1.07233
Phenolphthalein
pH indicator, ACS, Reag. Ph Eur
Synonyme(s) :
Phenolphthalein
About This Item
Produits recommandés
product name
Phenolphthalein, indicator ACS,Reag. Ph Eur
Qualité
ACS reagent
Niveau de qualité
Agence
reag. Ph. Eur.
suitable for SM 2310
suitable for SM 2320
Pression de vapeur
<0.00001 Pa ( 50 °C)
Forme
solid
Perte
≤1% loss on drying, 105°C
Couleur
white to yellow-white
visual transition interval
8.2-9.8, colorless to red-violet
Pf
263.7 °C
Densité
1.296 g/cm3 at 20 °C
Masse volumique apparente
350‑450 kg/m3
λmax
551-554 nm (buffer pH 9.8)
Température de stockage
2-30°C
InChI
1S/C20H14O4/c21-15-9-5-13(6-10-15)20(14-7-11-16(22)12-8-14)18-4-2-1-3-17(18)19(23)24-20/h1-12,21-22H
Clé InChI
KJFMBFZCATUALV-UHFFFAOYSA-N
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Application
- Effectiveness of Phenolphthalein in Sol-Gel Coatings for Sensing and Inhibiting Corrosion on Mild Steel: Research detailing the application of phenolphthalein and Thymol Blue in sol-gel coatings, demonstrating their effectiveness in corrosion inhibition and sensing on mild steel surfaces (Patra et al., 2024).
- Highly Permeable Ultrafiltration Membranes Based on Polyphenylene Sulfone with Cardo Fragments: This article discusses the development of advanced ultrafiltration membranes incorporating phenolphthalein, enhancing their permeability and filtration efficiency (Raeva et al., 2024).
- A fluorescence-based dual sensor for Zn(2+) and PO(4)(3-): Study on a dual sensor system utilizing phenolphthalein, applied for the detection of zinc and phosphate ions in various environmental and biological samples, employing fluorescence signaling (Samanta et al., 2024).
Remarque sur l'analyse
Appearance: White to yellowish white powder
Clarity of the alkoholic solution (10 g/l ethanol): passes test
Absorption maximum λmax. (buffer pH 9.8): 551 - 554 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.01 g/l; buffer pH 9.8; calculated on dried substance): 700 - 750
Transition range: pH 8.2 - pH 9.8 almost colorless - red-violet
Transition range (according to ACS): passes test
Transition interval (according Reag. Ph Eur): passes test
Loss on drying (105 °C): ≤ 1 %
Mention d'avertissement
Danger
Mentions de danger
Conseils de prudence
Classification des risques
Carc. 1B - Muta. 2 - Repr. 2 - Skin Irrit. 2
Code de la classe de stockage
6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
Classe de danger pour l'eau (WGK)
WGK 3
Point d'éclair (°F)
Not applicable
Point d'éclair (°C)
Not applicable
Certificats d'analyse (COA)
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Contenu apparenté
This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.
This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.
This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.
This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.
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