Production. Ketene yog tsim los ntawm dehydrating acetic acid ntawm 700-750 ° C nyob rau hauv lub xub ntiag ntawm triethyl phosphate ua catalyst los yog los ntawm thermolysis ntawm acetone ntawm 600-700 ° C nyob rau hauv muaj cov pa roj carbon disulfide li. ib catalyst. Lub dimerization rau diketene pib tshwm sim nyob rau hauv chav tsev kub: 2 H2C=C=O.
Diketene siv rau dab tsi?
Diketene derivatives yog qhov tseem ceeb hauv kev lag luam nruab nrab uas feem ntau yog siv rau tsim cov esters thiab acetoacetate amides. Cov diketene derivatives no kuj siv los tsim cov pigments thiab dyestuff. Cov no yog cov reactive lub tsev blocks uas tuaj yeem sib xyaw kom tsim tau ntau yam khoom.
Diketene derivatives yog dab tsi?
Diketene yog cov kua tsis muaj xim uas tsim los ntawm dimerization ntawm ketene. Nws yog ib lub tsev thaiv uas muaj zog heev uas tuaj yeem ua ke nrog ntau lwm cov tshuaj lom neeg los ua ntau yam khoom. … Peb cov derivatives diketene yog siv rau hauv kev lag luam tshuaj, vitamin, agrochemical thiab pigment industries.
CH2CO yog dab tsi?
Carbon oxide (c2o) CH2CO.
Vim li cas ketene toxic?
Ketene yog cov tshuaj lom ua pa uas tuaj yeem nthuav tawm qeeb toxicity rau cov txheej txheem alveolar (feem ntau capillaries) ua rau tuag los ntawm pulmonary edema. … Zoo li phosgene, cov teebmeem pulmonary ntawm kev nqus tau rau ketene tuaj yeem tshwm sim thaum tsis muaj kev khaus ncaj qha los ntawm ketene lossis nws cov khoom tawg,acetic acid.
