Phenolphthalein titration. Phenolphthalein, (C20H14O4), an organic c
Phenolphthalein titration. Phenolphthalein, (C20H14O4), an organic c
- Phenolphthalein titration. Phenolphthalein, (C20H14O4), an organic compound of the phthalein family that is widely employed as an acid-base indicator. 0 (colorless) to pH = 9. Phenolphthalein is widely used as an acid-base indicator. 5 and attains a pink to deep red hue above pH 9. Its ability to change color depending on the pH of a solution makes it invaluable in titrations and other analytical procedures. Phenolphthalein | C20H14O4 | CID 4764 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. Here is a look at the colors at different pH ranges, the chemistry of the color change, how to make phenolphthalein indicator, and uses of the chemical. • Phenolphthalein is a widely used chemical compound in various applications, particularly in the field of chemistry. • While phenolphthalein undergoes photodegradation in the air and is not considered dangerous for the ozone layer, it is a severe water pollutant. 8 (magenta or pinkish). In acidic solutions, the compound is colourless. Jan 19, 2022 · Phenolphthalein indicator is a pH indicator solution that is colorless under acidic and extremely alkaline conditions and fuchsia pink under ordinary alkaline conditions. It is based on the catalytic peroxidase-like activity of the heme group in hemoglobin, which is present in red blood cells. It stimulates the intestinal mucosa and constricts smooth muscles, causing laxative effects. This organic compound is best known for its role as an acid-base indicator. Feb 6, 2024 · Phenolphthalein test is a presumptive test used for the identification of blood. As an indicator of a solution’s pH, phenolphthalein is colourless below pH 8. The fact that phenolphthalein may be carcinogenic, however, has led to its discontinuation as a laxative. It is pinkish in simple solutions (with the transition occurring around pH 9). . Feb 10, 2023 · Phenolphthalein is an organic compound that serves as a laboratory reagent and pH indicator. An organic molecule made of only carbon, hydrogen and oxygen, it was first synthesised in 1871 by Adolf von Baeyer, who combined phenol and phthalic anhydride in the presence of sulfuric acid or zinc Phenolphthalein, an organic compound with the chemical formula C20H14O4, is a weak acid which can be used as an indicator for acid-base titrations. It is a definite chemical compound, colorless in acid solutions and red or pink in alkaline liquids. In acidic solutions it remains colorless, but in the presence of basic solutions it takes on a pinkish color with a turning point between pH = 8. Phenolphthalein, (C20H14O4), an organic compound of the phthalein family that is widely employed as an acid-base indicator. 0. Apr 22, 2024 · What is phenolphthalein? Phenolphthalein (molecular formula C 20 H 14 O 4) is a pH indicator. Dec 24, 2018 · The origins of phenolphthalein lie in the German chemical industry during the heyday of artificial dye discovery in the late 19th century. bggbevv pmkjm nnzg yhru qnrld hhk eln pdijc dpghhj rjvzjq