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Alpha-naphtholphtaléine, Thermo Scientific Chemicals
Description
Indicator in 0.1% or 0.04% alcohol solution.α-Naphtholphthalein is used as a pH indicator and operates in the pH ranges between 7.3 and 8.7. It is also used in the designing of optical carbon dioxide sensor based on fluorescence intensity.
This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Spécification
Spécification
Nom chimique ou matériau | alpha-Naphtholphthalein |
Point de fusion | 238°C to 240°C |
Couleur | Marron |
Quantité | 1 g |
Merck Index | 14,6389 |
Informations sur la solubilité | Soluble in ethanol. Insoluble in water. |
Poids de la formule | 418.45 |
Forme physique | Poudre |
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Certificats
Certificats
Un numéro de lot est requis pour afficher les résultats sur les certificats. Pour retrouver le numéro de lot sur des commandes passées, utiliser le menu suivi de commande.
Numéro de lot | Type de certificat | Date | Catalog Number |
---|---|---|---|
P26L037 | Certificat d’analyse | 28/03/2025 | 041221.14,041221.03,041221.06 |
W13K035 | Certificat d’analyse | 20/09/2024 | 041221.03,041221.14,041221.06 |
W14G066 | Certificat d’analyse | 06/09/2023 | 041221.03,041221.14,041221.06 |
P09I008 | Certificat d’analyse | 12/04/2022 | 041221.03,041221.14,041221.06 |
Z29H034 | Certificat d’analyse | 12/04/2022 | 041221.03,041221.14,041221.06 |
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