Khoom zoo ntawm lub raj mis yas
Hauv chav kuaj, lub raj mis yas tau txais lawv cov xwm txheej raws li "universal ntim" ua tsaug rau cov khoom tshwj xeeb ntawm peb cov khoom siv:
PET: Lub teeb yuag thiab tawg -resistant; haum rau luv luv - lub sij hawm cia ntawm qaug zog acids thiab bases (xws li, 5% acetic acid, 10% ethanol).
HDPE: Siab corrosion-resistant; muaj peev xwm tuav cov oxidizers muaj zog xws li 30% hydrogen peroxide.
PP: Siab - kub tiv taus (txog 120 degree); muaj peev xwm tiv taus cov acids muaj zog xws li concentrated hydrochloric acid (nrog rau kev zam ntawm hydrofluoric acid).
Khaws cov tshuaj no kom deb ntawm lub raj mis yas
Txawm tias zoo li "universal" lub raj mis yas yuav "kua" los yog "disintegrate" thaum raug rau cov nram qab no reagents:
Organic Solvents: Acetone thiab chloroform tuaj yeem yaj cov saw hlau molecular ntawm feem ntau cov yas.
Muaj zog Oxidizers: Concentrated nitric acid (tshaj li 68%) tuaj yeem ua rau cov khoom yas ua nkig.
Halogen Compounds: Cov dej bromine tuaj yeem ua rau lub raj mis yas kom o thiab tawg.
Cov Acids Tshwj Xeeb: Hydrofluoric acid-paub rau corroding iav- tuaj yeem nkag mus rau cov yas tau yooj yim dua.
Txoj Cai Golden rau Kev Nyab Xeeb Cia
Mastering kev ruaj ntseg cia ntawm reagents nyob rau hauv lub raj mis yas los rau nco ntsoov peb lub ntsiab lus tseem ceeb:
Kos daim ntawv lo: Daim duab peb sab rov ua dua lub cim rau hauv qab ntawm lub raj mis (tus lej 1 txog 7) qhia txog cov khoom siv thiab nws cov tshuaj tiv thaiv.
Test rau Compatibility: Thaum qhia ib tug tshiab reagent, ua ib tug me me -scale compatibility xeem dhau 24 teev los soj ntsuam rau tej yam tsis zoo tshwm sim.
Hloov Lub Sijhawm: Txawm tias muaj cov tshuaj reagents sib xws, lub thawv ntim khoom yuav tsum tau hloov txhua rau lub hlis kom muaj kev nyab xeeb thiab kev ncaj ncees.