KumiswaIsayensi

Methyl utshwala

Methyl utshwala (noma methanol) uketshezi kungekho nto enemibala emihle. Kuyinto miscible kalula ngamanzi kumakhemikhali awuketshezi ahlukahlukene kokuba njalo organic. Ukunambitheka kanye nephunga methyl utshwala (CH3OH ifomula) has cishe mehluko kusukela ETHYL, kodwa ezinobuthi futhi kungabangela ubuthi ezinzima. Methanol has a ongaphakeme ukuvala abacaphuni. Kuyinto 64,5 degrees Celsius. Lapho evutha le nto has a umbala okhanyayo blue elangabi futhi akukho ebhema.

Ngaphansi kwezimo zemvelo, akunakwenzeka ukuthola methanol ngefomu khulula. Emvelweni, kukhona kuphela methyl utshwala okunye, okuyizinto amafutha ester futhi izinto. Ziyakwazi ikuyo yonke indawo. Anthranilic acid methyl ester kuqukethwe uwoyela jasmine ne salicylic - emafutheni Wintergreen. Izisetshenziswa ezilethwayo ka methanol ezitholakala alkaloids, udayi yemvelo, njll

ukuthola Ngaphambilini methanol akhicitwe nakuchubeka eyomile ziphuzo zazihluzwa inqubo, ukhuni impahla eluhlaza. abakhiqizi yezimboni zanamuhla zisebenzisa zokwenziwa izindlela.

Methyl utshwala kabanzi njengendlela kuphela ngoba upende varnishes. Isetshenziselwa njengelungu ukuqala ukukhiqiza formaldehyde dimethyl sulfate, methyl chloride, nezinye izingxube zamakhemikhali ezivezwa izindlela amakhemikhali. Futhi, ke ingenye yezingxenye emelana nokubanda enhlanzini yasezindaweni futhi isetshenziselwa denaturing ETHYL utshwala.

Methanol kuyinto ushevu, okubhekisele semithambo kanye izinhlelo sezinzwa. I ubuthi ketshezi ngenxa namachibi ayo lapho udle futhi iguqulwe kuya-formaldehyde, okuyisimo esisongela ukuphila.

Methyl utshwala poisoning okungase kwenzeke ngemuva kokuthola namamililitha emihlanu kuya kweyishumi kubangela yobumpumputhe kubantu. A umthamo esingeqile amathathu amagremu, ngokuvamile imbangela yokufa, okuyinto eyenzeka ngo-kokuphazamiseka umgudu wokuphefumula, iphaphu edema noma ubuchopho kanye uremia noma nciphisa. Izimpawu imnene methanol ubuthi zingavela:

  • ukuphathwa ikhanda;
  • ukucobeka jikelele;
  • ngenxa yobuthakathaka;
  • isicanucanu;
  • Ukugodola;
  • ukuhlanza.

Ngakho, ingozi empilweni akukhona kuphela methyl utshwala ngefomu okumsulwa, kodwa futhi inhlanganisela lapho okuqukethwe methanol incane. Irisidi ye into enobuthi emzimbeni kungathatha indawo hhayi kuphela ngokusebenzisa isimiso sokugaya ukudla bungene. utshwala pair zingene emaphashini. Methanol imali ezincane uyakwazi ukungena emzimbeni futhi ngesikhumba.

Methyl utshwala kwamanye amazwe esetshenziswa njengendlela denaturant for Ethanol isici. Ukusabela okuholela we ikhemikhali wumkhakha izidakamizwa akhiqizwa umkhakha amakha. umthetho Russian sivimbela ukusetshenziswa methanol emikhiqizweni okuhloswe ezikhiqizelwa.

Methyl utshwala ukusebenzisa kwayo njengoba eliphakathi nendawo ukuze Kuhlanganisa omningi walo zezimboni chemical umkhakha. On osekelwe kuyo le polymers ekhiqizwa futhi ezihlukahlukene izinto eziphilayo. Methanol is kabanzi njenge-agent ukulungiswa ezithile zinambuzane.

Methyl utshwala kuyinto impahla eluhlaza ngokukhiqiza methylamine, pentaerythritol, futhi hexamine. Ukusetshenziswa Its ekukhiqizeni polyvinylchloride, ion exchange kanye urea inhlaka, kanye womshini ifilimu lokushicilela. Ngaphandle methanol asikwazi eziqhutshwa izitshalo ammonia. Methyl utshwala is kabanzi embonini eyenza imithi enkulu ekwakhekeni kwemithi. Lo luketshezi ingasetshenziswa njengoba uphethiloli izitshalo amandla, ukuba esikhundleni izimoto uphethiloli. Ngaphandle methanol is hhayi kukhiqizwa acetic acid kanye zokwenziwa kuyo izihlahla zenjoloba. Le into futhi uthola isebenza umkhakha kanye uwoyela negesi eziyinkimbinkimbi izinto.

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