Nrov Tsim rau Tshuaj Reagent pH Qhia 99% Thymolphthalein CAS 125-20-2
Peb txoj kev loj hlob nyob ntawm cov khoom siv siab heev, cov txuj ci zoo heev thiab cov thev naus laus zis txuas ntxiv muaj zog rau Kev Tsim Qauv Nrov rau Tshuaj Reagent pH Qhia 99%Thymolphthalein CAS 125-20-2, Cia peb koom tes ua ke los tsim kom muaj lub neej yav tom ntej zoo nkauj. Peb zoo siab tos txais koj tuaj xyuas peb lub koom haum lossis hu rau peb kom koom tes!
Peb txoj kev loj hlob nyob ntawm cov cuab yeej siv siab heev, cov txuj ci zoo heev thiab cov cuab yeej siv thev naus laus zis txuas ntxiv mus rauThymolphthalein thiab 125-20-2, Peb cov khoom tau xa tawm mus rau sab qab teb sab hnub tuaj Asia Euro-America, thiab muag rau tag nrho peb lub tebchaws. Thiab nyob ntawm qhov zoo heev, tus nqi tsim nyog, kev pabcuam zoo tshaj plaws, peb tau txais cov lus tawm tswv yim zoo los ntawm cov neeg siv khoom txawv teb chaws. Koj raug txais tos los koom nrog peb rau ntau qhov ua tau thiab cov txiaj ntsig. Peb txais tos cov neeg siv khoom, cov koom haum ua lag luam thiab cov phooj ywg los ntawm txhua qhov chaw ntawm lub ntiaj teb los tiv tauj peb thiab nrhiav kev koom tes rau kev sib pab.
ThymolphthaleinLub npe scientific yog "3,3-bis(4-hydroxy-5-isopropyl-2-methylphenyl)-phthalide", uas yog cov organic reagent. Cov mis tshuaj yog C28H30O4, thiab qhov hnyav molecular yog 430.54. Nws yog hmoov dawb crystalline. Nws yooj yim soluble hauv ether, acetone, sulfuric acid thiab alkaline kua, thiab insoluble hauv dej. Nws feem ntau siv ua tus qhia acid-base, thiab nws cov xim hloov pH yog 9.4-10.6, thiab xim hloov ntawm tsis muaj xim mus rau xiav. Thaum siv, nws feem ntau npaj rau hauv 0.1% 90% ethanol kua. Nws kuj feem ntau npaj nrog lwm cov cim qhia los tsim ib qho cim qhia ua ke kom ua rau nws cov xim hloov pauv nqaim dua thiab qhov kev soj ntsuam meej dua.
| YAM KHOOM | TUS QAUV | TXAUS SIAB |
| Kev txheeb xyuas | Dawb rau cov hmoov dawb dawb | Ua raws li |
| 1H-NMR | Cov spectrum zoo sib xws nrog kev siv | Dhau |
| HPLC kev huv huv | ≥98% | 99.6% |
| Poob thaum ziab | 1% siab tshaj | 0.24% |
Thymolphthalein feem ntau siv ua qhov qhia txog acid-base, nrog rau pH hloov xim ntawm 9.4 txog 10.6, thiab hloov xim ntawm tsis muaj xim mus rau xiav. Thaum siv, nws feem ntau npaj ua 0.1% 90% ethanol kua, thiab feem ntau sib xyaw nrog lwm cov cim qhia los ua ib qho cim qhia sib xyaw kom ua rau nws qhov hloov xim nqaim dua thiab pom tseeb dua. Piv txwv li, ib qho cim qhia ua los ntawm kev sib xyaw 0.1% ethanol kua ntawm cov tshuaj reagent no nrog 0.1% ethanol kua ntawm phenolphthalein tsis muaj xim hauv cov kua qaub, ntshav hauv cov kua alkaline, thiab nce ntawm pH 9.9 (qhov hloov xim), uas yooj yim heev rau kev pom.
Cov khoom raug ntim rau hauv hnab, 25kg / nruas
Peb txoj kev loj hlob nyob ntawm cov khoom siv siab heev, cov txuj ci zoo heev thiab cov thev naus laus zis txuas ntxiv muaj zog rau Kev Tsim Nrov rau Tshuaj Reagent pH Qhia 99% Thymolphthalein CAS 125-20-2, Cia peb koom tes ua ke los tsim kom muaj lub neej yav tom ntej zoo nkauj. Peb zoo siab tos txais koj tuaj xyuas peb lub koom haum lossis hu rau peb kom koom tes!
Nrov Tsim rauThymolphthalein thiab 125-20-2, Peb cov khoom tau xa tawm mus rau sab qab teb sab hnub tuaj Asia Euro-America, thiab muag rau tag nrho peb lub tebchaws. Thiab nyob ntawm qhov zoo heev, tus nqi tsim nyog, kev pabcuam zoo tshaj plaws, peb tau txais cov lus tawm tswv yim zoo los ntawm cov neeg siv khoom txawv teb chaws. Koj raug txais tos los koom nrog peb rau ntau qhov ua tau thiab cov txiaj ntsig. Peb txais tos cov neeg siv khoom, cov koom haum ua lag luam thiab cov phooj ywg los ntawm txhua qhov chaw ntawm lub ntiaj teb los tiv tauj peb thiab nrhiav kev koom tes rau kev sib pab.
