Raws li lub npe qhov txawv ntawm phosphate thiab phosphide yog tias phosphate yog (chemistry) ib qho ntsev lossis ester ntawm phosphoric acidthaum phosphide yog (chemistry) txhua qhov sib txuas ntawm phosphorus, tshwj xeeb tshaj yog ib lub xeev oxidation -3.
lub npe phosphate yog dab tsi?
Sodium phosphate yog ib lub ntsiab lus dav dav rau ntau yam ntsev ntawm sodium (Na +) thiab phosphate (PO43−). Phosphate kuj tsim cov tsev neeg los yog condensed anions nrog rau di-, tri-, tetra-, thiab polyphosphates. Feem ntau ntawm cov ntsev no paub nyob rau hauv ob qho tib si anhydrous (dej tsis muaj) thiab hydrated forms.
phosphate tau nws lub npe li cas?
Lub npe muab los ntawm Greek phosphoros rau "kev coj lub teeb" vim tias nws muaj cov khoom ci hauv qhov tsaus ntuj. Qhov no kuj yog lub npe qub rau lub ntiaj teb Venus, thaum nws tshwm sim ua ntej hnub tuaj. Phosphorus tau tshawb pom los ntawm German tub lag luam Hennig Brand hauv 1669.
Puas yog phosphate tsim teeb meem rau tib neeg?
Dawb phosphorus yog tshuaj lom heev rau tib neeg, thaum lwm hom phosphorus muaj tshuaj lom tsawg dua. … Ntev ntev (ntev) raug phosphorus dawb hauv tib neeg ua rau necrosis ntawm lub puab tsaig, hu ua "phossy puab tsaig." EPA tau faib cov phosphorus dawb ua pab pawg D, tsis cais raws li tib neeg carcinogenicity.
phosphate ua dab tsi hauv lub cev?
Phosphate yog cov khoom them nqi (ion) uas muaj cov ntxhia phosphorus. Lub cevxav tau phosphorus rau txhim kho cov pob txha thiab cov hniav, pab cov hlab ntsha ua haujlwm, thiab ua kom cov leeg mob. Feem ntau (li 85%) ntawm cov phosphorus muaj nyob rau hauv phosphate yog pom nyob rau hauv cov pob txha.
