15-Crown-5 CAS 33100-27-5
15-Crown ether-5 yog cov xim tsis muaj xim, pob tshab, kua nplaum uas yooj yim nqus dej noo thiab miscible nrog dej. Nws yog soluble hauv cov kuab tshuaj organic xws li ethanol, benzene, chloroform, thiab dichloromethane. Nws muaj zog xaiv complexing quab yuam rau sodium ions thiab yog ib tug npaum theem hloov catalyst thiab complexing neeg sawv cev.
| Yam khoom | Txuj |
| Qhov tshwm sim | Dawb siv lead ua |
| Purity | ≥97% |
| Crystallization point | 38-41 ℃ |
| Moisture | ≤ 3% |
1. Theem hloov catalyst
(1) Txhim kho cov organic synthesis: txhim kho cov tshuaj tiv thaiv tus nqi thiab tawm los ntawm cov tshuaj tiv thaiv heterogeneous (xws li cov kua-kua theem tshuab). Piv txwv li:
Hauv cov tshuaj tiv thaiv benzoin condensation, ntxiv 7% ntawm 15-crown ether-5 tuaj yeem ua rau cov qoob loo nce siab los ntawm qis heev mus rau 78%.
Nyob rau hauv Wurtz coupling txoj kev rau synthesizing silane, ntxiv 2% ntawm 15-crown ether-5 tuaj yeem ua rau cov qoob loo nce los ntawm 38.2% mus rau 78.8%, thiab txo lub sij hawm cov tshuaj tiv thaiv los ntawm 3 teev.
(2) Cov tshuaj tiv thaiv siv tau: suav nrog kev hloov pauv nucleophilic, redox thiab hlau cov tshuaj tiv thaiv kab mob, tshwj xeeb tshaj yog tsim rau cov tshuaj tiv thaiv ntawm cov ntsev insoluble (xws li potassium cyanide) hauv cov kuab tshuaj organic.
2. Roj teeb electrolyte additive
(1) Kev Tiv Thaiv Lithium dendrites: Hauv lithium roj teeb electrolytes, 15-crown ether-5 txo cov ion concentration ntawm electrode nto los ntawm complexing lithium ions (Li⁺), txhawb nqa cov khoom sib xws. Kev sim qhia pom tias ntxiv 2% tuaj yeem tsim cov roj av du thiab ntom ntom nteg tso cia, thiab lub neej voj voog tau txuas mus rau 178 zaug (lingosittric roj teeb zoo nkauj).
(2) Txhim kho qhov thim rov qab ntawm cov roj teeb lithium-oxygen: tswj cov qauv kev daws teeb meem ntawm Li⁺, txhawb kev decomposition kinetics ntawm Li₂O₂, thiab txhim kho qhov rov qab ntawm cov tshuaj tiv thaiv.
(3) Kev siv cov roj teeb sodium-ion: Siv nws cov kev xaiv ntawm Na⁺ kom ua kom zoo dua sodium ion kis tau tus mob.
3. Hlau ion sib cais thiab nrhiav kom pom
(1) Selective extraction: Nws muaj peev xwm xaiv complexion siab rau cations xws li Na⁺ thiab K⁺, thiab yog siv rau:
Kev kho dej khib nyiab ntawm cov hlau hnyav ions (xws li mercury thiab uranium).
Rov qab cov khoom siv hluav taws xob hauv cov pov tseg nuclear.
(2) Electrochemical sensors: Raws li kev lees paub cov molecules, nws raug kuaj pom cov ions tshwj xeeb (xws li K⁺ thiab Na⁺) hauv cov ntshav lossis ib puag ncig uas muaj rhiab heev.
4. Tshuaj thiab cov ntaub ntawv tshawb fawb
(1) Cov neeg nqa tshuaj: Siv nws cov biocompatibility (ib co derivatives xws li 2-hydroxymethyl-15-crown ether-5) kom ua tiav cov tshuaj xa thiab tswj kev tso tawm.
(2) Kev npaj cov kua dej ntxeem tau: Raws li cov khoom hnyav, ua ke nrog cov hlau organic polyhedrons (xws li MOP-18) los tsim cov kua dej hauv chav tsev kub rau cov roj sib cais lossis cia.
5. Lwm cov ntawv thov kev lag luam
(1) Dye synthesis: Optimize cov tshuaj tiv thaiv txoj kev los txhim kho dye purity thiab yield8.
(2) Precious hlau catalysis: Raws li ib tug ligand los txhim kho cov kev ua thiab stability ntawm catalysts xws li platinum thiab palladium, thiab txo cov nqi ntawm precious hlau siv.
25kgs / nruas, 9tons / 20'container
25kgs / hnab, 20tons / 20'container
15-Crown-5 CAS 33100-27-5
15-Crown-5 CAS 33100-27-5
