Cas: 89-32-7 Pmda Pyromellitic Dianhydride
Cov lus qhia luv luv
Pyromellitic dianhydride (pmda), cov khoom ntshiab yog xim dawb orslightly daj muaju. Raug rau cov cua noo yuav ua rau muaj huab cua sai sai ntawm huab cua thiab cov tshuaj lom neeg sab nrauv, Insoluble hauv ether, chloroformand benzene. Tsuas yog siv los ua cov khoom siv raw rau polyimide, Andcrosslinking tus neeg sawv cev rau kev tsim cov khoom ntawm Epoxy tus neeg sawv cev thiab polyester resinction.
Pyromellitic acid (PMA), tseem muaj li 1,2,4,5-benzentetetracarracarracaryryry, thiab lwm yam. Cov.
| Yam | Pmda | Paj Ntawv |
| Purity wt% | 99.5% | 99% |
| Residual acetone ppm | 1500 | / |
| Melting taw tes | 284 ~ 288 | / |
| Xim | Dawb rau daj | Xim dawb |
| Dawb acid wt% | 0.5 | / |
| Qhov loj me me | Ntawm Cov Neeg Siv Khoom Siv | Ntawm Cov Neeg Siv Khoom Siv |
Pls tiv tauj peb kom tau txais COA thiab MSDS. Tsaug.
Sau koj cov lus ntawm no thiab xa mus rau peb
