Txiv neej anhydride / CAS: 108-31-6
Kev Piav Qhia Luv:
Lub Npe Khoom: Maleic anhydride
CAS: 108-31-6
MF:C4H2O3
MW:98.06
QAUV:
Maleic Anhydride (MAN) yog ib qho organic compound nrog cov mis tshuaj C4H203. Nws yog cov kua qaub anhydride ntawm maleic acid thiab thaum nws ntshiab nws yog cov khoom dawb tsis muaj xim lossis dawb nrog ntxhiab tsw qab. Maleic anhydride yog ib qho molecule zoo kawg nkaus vim nws muaj ob hom kev ua haujlwm tshuaj lom neeg ua rau nws muaj txiaj ntsig zoo hauv kev tsim tshuaj thiab kev siv.
Maleic Anhydride yog ib qho tshuaj lom neeg ua haujlwm ntau yam nrog kev siv rau ntau qhov chaw ntawm kev lag luam tshuaj lom neeg. Nws qhov kev siv kawg tseem ceeb yog ua cov khoom noj khoom haus hauv kev tsim cov unsaturated polyester resins (UPR).
Cov resins no siv tau rau hauv cov iav-reinforced thiab cov ntawv thov tsis muaj reinforced. UPR kawg siv suav nrog ntau yam kev siv hauv kev tsim kho, marine thiab tsheb lag luam.
cov lus qhia tshwj xeeb
| Khoom | Cov Lus Qhia Tshwj Xeeb |
| Qhov kub yaj | 51-56 °C (lit.) |
| Kub taw tes | 200 ° C (lit.) |
| Qhov Ceev | 1.48 |
| Qhov ceev ntawm cov khoom loj | 700-800kg/m3 |
| Qhov ceev ntawm cov pa dej | 3.4 (piv rau huab cua) |
| Lub zog ua pa | 0.16 hli Hg (20 °C) |
| Cov ntsuas kev cuam tshuam | 1.4688 (kwv yees) |
| Kev yaj tau | Chloroform (Me ntsis), Ethyl Acetate (Me ntsis) |
| Xim | Dawb |
| pH | 0.8 (550g/l, H2O, 20℃) Kev Sib Cais Dej |
Kev Siv
Maleic Anhydride yog heterocyclic compound siv rau hauv kev tsim cov unsaturated polyester resins. Nws muaj ntau yam kev siv lwm yam; nws yog siv rau hauv cov khoom siv hluavtaws, tshuaj tua kab, tshuaj tua kab thiab fungicides.
Maleic anhydride siv rau hauv Diels-Alder syntheses (ua ib tug dienophile), tsim cov alkyd-hom resins, dye intermediates, pharmaceuticals, agricultural chemicals (maleic hydrazide, malathion), nyob rau hauv copolymerization reactions.
Ntim thiab Xa Khoom
25KG / Hnab los yog raws li cov neeg siv khoom xav tau.
Yog cov khoom siv dav dav thiab tuaj yeem xa los ntawm dej hiav txwv thiab huab cua
Khaws cia thiab khaws cia
Lub neej txee: 24 lub hlis txij li hnub tsim khoom hauv cov ntim khoom tsis tau qhib khaws cia rau hauv qhov chaw txias thiab qhuav kom tsis txhob raug tshav ntuj ncaj qha, dej.
Lub tsev rau khoom muaj cua nkag, ziab kom qhuav kub tsawg, Sib cais ntawm cov tshuaj oxidants, cov kua qaub.
