Cov txheej txheem:
Video: Cov khoom twg yog cov piv txwv ntawm cov khoom siv tshuaj xyuas txhua yam uas siv?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Piv txwv ntawm cov khoom siv tshuaj muaj xws li flammability , toxicity, acidity, reactivity (ntau hom), thiab kub ntawm combustion. Hlau, piv txwv li, ua ke nrog oxygen nyob rau hauv lub xub ntiag ntawm dej los ua xeb; chromium tsis oxidize (Daim duab 2).
Ib yam li ntawd, 4 piv txwv ntawm cov khoom siv tshuaj lom neeg yog dab tsi?
Piv txwv ntawm tshuaj muaj zog suav nrog flammability, toxicity, tshuaj stability, thiab kub ntawm combustion. Cov khoom siv tshuaj yog siv los tsim tshuaj kev faib tawm, uas yog siv rau hauv daim ntawv lo ntawm cov thawv ntim khoom thiab chaw cia khoom.
Tsis tas li ntawd, lo lus teb twg yog ib qho piv txwv ntawm cov cuab yeej tshuaj? Teb Kws Tshaj Lij Tshaj Tawm - Piv txwv ntawm Chemical Property muaj xws li flammability, muaj peev xwm rot, reactivity, muaj peev xwm tarnish, muaj peev xwm mus xeb. Hlau, rau piv txwv , ua ke nrog oxygen nyob rau hauv lub xub ntiag ntawm dej los ua xeb.
Kuj Paub, dab tsi yog 5 yam tshuaj lom neeg piv txwv?
Nov yog qee qhov piv txwv ntawm cov khoom siv tshuaj lom neeg:
- Reactivity nrog lwm yam tshuaj.
- Toxicity.
- Coordination tooj.
- Flammability.
- Enthalpy ntawm kev tsim.
- Kub ntawm combustion.
- Oxidation xeev.
- Tshuaj stability.
Dab tsi yog lub cev thiab tshuaj lom neeg ua piv txwv ntawm txhua tus?
Tus general khoom ntawm cov teeb meem xws li xim, ntom, hardness, yog piv txwv ntawm lub cev muaj zog . Cov khoom uas piav qhia txog yuav ua li cas cov tshuaj hloov mus rau hauv ib qho khoom sib txawv kiag li hu ua tshuaj muaj zog . Flammability thiab corrosion / oxidation kuj yog piv txwv ntawm tshuaj muaj zog.
Pom zoo:
Yuav siv txoj hauv kev twg los txiav txim qhov purity ntawm txhua yam ntawm koj cov khoom uas tau rov qab los?
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Cov kev hloov ntawm lub cev txawv ntawm cov tshuaj hloov pauv li cas muab ib qho piv txwv ntawm txhua tus?
Kev hloov tshuaj lom neeg tshwm sim los ntawm cov tshuaj tiv thaiv tshuaj, thaum lub cev hloov pauv yog thaum cov teeb meem hloov pauv tab sis tsis yog tshuaj lom neeg. Piv txwv ntawm kev hloov tshuaj lom neeg yog hlawv, ua noj, xeb, thiab rotting. Piv txwv ntawm kev hloov lub cev yog boiling, melting, khov, thiab shredding
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