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 번호: 77-09-8
• Molecular Weight: 318.32
• Beilstein: 284423
• MDL number: MFCD00005913
• UNSPSC 코드: 12171500
• PubChem Substance ID: 24859151
• NACRES: NA.47

속성

• 양식: 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.[1] Phenolphthalein is genotoxic. It might cause oxidative damage and binds to estrogen receptors.[2]

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.[3]

애플리케이션

Phenolphthalein solution has been used to measure total titratable acids by titration method.[4]

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