Maleic anhydride/CAS:108-31-6
Kufotokozera Kwachidule:
Dzina la Mankhwala: Maleic anhydride
CAS:108-31-6
MF:C4H2O3
MW:98.06
KAYAMBIDWE:
Maleic Anhydride (MAN) ndi chinthu chachilengedwe chokhala ndi formula ya mankhwala C4H203. Ndi asidi anhydride ya maleic acid ndipo mu mkhalidwe wake woyera ndi chinthu cholimba chopanda mtundu kapena choyera chokhala ndi fungo la acrid. Maleic anhydride ndi molekyulu yodabwitsa kwambiri chifukwa ili ndi mitundu iwiri ya ntchito zamakemikolo zomwe zimapangitsa kuti ikhale yothandiza kwambiri popanga mankhwala ndi kugwiritsa ntchito.
Maleic Anhydride ndi mankhwala ogwiritsidwa ntchito m'mafakitale osiyanasiyana a mankhwala. Amagwiritsidwa ntchito kwambiri popanga ma resins a polyester osaturated (UPR).
Ma resin amenewa amagwiritsidwa ntchito m'mafakitale opangidwa ndi galasi komanso osapangidwa ndi magalasi. Ntchito za UPR zimaphatikizapo ntchito zosiyanasiyana m'mafakitale omanga, a m'madzi komanso a magalimoto.
zofunikira
| Chinthu | Kufotokozera |
| Malo osungunuka | 51-56 °C (lit.) |
| Malo otentha | 200 °C (mwachangu) |
| Kuchulukana | 1.48 |
| Kuchuluka kwa zinthu zambiri | 700-800kg/m3 |
| Kuchuluka kwa nthunzi | 3.4 (motsutsana ndi mpweya) |
| Kupanikizika kwa nthunzi | 0.16 mm Hg (20 °C) |
| Chizindikiro cha refractive | 1.4688 (chiyerekezo) |
| Kusungunuka | Chloroform (Pang'ono), Ethyl Acetate (Pang'ono) |
| Mtundu | Choyera |
| pH | 0.8 (550g/l, H2O, 20℃) Hydrolysis |
Kagwiritsidwe Ntchito
Maleic Anhydride ndi mankhwala opangidwa ndi heterocyclic omwe amagwiritsidwa ntchito popanga ma resins a polyester osakhuta. Ali ndi ntchito zina zambiri; amagwiritsidwa ntchito mu ma tenside opangidwa, mankhwala ophera tizilombo, mankhwala ophera udzu ndi fungicides.
Maleic anhydride imagwiritsidwa ntchito mu Diels-Alder syntheses (monga dienophile), kupanga ma resins amtundu wa alkyd, zinthu zopaka utoto, mankhwala, mankhwala a zaulimi (maleic hydrazide, malathion), mu copolymerization reactions.
Kulongedza ndi Kutumiza
25KG/Chikwama kapena malinga ndi zosowa za makasitomala.
Ndi katundu wamba ndipo amatha kutumizidwa kudzera m'nyanja ndi mlengalenga
Sungani ndi kusunga
Nthawi yosungiramo zinthu: Miyezi 24 kuyambira tsiku lopangidwa m'maphukusi oyambirira osatsegulidwa, osungidwa pamalo ozizira komanso ouma, kutali ndi dzuwa, madzi.
Nyumba yosungiramo zinthu zopumira mpweya, Youma pang'ono, Yosiyana ndi ma oxidants, ma acid.
