Isaphulelo esikumgangatho ophezulu Phenolphthalein cas 77-09-8
Iingenelo
- Ifomula yeMichiza: C20H14O4
- Ubunzima beMolekyuli: 318.33 g / mol
- Imbonakalo: Imhlophe ukuya kumhlophe-umgubo wekristale
- Indawo yokunyibilika: 258-263°C
- Ukunyibilika: akunyibiliki emanzini, kunyibilika etywaleni, ether, kunye neacetic acid
I-Phenolphthalein isetyenziswa ngokuyinhloko njengesalathisi kwi-acid-base titrations, apho ibonisa utshintsho lombala ukusuka kwi-colorless ukuya kwipinki njengoko i-pH isuka kwi-acidic ukuya kwi-alkaline.Olu phawu lwenza ukuba lube luncedo kwiilabhoratri zemfundo kunye nezicwangciso ezahlukeneyo zophando, ukuqinisekisa ukuzimisela okuchanekileyo kwesiphelo.
Ngapha koko, i-phenolphthalein ifumana isicelo kuxilongo lwezonyango, ngakumbi ekufumaneni ukungasebenzi kakuhle kwamathumbu.Isetyenziswa njenge-laxative, ibonelela ngesisombululo esithambileyo nesisebenzayo sokuphelisa ukuqhina.Xa ifakwe, i-phenolphthalein ifumana utshintsho lombala oxhomekeke kwi-pH ngaphakathi kwamathumbu, ngaloo ndlela inceda ekuhloleni imisebenzi yamathumbu.
Ukongeza kusetyenziso lwayo lweekhemikhali kunye namayeza, i-phenolphthalein iphinda ifumane ukusetyenziswa kwizithambiso kunye neemveliso zokhathalelo lomntu.Le khompawundi isetyenziswa kwimibala yeenwele kunye namanye amalungiselelo okuthambisa, ukubonelela ngemibala efunekayo yombala.Ukuzinza kwayo kunye nokuhambelana nokuqulunqwa okuhlukeneyo kwenza kube yinto efanelekileyo yokuphucula isibheno sobuhle beemveliso zokhathalelo lomntu.
I-phenolphthalein yethu, enobunyulu obuphezulu kunye nomgangatho ongaguqukiyo, yenziwa ngokulandela imigangatho engqongqo yoshishino.Siqinisekisa ukupheliswa kokungcola kunye nokungcola, sikubonelela ngemveliso ehlangabezana nokulindela okuphezulu.Ngoluhlu lwayo olubanzi lwezicelo, le phenolphthalein sisixhobo esiyimfuneko kwiingcali kwiinkalo zekhemistri, amayeza, kunye nezithambiso.
Faka iodolo yakho namhlanje kwaye ufumane intsebenzo ekhethekileyo ye-phenolphthalein CAS: 77-09-8.Thembela ngokuchaneka kwayo kunye nokuthembeka kwazo zonke iimfuno zakho zemfundo, zesayensi, kunye nezoshishino.
Inkcazo
Imbonakalo | Umgubo omhlophe | Umgubo omhlophe |
Isivavanyi (%) | 98-102 | 99.6 |
Indawo yokunyibilika (°C) | 260-263 | 261-262 |
Umbala wesisombululo sotywala | Vumelana | Vumelana |
Iikloridi (%) | ≤ 0.01 | <0.01 |
Iisulphates (%) | ≤ 0.02 | <0.02 |
Umda we-fluoran | Vumelana | Vumelana |
Uvakalelo | Vumelana | Vumelana |
Ilahleko ekomisweni (%) | ≤ 1 | 0.1 |
Intsalela ekutshisweni (%) | ≤0.1 | 0.02 |