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Merck
모든 사진(1)

주요 문서

1.07233

Supelco

Phenolphthalein

pH indicator, ACS, Reag. Ph Eur

동의어(들):

Phenolphthalein

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About This Item

실험식(Hill 표기법):
C20H14O4
CAS Number:
Molecular Weight:
318.32
MDL number:
UNSPSC 코드:
12171502
EC 인덱스 번호:
201-004-7
NACRES:
NA.21

product name

Phenolphthalein, indicator ACS,Reag. Ph Eur

Grade

ACS reagent

Quality Level

Agency

reag. Ph. Eur.
suitable for SM 2310
suitable for SM 2320

vapor pressure

<0.00001 Pa ( 50 °C)

형태

solid

손실

≤1% loss on drying, 105°C

색상

white to yellow-white

visual transition interval

8.2-9.8, colorless to red-violet

mp

263.7 °C

density

1.296 g/cm3 at 20 °C

벌크 밀도

350‑450 kg/m3

λmax

551-554 nm (buffer pH 9.8)

저장 온도

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

InChI key

KJFMBFZCATUALV-UHFFFAOYSA-N

유사한 제품을 찾으십니까? 방문 제품 비교 안내

애플리케이션



  • 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).



분석 메모

Identity (UV/VIS-Spectrum): passes test
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 %

픽토그램

Exclamation markHealth hazard

신호어

Danger

유해 및 위험 성명서

Hazard Classifications

Carc. 1B - Muta. 2 - Repr. 2 - Skin Irrit. 2

Storage Class Code

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable


시험 성적서(COA)

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