Methyl Red

C15H15N3O2, ACS grade, CAS : 493-52-7

Methyl red is a commonly used dye in secondary school science studies, particularly in chemistry experiments. It is an acid-base indicator that changes color based on the pH of a solution. Methyl red transitions from red in acidic solutions to yellow in basic solutions. This property makes it useful in acid-base titrations and pH determination experiments. Students can observe and interpret the color changes to determine the endpoint of a titration or the pH of a solution. Methyl red's simplicity and effectiveness as a pH indicator make it a valuable tool for teaching acid-base concepts in secondary school education, helping students understand the principles of pH and acid-base reactions.

甲基紅是中學科學研究中常用的染料，特別是化學實驗。 它是一種酸鹼指示劑，會根據溶液的 pH 值改變顏色。 甲基紅在酸性溶液中從紅色轉變為鹼性溶液中的黃色。 此特性使其可用於酸鹼滴定和 pH 測定實驗。 學生可以觀察並解釋顏色變化，以確定滴定終點或溶液的 pH 值。 甲基紅作為 pH 指示劑的簡單性和有效性使其成為中學教育中酸鹼概念教學的寶貴工具，幫助學生了解 pH 和酸鹼反應的原理。