Acid Acrylic. meatotino vailaau. talosaga

acid Acrylic - o se tasi o sui aupito faigofie o acids carboxylic monobasic unsaturated. O lona fua e faapea: CH2 = CH-COOH. O se suavai colorless i ai o se manogi maai ma le lelei. Soluble i le vai, chloroform, ava malosi diethyl ma ethanol, agai atili polymerized e fausia acid polyacrylic. I le acid acrylic ei ai isi igoa: etenkarbonovaya acid ma acid propenoic.

Auala e maua ai (po o synthesize) acid acrylic?

1. I le taimi nei, ua tuuina acid acrylic e oxidation ausa vaega o propylene ma le okesene (O2) e molybdenum, bismuth po catalysts cobalt. O se faataitaiga o le tali lenei:

CH2 = CH-CH3 (propylene) + O2 (okesene) = CH2 = CH-COOH (acid acrylic)

2. I le taimi ua tuanai, ua faaaoga tali i le ua tali lea monoxide carbon II (CO), acetylene (SN≡SN) ma le vai (H2O). O le tali vailaau o le a i le taimi lava lea e tasi e faapea:

SN≡SN (acetylene) + CO (monoxide carbon II) + H2O (vai) → CH2 = CH-COOH (acid acrylic).

O le isi faaaogaina o formaldehyde tali ma ketene:

CH2 = F = Le (ketene) + H2C = Le (formaldehyde) → CH2 = CH-COOH (acid propenoic).

3. O lenei e Rohm ma Haas faatupuina etenkarbonovoy tekinolosi tuufaatasia acid faapitoa mai le alu i le kesi.

meatotino vailaau o acid acrylic

Iloiloina i tatou acid E mafai ona masima, esters, anhydrides, amides, chlorides acid, ma isi tuufaatasi. Foi e mafai ona ulu atu i se faaopoopoga tali, o uiga o le carbons ethylene. Vai talafeagai, protonic acids ma tupu le NH3 e le tulafono Markovnikov. I totonu o lenei fausia le pogai suia ai. o loo aofia ai acid Acrylic i le tuufaatasia diene. Foi condensed ma masima aryl diazonium eseese. Ina ua irradiation ultraviolet, o le a fausia ai se acid polyacrylic.

O le faaaogaina o kiloty acrylic

- faaaogaina o se mea e masani ona maua i le gaosia o le a eseese o oloa polymer ma vailaau eseese ma meatotino faaletino (f.t.t., uga ma coatings);

- o loo faaaogaina i le tuuina atu o dispersions aqueous o paints acrylic; lea o le vaega o le talosaga o le a faalagolago o ia paints i luga o le meatotino vailaau o le copolymer - ata mulimuli o le taavale ma le taualuga e vali;

- acid acrylic ma lona pogai o loo faaaogaina e foafoa ai le faaautama o le paʻu ma le aano o le tino e emulsions i paints, o se mea e masani ona maua mo rubbers acrylic ma alava acrylic, adhesives fausia, ma faafefiloi ai; metaakrilovoy esters ma acid acrylic (e masani lava ona faaaogaina ethers, methyl methacrylate ma methyl acrylate) faaaogaina i le tuuina atu o polymers;

- vaega o le o loo faaaogaina acid acrylic i le foafoaina o superabsorbents.

teuina lelei o acid acrylic

Ina ua teuina le mea ina ia mafai ona aloese mai inhibitor polymerization ua faaopoopo - hydroquinone. Ao lei faaaogaina le tatau ona to ifo i acid ma le faaeteete, talu ai o polymerization explosively atinae e mafai ai.

Saogalemu i le faaaogaina

Pe e tatau ona galulue faatasi ma acid acrylic amanaia e oso ai le inoino i le mea e le paʻu ma membranes mucous. Faitotoa acid faasoesa o 0,04 mg / lita. Ina ua uma le fesootaiga ma le membrane mucous o le eyeball, o se tulafono, e mafua ogaoga mu corneal, e mafai ona taitai atu ai i suiga foia (mea ua faaleagaina, e le mafai ona togafitia). e mafai ona mafua ai le puao acid acrylic manavaina i totonu ulu tiga, itaitagofie o le tamaitusi respiratory, ma inumaga tele - le atinae o edema chronic. I nofoaga o loo faia ai galuega ma acid acrylic, e manaomia ai se vaavaaiga e le aunoa o le ea. MPC lenei acid o 5 mg / metr³. tatau ona tausia faiga saogalemu pe afai e galulue faatasi ma isi pogai. E pei o faataitaiga o acrylonitrile.