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

Ụdị kemịkal

Methacrylic acid, nke akpọrọ MAA, bụ ngwakọta organic.Mmiri a na-enweghị agba, viscous bụ acid carboxylic nwere isi na-adịghị mma.Ọ bụ soluble na mmiri ọkụ na miscible na ọtụtụ organic solvents.A na-emepụta Methacrylic acid na ụlọ ọrụ mmepụta ihe n'ọtụtụ buru ibu dị ka ihe mmalite nke esters ya, karịsịa methyl methacrylate (MMA) na poly (methyl methacrylate) (PMMA).Methacrylates nwere ọtụtụ ojiji, ọkachasị n'ichepụta polymer nwere aha azụmaahịa dịka Lucite na Plexiglas.MAA pụtara ndammana na obere ego na mmanụ nke Roman chamomile.

Ngwa

A na-eji Methacrylic acid na-emepụta resins methacrylate na plastik.A na-eji ya dị ka Monomer maka nnukwu resins na polymers, njikọ organic.Ọtụtụ n'ime polymers dabeere na esters nke acid, dị ka methyl, butyl, ma ọ bụ isobutyl esters.A na-eji Methacrylic acid na methacrylate esters akwadebe ọtụtụ polymers [→ Polyacrylamides na Poly(Acrylic Acids), → Polymethacrylates].Poly (methyl methacrylate) bụ polymer bụ isi na ụdị a, ọ na-enye mmiri doro anya, rọba siri ike nke a na-eji n'ụdị mpempe akwụkwọ na glazing, akara, ihe ngosi, na ogwe ọkụ.

Anụ ahụform

Kpochapụmmiri mmiri

Klas Hazard

8

Ndụ nchekwa

Dị ka ahụmịhe anyị si kwuo, enwere ike ịchekwa ngwaahịa ahụ maka ọnwa 12 site na ụbọchị nnyefe ma ọ bụrụ na edobere ya n'ime akpa mkpuchi nke ọma, chebe ya pụọ ​​​​na ọkụ na okpomọkụ ma chekwaa ya na okpomọkụ n'etiti 5 - 30 ° C.

TNjirimara pụrụ iche

Ebe mgbaze

12-16 Celsius C (ọkụ ọkụ)

Ebe esi nri

163 Celsius C (ọkụ)

njupụta

1.015 g/mL na 25 Celsius C (ọkụ)

uzuoku njupụta

> 3 (vs ikuku)

uzuoku mgbali

1 mm Hg (20 Celsius C)

index refractive

n20/D 1.431 (ọkụ)

Fp

170 Celsius F

nchekwa okpomọkụ.

Na-echekwa na +15°C ruo +25°C.