319236

Phenolphthalein solution

0.5 wt. % in ethanol: water (1:1)

• 동의어(들): C₂0H₁₄O₄; Phthalin;3,3-bis(4-hydroxyphenyl)-2-benzofuran-1-one
• 실험식(Hill 표기법): C₂₀H₁₄O₄
• CAS Number: 77-09-8
• Molecular Weight: 318.32
• Beilstein: 284423
• MDL number: MFCD00005913
• UNSPSC 코드: 12171500
• PubChem Substance ID: 24859151
• NACRES: NA.47

속성

• 형태: liquid
• Quality Level: 200
• 농도: 0.5 wt. % in ethanol: water (1:1)
• 기술: titration: suitable
• 색상: colorless
• visual transition interval: 8.0-10, colorless to red
• mp: -35 °C
• density: 0.918 g/mL at 25 °C
• λmax: 552 nm
• 응용 분야: diagnostic assay manufacturing; hematology; histology
• 저장 온도: 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

설명

일반 설명

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.

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.

애플리케이션

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

안전성 정보

• 픽토그램: GHS02,GHS07
• 신호어: Warning
• 유해 및 위험 성명서: H226,H319
• 예방조치 성명서: P210 - P233 - P240 - P241 - P242 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Flam. Liq. 3
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 3
• Flash Point (°F): 75.2 °F - closed cup
• Flash Point (°C): 24 °C - closed cup
• 개인 보호 장비: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter