Cov txheej txheem:
Video: Dab tsi yog qhov ceev ntawm Dibenzalacetone?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov ntaub ntawv kwv yees tau tsim los siv ACD / Labs Percepta Platform - PhysChem Module
| Qhov ntom : | 1.1 ± 0.1g / cm33 |
|---|---|
| Flash Point: | 176.1 ± 20.6 ° C |
| Index ntawm Refraction: | 1.650 |
| Molar Refractivity: | 77.6 ± 0.3 cm3 |
| #H daim ntawv cog lus lees txais: | 1 |
Ua li no, vim li cas Dibenzalacetone daj?
Ntshiab dibenzalacetone yog dawb- daj Cov khoom uas tsis yaj hauv dej, tab sis yaj hauv ethanol. Qhov no yog vim nws yog ib tug symmetrical, tsis-polar molecule. dba feem ntau hais nyob rau hauv cov chav kawm organic chemistry, qhia seb nws tau tsim li cas hauv cov tshuaj tiv thaiv nrog benzaldehyde + acetone.
Kuj Paub, dab tsi yog qhov melting point ntawm Dibenzalacetone? Nyob rau hauv lub synthesis ntawm dibenzalacetone Los ntawm aldol condensation ntawm acetone nrog benzaldehyde1 cov khoom tseem ceeb yaj ntawm 110-112 ° C thiab muaj qhov hnyav uv nqus ntawm 330 nm. Ob tug isomers paub.
Ib sab ntawm no, vim li cas Dibenzalacetone nqus UV teeb?
Qhov no yog vim Dibenzalacetone absorbs UV teeb thiab pab tiv thaiv daim tawv nqaij los ntawm tshav ntuj puas rays . Cov khoom uas muaj txiaj ntsig tshaj plaws nyob rau hauv ib qho kev sib xyaw uas siv rau hauv cov tshuaj pleev thaiv hnub yog cov khoom sib xyaw ua ke nqus , xav txog, los sis txawm tawg qhov teeb meem UV rays.
Yuav ua li cas ua Dibenzalactone?
Txheej txheem:
- Siv ib lub khob ntim dej ntxiv 10ml freshly distilled benzaldehyde thiab 20ml ntawm acetone.
- Muab lub khob rau hauv dej txias da dej thiab tom qab ntawd ntxiv 2.5ml sodium hydroxide dropwise nrog tas li stirring.
- Khaws qhov kub ntawm 30oC.
- Tom qab ua tiav qhov sib ntxiv ntawm sodium hydroxide do cov sib tov rau 2 teev.
Pom zoo:
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