Chaw Sib Tw Tromium vs. Hexavalent Chromium

1. Cov Kab Mob Siv Tshuaj:

• Chaw Sib Tw Sib Tw (Cr(I)):
  • Tus yeeb yam: Ib txwm tshwm sim, feem ntau suav tias yog kev lom zem.
  • Oxidation State: Chromium muaj nyob rau hauv lub +3 Oxidation State.
• Hexavalent Chromium (Cr(Vi)):
  • Tus yeeb yam: Feem ntau yog ib qho kev lag luam los ntawm, paub rau ntau dua toxicity.
  • Oxidation State: Chromium muaj nyob rau hauv lub +6 Oxidation State.

2. Kev Cuam Tshuam Kev Noj Qab Haus Huv thiab Ib puag ncig:

• Chaw Sib Tw Sib Tw:
  • Kev Noj Qab Haus Huv: Feem ntau suav tias muaj kev puas tsuaj rau tib neeg kev noj qab haus huv.
  • Cuam tshuam ib puag ncig: Poses Kev pheej hmoo ib puag ncig ib puag ncig.
• Hexavalent Chromium:
  • Kev Noj Qab Haus Huv: Paub rau ntau dua toxicity, txuam nrog kev ua pa thiab cov tawv nqaij.
  • Cuam tshuam ib puag ncig: Ntau yam piam sij, thiab ua rau muaj kev pheej hmoo ntau dua rau cov tsiaj txhu ecosystems.

3. Kev Siv thiab Kev Siv:

• Chaw Sib Tw Sib Tw:
  • Daim ntawv thov: Feem ntau siv nyob rau hauv kev ua kom zoo nkauj chrome plating, Tanning cov txheej txheem, thiab qee cov tshuaj tiv thaiv corrosion.
• Hexavalent Chromium:
  • Daim ntawv thov: Keeb kwm siv hauv ntau cov txheej txheem muaj, suav nrog chrome plating, Tab sis nws siv tau txwv vim kev txhawj xeeb ib puag ncig thiab kev noj qab haus huv.

4. Qhov zoo thiab qhov tsis zoo:

• Chaw Sib Tw Sib Tw:
  • Qhov Zoo: Feem ntau suav hais tias muaj kev nyab xeeb, thiab ntau tus phooj ywg ib puag ncig.
  • Tsis zoo: Tej zaum yuav muaj cov kev txwv hauv qee cov ntawv thov muaj kev lag luam vim muaj kev txhim kho corrosion tsis kam piv rau HoxaNent Chromium.
• Hexavalent Chromium:
  • Qhov Zoo: Keeb kwm muaj nuj nqis rau nws cov kev ua kom zoo dua hauv cov txheej txheem muaj.
  • Tsis zoo: High toxicity, Cov cai nruj me ntsis txwv nws siv, thiab kev txhawj xeeb ib puag ncig.

5. Ntau lawm nyuaj thiab tus nqi:

• Chaw Sib Tw Sib Tw:
  • Ntau lawm nyuaj: Kev nce qib hauv thev naus laus zis tau txhim kho cov txheej txheem ntau lawm, ua kev sib cav sib zog chromium tau siv tau.
  • Tus nqi: Feem ntau, Cov nqi ntau lawm ntawm cov troment chromium yog kev sib tw.
• Hexavalent Chromium:
  • Ntau lawm nyuaj: Keeb kwm yooj yim dua los tsim, Tab sis cov kev cai nruj me nyuam tau nce qhov nyuaj.
  • Tus nqi: Ua raws li ib puag ncig txoj cai thiab kev ntsuas kev nyab xeeb tau nce ntau lawm tus nqi.

6. Kev cai tswjhwm ib puag ncig:

• Chaw Sib Tw Sib Tw:
  • Kev cai tswj hwm: Feem ntau lees txais thiab muaj kev tswj hwm tsawg dua vim yog qis toxicity.
• Hexavalent Chromium:
  • Kev cai tswj hwm: Cov tswj hwm tau zoo heev vim muaj kev txhawj xeeb txog kev noj qab haus huv thiab ib puag ncig. Ntau thaj tsam uas tsim hwj chim txwv rau nws siv.

Hauv kev xaus, Qhov kev xaiv ntawm kev sib tw thiab hexavalent chromium nyob ntawm daim ntawv thov tshwj xeeb, Kev Tswj Fwm, thiab ib puag ncig kev txiav txim siab. Thaum lub sij hawm tu cev chromium feem ntau suav tias yog kev nyab xeeb dua, Ob qho tib si muaj lawv cov txiaj ntsig thiab cov kev txwv, thiab kev lag luam txuas ntxiv hloov zuj zus mus rau cov kev coj ua zoo dua thiab ib puag ncig cov kev coj ua.