If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
1.07233
Phenolphthalein
pH indicator, ACS, Reag. Ph Eur
Sinonimo/i:
Phenolphthalein
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58,90 €
103,00 €
442,00 €
Informazioni su questo articolo
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Nome del prodotto
Phenolphthalein, indicator ACS,Reag. Ph Eur
Grado
ACS reagent
Livello qualitativo
agenzia
reag. Ph. Eur.
suitable for SM 2310
suitable for SM 2320
Tensione di vapore
<0.00001 Pa ( 50 °C)
Stato
solid
Perdita
≤1% loss on drying, 105°C
Colore
white to yellow-white
visual transition interval
8.2-9.8, colorless to red-violet
Punto di fusione
263.7 °C
Densità
1.296 g/cm3 at 20 °C
Densità bulk
350‑450 kg/m3
λmax
551-554 nm (buffer pH 9.8)
Temperatura di conservazione
2-30°C
Stringa SMILE
O1C(c4c(cccc4)C1=O)(c3ccc(cc3)O)c2ccc(cc2)O
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
KJFMBFZCATUALV-UHFFFAOYSA-N
Cerchi prodotti simili? Visita Guida al confronto tra prodotti
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Questo articolo | 105945 | 04479 | 319236 |
|---|---|---|---|
| grade ACS reagent | grade ACS reagent | grade certified reference material, TraceCERT® | grade - |
| agency reag. Ph. Eur. | agency - | agency - | agency - |
| vapor pressure <0.00001 Pa ( 50 °C) | vapor pressure - | vapor pressure - | vapor pressure - |
| form solid | form powder | form - | form liquid |
| loss ≤1% loss on drying, 105°C | loss - | loss - | loss - |
| color white to yellow-white | color - | color - | color colorless |
Applicazioni
- 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).
Risultati analitici
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 %
Avvertenze
Danger
Indicazioni di pericolo
Consigli di prudenza
Classi di pericolo
Carc. 1B - Muta. 2 - Repr. 2 - Skin Irrit. 2
Codice della classe di stoccaggio
6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
Classe di pericolosità dell'acqua (WGK)
WGK 3
Punto d’infiammabilità (°F)
Not applicable
Punto d’infiammabilità (°C)
Not applicable
Elenchi normativi
Forniamo informazioni su eventuali restrizioni prevalentemente per i prodotti chimici. Per altre tipologie di prodotto siamo in grado di fornire soltanto informazioni limitate. Nessuna segnalazione significa che nessuno dei componenti è citato in un elenco. È dovere dell’utilizzatore assicurarsi che il prodotto venga impiegato in maniera sicura e a norme di legge.
EU REACH SVHC Candidate List
EU REACH Annex XVII (Restriction List)
Certificati d'analisi (COA)
Cerca il Certificati d'analisi (COA) digitando il numero di lotto/batch corrispondente. I numeri di lotto o di batch sono stampati sull'etichetta dei prodotti dopo la parola ‘Lotto’ o ‘Batch’.
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Contenuto correlato
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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