I-Methacrylic acid (2-Methyl-2-propenoic acid)

Izimo zamakhemikhali

I-Methacrylic acid, efushanisiwe i-MAA, iyinhlanganisela yezinto eziphilayo.Lolu ketshezi olungenambala, olunama-viscous luyi-carboxylic acid enephunga elibi elibi.Iyancibilika emanzini afudumele futhi ixubene nezinyibilikisi eziningi eziphilayo.I-Methacrylic acid ikhiqizwa ngokwezimboni ngezinga elikhulu njengesandulela se-esters yayo, ikakhulukazi i-methyl methacrylate (MMA) kanye ne-poly(methyl methacrylate) (PMMA).Ama-methacrylates anokusetshenziswa okuningi, okuphawuleka kakhulu ekwenzeni ama-polymer anamagama okuhweba afana ne-Lucite ne-Plexiglas.I-MAA yenzeka ngokwemvelo ngamanani amancane emafutheni we-Roman chamomile.

Izinhlelo zokusebenza

I-Methacrylic acid isetshenziswa ekwenzeni ama-methacrylate resins namapulasitiki.Isetshenziswa njenge-Monomer kuma-resin amavolumu amakhulu nama-polymers, i-organic synthesis.Ama-polymers amaningi asekelwe kuma-ester we-asidi, njenge-methyl, i-butyl, noma i-isobutyl esters.I-Methacrylic acid ne-methacrylate esters isetshenziselwa ukulungisa ama-polymer anhlobonhlobo [→ I-Polyacrylamides ne-Poly(Acrylic Acids), → I-Polymethacrylates].I-Poly(methyl methacrylate) iyi-polymer eyinhloko kulesi sigaba, futhi inikeza amapulasitiki ahlanzekile ngamanzi, aqinile asetshenziswa njengeshidi ekucwebezeni, izimpawu, izibonisi, namaphaneli okukhanyisa.

Okomzimbafi-orm

Kucaceuketshezi

I-Hazard Class

8

Impilo yeshelufu

Ngokuhlangenwe nakho kwethu, umkhiqizo ungagcinwa izinyanga eziyi-12 kusukela osukwini lokulethwa uma ugcinwe ezitsheni ezivalwe ngokuqinile, uvikelekile ekukhanyeni nasekushiseni futhi ugcinwe emazingeni okushisa aphakathi kuka-5 - 30°C.

Tizakhiwo ezivamile

Iphoyinti lokuncibilika

12-16 °C (okhanyisiwe)

Iphuzu elibilayo

163 °C (okhanyisiwe)

ukuminyana

1.015 g/mL ku-25 °C (okhanyisiwe)

ukuminyana komhwamuko

>3 (vs air)

umfutho womhwamuko

1 mm Hg ( 20 °C)

inkomba ye-refractive

n20/D 1.431(lit.)

Fp

170 °F

izinga lokushisa lokugcina.

Gcina ku +15°C kuya +25°C.