Kuchotsera apamwamba Phenolphthalein cas 77-09-8
Ubwino wake
- Chemical Fomula: C20H14O4
- Kulemera kwa maselo: 318.33 g / mol
- Maonekedwe: ufa woyera mpaka woyera wa crystalline
- Malo osungunuka: 258-263 ° C
- Kusungunuka: Kusungunuka m'madzi, kusungunuka mu mowa, ether, ndi acetic acid
Phenolphthalein imagwiritsidwa ntchito ngati chizindikiritso mu acid-base titrations, pomwe imawonetsa kusintha kwa mtundu kuchokera ku mtundu wopanda utoto kupita ku pinki pomwe pH ikusintha kuchoka ku acidic kupita kumchere.Khalidweli limapangitsa kuti likhale lofunika kwambiri m'ma laboratories ophunzirira ndi malo osiyanasiyana ofufuza, ndikuwonetsetsa kutsimikizika kwatsatanetsatane.
Komanso, phenolphthalein amapeza ntchito mu diagnostics zachipatala, makamaka pozindikira vuto m'mimba.Amagwiritsidwa ntchito ngati mankhwala ofewetsa tuvi tolimba, kupereka njira yofatsa komanso yothandiza pochotsa kudzimbidwa.Akalowetsedwa, phenolphthalein amasintha mtundu wodalira pH mkati mwa matumbo, potero kuthandizira kuwunika momwe matumbo amagwirira ntchito.
Kuphatikiza pakugwiritsa ntchito mankhwala ndi mankhwala, phenolphthalein imagwiranso ntchito muzodzoladzola ndi zinthu zosamalira anthu.Pawiriyi imagwiritsidwa ntchito muzopaka utoto watsitsi ndi zodzoladzola zina, zomwe zimapatsa mtundu womwe mukufuna.Kukhazikika kwake komanso kugwirizana ndi mapangidwe osiyanasiyana kumapangitsa kuti ikhale chisankho choyenera kukulitsa kukongola kwazinthu zosamalira anthu.
Phenolphthalein yathu, yoyera kwambiri komanso yosasinthasintha, imapangidwa motsatira miyezo yolimba yamakampani.Timatsimikizira kuchotsedwa kwa zonyansa ndi zowonongeka, kukupatsani mankhwala omwe amakwaniritsa zomwe akuyembekezera.Ndi kugwiritsa ntchito kwake kosiyanasiyana, phenolphthalein iyi ndi chida chofunikira kwambiri kwa akatswiri pazamankhwala, zamankhwala, ndi zodzola.
Ikani oda yanu lero ndikuwona machitidwe apadera a phenolphthalein CAS: 77-09-8.Khulupirirani kulondola kwake komanso kudalirika pazosowa zanu zonse zamaphunziro, zasayansi, ndi mafakitale.
Kufotokozera
Maonekedwe | White ufa | White ufa |
Kuyesa (%) | 98-102 | 99.6 |
Malo osungunuka (°C) | 260-263 | 261-262 |
Mtundu wa mowa njira | Gwirizanani | Gwirizanani |
Ma kloridi (%) | ≤ 0.01 | <0.01 |
Sulphates (%) | ≤ 0.02 | <0.02 |
Malire a fluoran | Gwirizanani | Gwirizanani |
Kumverera | Gwirizanani | Gwirizanani |
Kutaya pakuyanika (%) | ≤1 | 0.1 |
Zotsalira pakuyatsa (%) | ≤0.1 | 0.02 |