alpha-Naphtholphthalein CAS 596-01-0

CAS;596-01-0

Formulae hypotheticae:C28H18O4

Pondus hypotheticum:418.44

EINECS:209-875-5

Synonyma:3,3-bis(4-hydroxynaphthalen-1-yl)-1,3-dihydro-2-benzofuran-1-one; alpha-Naphtholphthalein, indicator, purus 5GR; 3,3-Bis(4-hydroxynaphthalen-1-yl)isobenzofuran-1(3H)-one; 1-NAPHTHOLPHTHALEIN INDICATOR PH 7,1 - 8; 1-NAPHTHOLPHTHALEIN; ALPHA-NAPHTHOLPHTHALEIN; NAPHTOLPHTHALEIN

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Quid est alpha-Naphtholphthalein CAS 596-01-0?

Immunditiae in alpha Nathophthalein plerumque laetissimae colore rubrae sunt, quae mutationibus lucis rubrae in caeruleo-viridis ad pH 7.3-8.7.

Specification

Item	Specification
fervens	496,21°C (aspens aestimatio)
Densitas	1.1532 (aspens aestimatio)
punctum liquescens	238-240 °C (lit.)
pKa	8.0, 8.2, 8.5(at 25℃)
resistivity	1.6400 (aestima)
Repono conditionibus	Repone infra +30°C.

Applicationem

Alpha Nephthophyllein adhibetur ut indicator basi acido-basi. Color ad flavum aurantiacum in pH circuitu 6.7 est et mutat ab aurantiaco ad pH circiter 7.9 in flavum in caeruleum. Impurae in commercio productorum productorum saepe apparent sicut lux rubei coloris, quae mutationibus lucis rubri ad caeruleum-viride ad pH 7.3-8.7.