Phenolfthaleinum CAS 77-09-8

CAS:77-09-8

Formula molecularis:C20H14O4

Pondus moleculare:318.32

EINECS:201-004-7

Synonymum:alpha, alpha-di(p-hydroxyphenyl)phtalidum; 1(3H)-isobenzofuranonum, 3,3-bis(4-hydroxyphenyl)-; 1(3H)-isobenzofuranonum, 3,3-bis(4-hydroxyphenyl)-; 2,2-bis(p-hydroxyphenyl)phtalidum; 3,3-bis(4-hydroxyphenyl)-1(3h)-isobenzofuranonum; alpha-(p-hydroxyphenyl)-alpha-(4-oxo-2,5-cyclohexadien-1-ylidin)-o-toluicacidum; alpha-di-(p-hydroxyphenyl)phtalidum

Nuntium Tuum Relinque

Detalia Producti

Deprime

Etiquettae Productarum

Quid est Phenolphthaleinum CAS 77-09-8?

Phenolphthaleinum est acidum organicum debile, quod in temperatura ambiente apparet ut crystalli tenues albi vel leviter flavi. Phenolphthaleinum 77-09-8 est inodor et insipidum. Phenolphthaleinum 77-09-8 difficile dissolvitur in aqua, sed facile solubile est in alcohole (ethanolo) et aethere. Phenolphthaleinum dissolvitur in solutione alcoholis ad indicatorem acidi-basis creandum. Phenolphthaleinum 77-09-8 est incolor in solutione acida et ruber in solutione alcalina vel solutione carbonatis metalli alcalini. Attamen, si in solutione alcalina concentrata est, acidum trimetallicum incolor producet. Sal, color ruber evanescit.

Specificatio

Aspectus	Pulvis crystallinus albus vel pallide flavus
Contentum	98-102
Punctum fusionis	260-263℃
Chloridum	≤0.01
Sulfas	≤0.02
Sensibilitatem	Qualificatus
Residuum in ignitione (secundum sulfatum)	≤0.1
Damnum in siccatione	≤1.0
Metallum grave	≤0.001
Numerus totalis bacteriorum aerobicorum	≤1000cfu/g
Numerus totalis fungorum et fermentorum	≤100cfu/g

Applicatio

1. Materiae primae pharmaceuticae ad industriam pharmaceuticam: aptae constipationi habituali et pertinaci, praesto in tabulis, suppositoriis aliisque formis medicamentorum.

2. Phenophthaleinum in synthesi organica adhibitum: pulvis phenolphthaleini imprimis ad materias plasticas syntheticas adhibetur, praesertim ad synthesim polymerorum naphthyridini polyaryl aetheris cetoni polyaryl aetheris cetoni. Hoc genus polymeri excellentem resistentiam calori, aquae, et chemicam habet. Propter resistentiam corrosionis, resistentiam caloris senescentiae, et bonam tractationem et formabilitatem, fibrae, tegumenta et materiae compositae ex eo factae mox late in apparatibus electronicis, apparatu mechanico, et transportatione adhibentur.

3. Phenolphthaleinum ut indicator acidi et basis, indicator ad titrationem solutionum non-aquosarum, et reagens ad analysin chromatographicam adhibitum.