Vim li cas Star Grace Mining
| Potassium nitrate thiab dej | |
|
Formula hnyav |
101.1032 |
|
Qhov ntom |
1.00g/mLat 20 degree |
| Qhia txog Potassium Nitrate thiab Dej | Potassium nitrate thiab dej tsim muaj zog thiab ntau yam sib xyaw uas muaj ntau yam kev siv hauv ntau yam lag luam. Thaum cov poov tshuaj nitrate yaj nyob rau hauv dej, nws dissociates tsim cov poov tshuaj ions zoo (K+) thiab tsis zoo nqi nitrate ions (NO3-). Cov ions no cuam tshuam nrog cov dej molecules, ua rau muaj ntau yam tshuaj lom neeg cov tshuaj tiv thaiv uas ua rau qhov sib xyaw no muaj txiaj ntsig rau ntau lub hom phiaj. |
|
Kev sim ntawm Dawb Qab Zib thiab Potassium Nitrate |
Tej zaum nws yuav yog ib qho kev sib xyaw ntawm cov poov tshuaj nitrate thiab cov suab thaj dawb hauv qhov sib piv ntawm 13: 7 lossis 6: 4, uas ua rau kub hnyiab thiab ua rau cov nplaim liab, ua rau cov poov tshuaj carbonate thiab nitrogen gas. Ib tug neeg tau siv cov tshuaj tiv thaiv no los ua tus qauv foob pob ua ntej, tab sis nws siv cov piam thaj.
Boil poov tshuaj nitrate thiab qab zib nyob rau hauv dej thiab stirring tas li (siv lub induction cooker; tsis txhob siv qhib nplaim taws) kom txog thaum Golden xim av, ces hloov mus rau rwb thaiv tsev (yog hais tias nws yog 7 lub zog, hloov mus rau 3rd iav) kom txog thaum nws siav zoo li ib tug ntses, thiab ces ib txwm cua qhuav thiab ignite los tsim cov nyhuv saum toj no. |
|
Qhov xwm txheej tshwm sim |
Thawj qhov xwm txheej: Nyob rau hauv cov cua kub lossis kev sib txhuam, cov suab thaj dawb tuaj yeem raug cov tshuaj tiv thaiv me ntsis nrog potassium nitrate. Raws li cov tshuaj tiv thaiv mechanism, cov tshuaj tiv thaiv cov khoom muaj xws li carbon dioxide, dej, nitric oxide, thiab ib nrab alkyl nitric acid. Qhov sib npaug C12H22O11+4KNO3 → 4CO2+5H2O+4NO + K2CO3 sawv cev rau qhov xwm txheej dav dav ntawm cov tshuaj tiv thaiv ntawm cov piam thaj dawb thiab potassium nitrate. Ntawm lawv, C12H22O11 sawv cev rau cov mis rau sucrose (dawb qab zib) molecules, thaum KNO3 sawv cev rau cov mis rau poov tshuaj nitrate molecules.
Qhov thib ob scenario: Nyob rau hauv lub xub ntiag ntawm muaj zog acids, dawb qab zib thiab poov tshuaj nitrate tuaj yeem raug mob hnyav dua, ua rau muaj zog exothermic tshwm sim uas tej zaum yuav ua rau tawg. Qhov no yog vim hais tias cov nitrate ion NO3 muaj zog oxidizing muaj peev xwm, uas muaj peev xwm oxidize hydroxyl thiab ketone pawg nyob rau hauv lub dawb qab zib molecule, yog li hloov nws cov qauv molecular. Cov qauv ntawm cov piam thaj dawb raug rhuav tshem, tsim cov khoom lag luam oxidation, qee yam yog cov khoom tawg thiab tawg. Qhov no tuaj yeem raug xa mus rau oxidation cov tshuaj tiv thaiv ntawm potassium nitrate. |
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