimethylformamide, acetone ati awọn nkan ti o nfo Organic miiran, insoluble ni ether, chloroformand benzene. Ti a lo ni akọkọ bi ohun elo aise fun polyimide, ati oluranlowo agbelebu fun iṣelọpọ aṣoju imularada iposii ati iparun resita polyester.
Pyromellitic acid (PMA), ti a tun mọ ni 1,2,4,5-benzenetetracarboxylicacid, funfun si yellowish powdery crystal, ti wa ni lilo akọkọ ninu iṣelọpọ ti polyimide, octyl pyromelliate, ati bẹbẹ lọ, jẹ ipilẹ akọkọ fun iṣelọpọ ti matting curing oluranlowo.
| Nkan | PMDA | PMA |
| Mimọ wt% | 99.5% | 99% |
| Acetone PPM ti o ku | 1500 | / |
| Ojuami yo | 284-288 | / |
| Àwọ̀ | Funfun to yellowish | Funfun |
| Acid Ọfẹ wt% | 0.5 | / |
| Iwọn patiku | Lori ibeere onibara | Lori ibeere onibara |
Pls kan si wa lati gba COA ati MSDS. O ṣeun.
