319236

Phenolphthalein solution

0.5 wt. % in ethanol: water (1:1)

• Synonim(y): C₂0H₁₄O₄; Phthalin;3,3-bis(4-hydroxyphenyl)-2-benzofuran-1-one
• Wzór empiryczny (zapis Hilla): C₂₀H₁₄O₄
• Numer CAS: 77-09-8
• Masa cząsteczkowa: 318.32
• UNSPSC Code: 12171500
• NACRES: NA.47
• PubChem Substance ID: 24859151
• MDL number: MFCD00005913
• Beilstein/REAXYS Number: 284423

Właściwości

• form: liquid
• Quality Segment: 200
• concentration: 0.5 wt. % in ethanol: water (1:1)
• technique(s): titration: suitable
• color: colorless
• visual transition interval: 8.0-10, colorless to red
• mp: -35 °C
• density: 0.918 g/mL at 25 °C
• λmax: 552 nm
• application(s): diagnostic assay manufacturing; hematology; histology
• storage temp.: room temp
• SMILES string: Oc1ccc(cc1)C2(OC(=O)c3ccccc23)c4ccc(O)cc4
• 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
• InChI key: KJFMBFZCATUALV-UHFFFAOYSA-N

Opis

General description

Phenolphthalein solution is a synthetic indicator. It is colorless in acidic and neutral conditions. Phenolphthalein gives pink color when added to a base, therefore it is considered as a base indicator.

Phenolphthalein is an acid base indicator. It is a weak acid, which is colorless in acidic solution and turns puce pink in alkaline solution. Phenolphthalein is genotoxic. It might cause oxidative damage and binds to estrogen receptors.

Application

Phenolphthalein solution has been used to measure total titratable acids by titration method.

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Informacja o środkach bezpieczeństwa

• Piktogramy: GHS02,GHS07
• Słowo ostrzegawcze: Warning
• Kody zagrożeń: H226,H319
• Ostrzeżenia: P210 - P233 - P240 - P241 - P242 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Flam. Liq. 3
• Klasa składowania: 3 - Flammable liquids
• Co się dzieje?: WGK 3
• Temperatura zapłonu (°F): 75.2 °F - closed cup
• Temperatura zapłonu (°C): 24 °C - closed cup
• PPE (środki ochrony indywidualnej): Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter