Gukemuka mumashanyarazi menshi MMA methyl methacrylate yamazi

Ibisobanuro bigufi:

Methyl methacrylate （MMA）

Methyl methacrylate (MMA) ni ifumbire mvaruganda hamwe na chimique C5H8O2.Nibisukari bitagira ibara, bigashonga gato mumazi, kandi bigashonga mumashanyarazi menshi nka Ethanol.Bikoreshwa cyane nka monomer ya plexiglass, ariko kandi bikoreshwa mugukora ibindi bisigazwa, plastike, ibifuniko, ibifunga, amavuta, ibikoresho bingana kuri ibiti na cork, hamwe nimpapuro zogosha impapuro.

Ohereza imeri kuri twe

Ibicuruzwa birambuye

Ibicuruzwa

Ingingo yerekana: 8 ℃

Imiterere yumubiri nubumashini

Ubucucike: 0,943 g / cm3

Ingingo yo gushonga: -48 ℃

Ingingo yo guteka: 100 ℃

Ingingo yerekana: 8 ℃

Ubushyuhe bukabije: 294 ℃

Umuvuduko w'ingenzi: 3.3MPa

Umuvuduko wumwuka wumuyaga: 3.9kPa （20 ℃）

Igisenge cyo guturika (V / V): 12.5%

Umupaka muto wo guturika (V / V): 2,1%

Gukemura: gushonga gake mumazi, gushonga mumashanyarazi menshi nka Ethanol

Amakuru ya tekiniki

Ingingo	Urwego rwiza	Icyiciro cya mbere	Ibicuruzwa byujuje ibyangombwa
Kugaragara	Ibara ritagira ibara ryamazi, nta mwanda ugaragara
Chroma (Platinum Cobalt) / hazen	≤5	≤10	≤20
Ubucucike (p20) g / cm3	0.942–0.944	0.942–0.946	0.938–0.948
Acide (nka aside methacrylic) mg / kg	≤50	≤100	00300
Ubushuhe mg / kg	00400	00600	00800
Methyl methacrylate w /%	≥99.9	≥99.8	≥99.5
2,4 dimethyl 6-tert-butylphenol mg / kg	—-	—-	—-

Amakuru yuburozi

Uburozi bukabije

LD50 ： 7872mg / kg （kumunwa ku mbeba）

LC50 ： 78000mg / m3 （kunyunyuza imbeba, 4h）

Uburozi bwa Subacute na Chronic

Imbwa zashizemo 11700ppm, umunsi wa 1.5ha, iminsi 8 yose, zishobora gutera impfu, autopsie yerekanye umwijima nimpyiko.

Mutagenicity

Isesengura rya Cytogenetike: lymphocytes yimbeba 2202 mg / L.

Teratogenicity

Guhumeka imbeba ya dose yo hasi cyane (TCLo) 109g / m3 (17min) 6 ~ 15d nyuma yo gutwita byateje imikorere mibi yimikorere ya musculoskeletal.

Abandi

Guhumeka imbeba byibuze byibuze uburozi (TCLo): 109g / kg (bivura 6 ~ 15d yo gutwita), bigatera urusoro kandi bikagira ingaruka kumikorere ya musculoskeletal.

Imenyekanisha ry'ibikorwa: ibikorwa bifunze, gushimangira umwuka. Abakora bagomba guhugura imyitozo idasanzwe kandi bakubahiriza byimazeyo inzira zikorwa. Birasabwa ko abashoramari bambara ibyiyumvo byiyungurura (igice cya masike), indorerwamo z'umutekano w’imiti, imyenda y'akazi irwanya static n'amavuta ya rubber- uturindantoki twirinda. Komeza kure yumuriro nubushyuhe, kandi birabujijwe rwose kunywa kumurimo.Koresha sisitemu n'ibikoresho bitangiza umuyaga. Koresha sisitemu n'ibikoresho byo guhumeka.Irinde imyuka itemba mu kirere cyakazi. Irinde guhura na okiside, acide, base, halogene.