Polyhalogenated compounds (PHCs) yog txhua qhov sib txuas nrog ntau qhov hloov pauv ntawm halogens Lawv yog qhov tshwj xeeb thiab tseem ceeb vim tias lawv bioaccumulate hauv tib neeg, thiab suav nrog cov superset uas muaj ntau yam tshuaj lom. thiab cov tshuaj muaj carcinogenic ua tswv cuab.
Dab tsi yog polyhalogenated biphenyls?
Polychlorinated biphenyls (PCBs) thiab polybrominated biphenyls (PBBs) yog cov khoom uas nws lub cev / tshuaj lom neeg tau ua rau lawv siv kev lag luam thoob plaws… Nrog rau kev kwv yees ntawm kev pheej hmoo ntawm mob qog noj ntshav rau tib neeg.
Dab tsi yog polyhalogenated hydrocarbons?
Polyhalogenated aromatic hydrocarbons yog planar polycyclic organic compounds nrog ntau tus lej ntawm halogen atoms, feem ntau yog chlorine. … Cov tshuaj no yog tshuaj lom rau lub plab, nrog rau lub siab thiab lub txiav.
Nws yog poly halogenated compound?
Polyhalogen Compound - Dichloromethane, Trichloromethane, Tetrachloromethane, Iodoform, Freons, DDT. Cov hydrocarbons los yog cov pa roj carbon monoxide uas muaj ntau tshaj ib lub halogen atom (pab pawg 17 cov ntsiab lus ntawm cov lus niaj hnub niaj hnub) hu ua polyhalogen compounds.
Polyhalides piav qhia nrog piv txwv yog dab tsi?
tshuaj lom neeg ntawm cov hlau halides thiab halogens. Polyhalides uas muaj bromine (polybromides) thiab iodine (polyiodides) yog paub-piv txwv li, potassium triio-dide, KI 3; Cesium pentabromide, CsBr 5; thiab potassium enneaiodide, KI 9 Polybromides thiab polyiodides dissociate rau hauv ions hauv aqueous daws.
