Phenolphthalein/ CAS: 77-09-8
Kev Piav Qhia Luv:
Lub npe khoom: Phenolphthalein
Hom: ZA-N
CAS: 77-09-8
MF: C20H14O4
MW: 318.32
QAUV:
cov lus qhia tshwj xeeb
| Khoom | Cov Lus Qhia Tshwj Xeeb
|
| Qhov tsos | Tsis muaj xim los yog yuav luag tsis muaj xim |
| cov ntsiab lus | 98.0% -101.0% |
| Chloride | Tsis muaj ntau dua concentrated tshaj 0.01% ntawm cov kua siv piv txwv |
| Sulfate | Tsis pub ntau tshaj 0.02% ntawm cov tshuaj tswj |
| Cov khoom niam ntawm fluorescein | Tsis muaj ntau dua concentrated tshaj 0.1% ntawm cov kua siv piv txwv |
| kev rhiab heev | liab dawb |
| Poob thaum ziab | Tsis pub ntau tshaj 1.0% |
| Cov seem ntawm qhov hluav taws kub | Tsis pub ntau tshaj 1.0% |
| Hlau hnyav | Yuav tsum tsis pub tshaj kaum feem ntawm ib lab |
Kev Siv
Cov kev siv tseem ceeb ntawm phenolphthalein: 1. Kev lag luam tshuaj ua cov khoom siv raw rau tshuaj: Nws yog qhov tsim nyog rau kev cem quav thiab tawv ncauj thiab muaj nyob rau hauv ntau hom tshuaj xws li cov ntsiav tshuaj thiab cov tshuaj suppositories. 2. Rau kev tsim cov organic: Nws yog siv rau kev tsim cov yas, tshwj xeeb tshaj yog rau kev tsim cov diazazone polyaryletherketone polymers. Cov polymers no muaj kev tiv thaiv kub zoo heev, tiv thaiv dej, tiv thaiv tshuaj lom neeg corrosion, tiv thaiv kev laus kub thiab kev ua tiav zoo thiab formability. Cov fibers, coatings thiab cov ntaub ntawv sib xyaw ua los ntawm nws tau sai sai siv dav hauv cov teb xws li cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob, cov khoom siv kho tshuab, kev thauj mus los, aerospace, atomic energy engineering thiab tub rog. 3. Nws yog siv ua tus qhia acid-base, tus qhia rau cov kua tsis-aqueous titration, thiab reagent rau chromatographic tsom xam.
Cov khoom no yog ib qho tshuaj uas siv ntau tshaj plaws los hloov xim ntawm pH8.2 (tsis muaj xim) -10.0 (liab). Phenolphthalein kuj yog ib hom tshuaj. Ua ib qho tshuaj laxative, nws ua haujlwm rau ntawm txoj hnyuv loj thiab siv los kho cem quav.
Nws yog siv los ua ib qho qhia txog acid-base thiab ib qho tshuaj laxative los kho cem quav
Cov ntsuas acid-base, cov ntsuas titration uas tsis yog aqueous, cov tshuaj chromatographic analysis reagents.
Ntim thiab Xa Khoom
25KG / Nruas los yog raws li cov neeg siv khoom xav tau.
Yog cov khoom siv dav dav thiab tuaj yeem xa los ntawm dej hiav txwv thiab huab cua
Khaws cia thiab khaws cia
Lub neej txee: 24 lub hlis txij li hnub tsim khoom hauv cov ntim khoom tsis tau qhib khaws cia rau hauv qhov chaw txias thiab qhuav kom tsis txhob raug tshav ntuj ncaj qha, dej.
Lub tsev rau khoom muaj cua nkag, ziab kom qhuav kub tsawg, Sib cais ntawm cov tshuaj oxidants, cov kua qaub.
