Tus qauv ntawm metaformaldehyde yog dab tsi?

Cov txheej txheem:

Tus qauv ntawm metaformaldehyde yog dab tsi?
Tus qauv ntawm metaformaldehyde yog dab tsi?
Anonim

Nws yog cov khoom dawb nrog cov ntxhiab tsw zoo li chloroform. Nws yog ib qho ruaj khov cyclic trimer ntawm formaldehyde, thiab ib qho ntawm peb trioxane isomers; nws cov pob txha molecular muajib lub nplhaib rau tus tswv cuab nrog peb cov pa roj carbon monoxide alternating nrog peb oxygen atoms.

Trioxane tsim li cas?

Production. Trioxane tuaj yeem tau txais los ntawm cov kua qaub-catalyzed cyclic trimerization ntawm formaldehyde nyob rau hauv cov tshuaj muaj zog aqueous.

Tus neeg sawv cev hauv qab no twg muaj lub nplhaib Trioxane?

Tus natural compound artemisinin, cais tawm ntawm tsob ntoo qab zib wormwood (Artemisia annua), thiab qee cov khoom siv hluavtaws yog cov tshuaj tiv thaiv kabmob tseem ceeb uas muaj 1, 2, 4-trioxane. lub nplhaib.

Puas Trioxane muaj kev nyab xeeb?

Trioxane yog qis zog, tsis ntseeg, tsis muaj roj, zoo tshaj yog tias ua tau. Lub trioxane nyob rau hauv kev ua lag luam suav nrog cov qub Vietnam era ntau lawm thiab ib co tom qab ntau lawm kom txaus siab rau "tub rog nyiaj seem" khw.

Puas yog roj lom lom?

Cov pa phem los ntawm cov hluav taws kub hauv tsev ua rau cov tsev neeg muaj kev pheej hmoo - UN. … “Cov pa luam yeeb los ntawm kev hlawv cov roj no ua rau muaj cov tshuaj lom lom ntawm cov khoom thiab tshuaj lom neeg uas hla lub cev tiv thaiv thiab ua rau muaj kev pheej hmoo ntau dua ob npaug ntawm cov kab mob ua pa xws li mob ntsws thiab mob ntsws,” lawv hais.

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