I-ACETYL ACETONE(2,4 PENTANEDIONE)

I-acetylacetone,eyaziwa nangokuthi i-2, 4-pentadione, iyinhlanganisela yemvelo, ifomula yamakhemikhali C5H8O2, uketshezi olungenambala ukuya kokuphuzi kancane, oluncibilika kancane emanzini, kanye ne-ethanol, i-ether, i-chloroform, i-acetone, i-acetic acid nezinye izincibilikisi eziphilayo ezixubene, ikakhulukazi. esetshenziswa njenge-solvent, i-ejenti yokukhipha, ingasetshenziswa futhi ekulungiseleleni izithasiselo zikaphethiloli, izithambisi, izibulala-zinambuzane zesikhunta, izibulala-zinambuzane, odayi, njll.

Izakhiwo:I-acetone iwuketshezi oluvuthayo olungenambala noma oluphuzi kancane.Iphuzu elibilisa liyi-135-137 ° C, i-flash point ingu-34 ° C, futhi iphuzu lokuncibilika liyi--23 ° C. Ubuningi obuhlobene ngu-0.976, izinga lesaphulelo ngu-N20d1.4512.I-acetone iyancibilika ku-8g wamanzi, futhi ixutshwa ne-ethanol, i-benzene, i-chloroform, i-ether, i-acetone, ne-methampitic acid, bese ibola ibe i-acetone ne-acetic acid esixazululweni se-alkali.Uma kuziwa kumkhuhlane ophezulu, umlilo omncane kanye ne-oxidant enamandla, kulula ukubangela ukuvutha.Ayizinzile emanzini, i-hydrolyzed kalula ibe i-acetic acid ne-acetone.

Okumaphakathi kwe-organic synthesis:

I-acetylacetone iyindawo ebalulekile ephakathi ku-organic synthesis, esetshenziswa kabanzi kwezemithi, iphunga, izibulala-zinambuzane nezinye izimboni.

I-acetone iyinto ebalulekile yokusetshenziswa embonini yezemithi, njengokuhlanganiswa kwe-4,6 - i-dimethylpyrimidine derivatives.Iphinde isetshenziswe njenge-solvent ye-cellulose acetate, i-desiccant yamapende nama-varnish, kanye ne-reagent ebalulekile yokuhlaziya.

Ngenxa yobukhona befomu le-enol, i-acetylacetone ingakha ama-chelates ane-cobalt (Ⅱ), i-cobalt (Ⅲ), i-beryllium, i-aluminium, i-chromium, insimbi (Ⅱ), ithusi, i-nickel, i-palladium, i-zinc, i-indium, i-tin, i-zirconium, i-magnesium, i-manganese, i-scandium kanye ne-thorium namanye ama-ion ensimbi, angasetshenziswa njengezithasiselo kumafutha kaphethiloli namafutha okugcoba.

I-Chemicalbook ingasetshenziswa njenge-ejenti yokuhlanza izinsimbi kuma-micropores nge-chelation yayo ngezinsimbi.Isetshenziswa njenge-catalyst, i-resin crosslinking agent, i-resin yokwelapha i-accelerator;I-resin, izithasiselo zenjoloba;Isetshenziselwa ukusabela kwe-hydroxylation, ukusabela kwe-hydrogenation, ukusabela kwe-isomerization, i-molecular unsaturated ketone synthesis kanye ne-carbon olefin polymerization ephansi kanye ne-copolymerization;Isetshenziswa njenge-solvent ephilayo, esetshenziselwa i-cellulose acetate, uyinki, umbala;I-ejenti yokomisa upende;Izinto zokusetshenziswa zokulungiselela ama-insecticide nama-fungicides, izidakamizwa zezilwane ezilwa nesifo sohudo kanye nezithasiselo zokudla;Ingilazi ye-infrared reflection, ifilimu ekhanyayo ekhanyayo (usawoti we-indium), ifilimu ye-superconducting (i-indium salt) eyenza i-ejenti;I-acetylacetone metal complex inombala okhethekile (usawoti wethusi oluhlaza, usawoti wensimbi obomvu, usawoti we-chromium onsomi) futhi ongancibiliki emanzini;Isetshenziswa njengezinto zokusetshenziswa kwemithi;Izinto zokwenziwa ze-Organic.

Izicelo Ze-ACETYL ACETONE:

1. I-Pentanedione, eyaziwa nangokuthi i-acetylacetone, iyisibulala-sikhunta i-pyraclostrobin, i-azoxystrobin kanye ne-herbicide rimsulfuron.

2. Ingasetshenziswa njengezinto ezingavuthiwe kanye ne-organic intermediates kwezemithi, futhi ingasetshenziswa njengezincibilikisi.

3. Isetshenziswa njenge-reagent yokuhlaziya kanye ne-ejenti yokukhipha i-aluminium ku-tungsten ne-molybdenum.

4. I-Acetylacetone iyingxenye ephakathi kwe-organic synthesis, futhi yakha i-amino-4,6-dimethylpyrimidine ne-guanidine, into ebalulekile yemithi eluhlaza.Ingasetshenziswa njenge-solvent ye-cellulose acetate, isithasiselo sikaphethiloli kanye nezinto zokugcoba, i-desiccant yopende ne-varnish, isibulala-fungi, nesibulala-zinambuzane.I-acetylacetone ingasetshenziswa futhi njenge-catalyst yokuqhekeka kwe-petroleum, i-hydrogenation kanye ne-carbonylation reactions, kanye ne-accelerator ye-oxidation ye-oxygen.Ingasetshenziselwa ukususa ama-oxide ensimbi ezintweni eziqinile nezimbotshana nokwelapha ama-catalyst e-polypropylene.Emazweni aseYurophu naseMelika, ngaphezu kuka-50% asetshenziswa emfuyweni antidiarrheal izidakamizwa kanye izithasiselo feed.

5. Ngaphandle kwezakhiwo ezivamile zotshwala nama-ketones, iphinde ibonise umbala obomvu omnyama nge-ferric chloride futhi yakha ama-chelates anosawoti amaningi ensimbi.Nge-acetic anhydride noma i-acetyl chloride ne-acetone condensation, noma ngokusabela kwe-acetone ne-ketene etholiwe.I-Chemicalbook isetshenziswa njenge-extractant yensimbi ukuhlukanisa ama-ion a-trivalent nama-tetravalent, okomisa upende noyinki, izibulala-zinambuzane, izibulala-zinambuzane, ama-fungicides, izinyibilikisi zama-polymers aphezulu, ama-reagents ekunqumeni i-thallium, insimbi, i-fluorine, kanye ne-organic synthesis intermediates.

6. Transition metal chelators.Ukunqunywa kwe-colorimetric yensimbi ne-fluorine, nokunqunywa kwe-thallium phambi kwe-carbon disulfide.

7. Inkomba ye-Fe(III) ye-complexometric titration;esetshenziselwa ukuguqulwa kwamaqembu e-guanidine (afana ne-Arg) namaqembu e-amino kumaprotheni.

8. Isetshenziswa njenge-ejenti yenguquko yensimbi ye-chelating;isetshenziselwa ukunqunywa kwe-colorimetric yensimbi ne-fluorine, nokunqunywa kwe-thallium lapho kukhona i-carbon disulfide.

9. Inkomba ye-iron (III) i-complexometric titration.Isetshenziselwa ukuguqula amaqembu e-guanidine kumaprotheni nasemaqenjini amino kumaprotheni.

Izimo zesitoreji:

1. Hlala kude ne-Minghuo kanye ne-oxidant eqinile, vala futhi ulondoloze.

2. Isonge ngesikhwama sepulasitiki noma emgqonyeni wensimbi;Impahla ejwayelekile yokupakishwa:200kg/isigubhu.Ingashi,ungashi,ingangeni umswakama, igcinwe endaweni yokugcina impahla eyingozi.Ukugcinwa nokuthuthwa ngokwemithetho yamakhemikhali ayingozi.