Qhov sib txawv tseem ceeb ntawm sulfa thiab sulfur yog sulfa yog tshuaj tua kab mob, hos sulfur yog tshuaj lom neeg.
Sulfur yog cov khoom siv tshuaj muaj lub cim S thiab tus lej atomic 16. Nws tuaj yeem tsim ntau yam tshuaj lom neeg. Sulfonamide yog ib qho kev sib xyaw ua ke, uas yog siv los tsim qee yam tshuaj; pawg tshuaj uas tsim los ntawm sulfonamide hu ua sulfa tshuaj.
Sulfa yog dab tsi?
Sulfa yog ib lub npe ntawm ib pawg tshuaj tua kab mob uas muaj sulfonamide ua haujlwm hauv lawv cov qauv. Cov no yog cov tshuaj hluavtaws. Cov no yog thawj cov tshuaj uas tib neeg siv los kho cov kab mob kab mob hauv tib neeg. Txawm li cas los xij, kev siv cov tshuaj no tau poob qis vim tias muaj lwm cov tshuaj tua kab mob uas muaj kev nyab xeeb thiab siv tau zoo dua. Tsis tas li ntawd, lawv tseem siv tau (rau cov kab mob urinary), tab sis nws tau muab tshuaj kom zoo vim tias kev ua xua los ntawm cov tshuaj sulfa yog qhov tshwm sim heev.
Daim duab 01: Cov qauv ntawm sulfonamide
tshuaj sulfa yog qhov txawv ntawm lwm cov tshuaj muaj sulfur thiab cov khoom noj ntxiv, piv txwv li sulfates thiab sulfites. Cov no yog cov tshuaj tsis muaj feem cuam tshuam nrog sulfonamide ua haujlwm pab pawg. Ntxiv mus, lawv tsis pom qhov ua xua tshwm sim los ntawm sulfonamide.
Peb tuaj yeem npaj cov tshuaj sulfa siv cov tshuaj tiv thaiv ntawm sulfonyl chloride nrog ammonia. Qee zaum, sulfonamide sib xyaw nrog lwm cov tshuaj tua kab mob xws li Trimethoprim, txhawm rau tiv thaiv qee cov enzymes xws li dihydrofolate reductase.
Sulfur yog dab tsi?
Sulfur yog cov khoom siv tshuaj muaj lub cim S thiab atomic naj npawb 16. Nws yog ib qho nonmetal uas muaj ntau nyob rau hauv cov xwm txheej thiab nyob rau hauv ib txwm muaj, nws zoo nkaus li daj daj xim crystalline khoom. Thiab, cov khoom no muaj octatomic molecules ntawm leej faj, uas muaj cycles ntawm sulfur atoms nrog molecular mis S8.
Daim duab 02: Pom tshwm sim ntawm Sulfur
Txij li cov sulfur tshwm sim hauv cov mines, peb tuaj yeem tau txais cov khoom no los ntawm kev khawb av. Ntxiv mus, pyrite yog lwm qhov chaw ntawm sulfur. Nyob rau lub sijhawm tsis ntev los no, tib neeg tau muab cov tshuaj sulfur los ntawm cov ntsev domes. Txawm li cas los xij, tam sim no peb tsim cov khoom no ua ib sab khoom ntawm cov txheej txheem kev lag luam, piv txwv li roj refining.
R-S-R + 2 H2 → 2 RH + H2S (hydrodesulfurization)
3 O2 + 2 H2S → 2 SO2 + 2 H 2O
SO2 + 2 H2S → 3 S + 2 H2O
Qhov txawv ntawm Sulfa thiab Sulfur yog dab tsi?
Sulfa yog ib lub npe ntawm ib pawg tshuaj tua kab mob uas muaj cov sulfonamide ua haujlwm hauv lawv cov qauv, thaum sulfur yog cov tshuaj lom neeg muaj cov cim S thiab atomic tooj 16. Yog li ntawd, qhov sib txawv tseem ceeb ntawm sulfa thiab sulfur yog hais tias sulfa yog tshuaj tua kab mob, whereas sulfur yog ib yam tshuaj. Ntxiv mus, sulfur tshwm sim ib txwm muaj, tab sis sulfa yog cov khoom siv hluavtaws, uas tsis tshwm sim ib txwm muaj.
Cov duab hauv qab no qhia ntau qhov sib piv ntsig txog qhov sib txawv ntawm sulfa thiab sulfur.
Summary – Sulfa vs Sulfur
Txawm hais tias cov ntsiab lus sulfa thiab sulfur suab zoo ib yam, lawv yog ob lo lus sib txawv nrog ntau qhov sib txawv ntawm lawv. Qhov sib txawv tseem ceeb ntawm sulfa thiab sulfur yog sulfa yog tshuaj tua kab mob, hos sulfur yog cov tshuaj lom neeg.
