Universal Indicator

pH 4-10 indicator

Universal indicator is a versatile pH indicator commonly used in secondary school laboratories. It is a mixture of several indicators that can display a wide range of colors depending on the pH of a solution. Students can use universal indicator to visually determine the acidity or alkalinity of a substance by adding a few drops and observing the color change. The resulting color can be compared to a pH color chart to estimate the pH value. Universal indicator is ideal for more precise pH measurements and is often used in titrations and other chemistry experiments, enabling students to explore the pH scale and understand the concept of acidity and alkalinity in greater detail.

通用指示劑是中學實驗室常用的多功能pH指示劑。 它是多種指示劑的混合物，可以根據溶液的 pH 值顯示多種顏色。 學生可以使用通用指示劑，透過滴幾滴並觀察顏色變化來直觀地確定物質的酸性或鹼性。 所得顏色可與 pH 比色表進行比較，以估計 pH 值。 通用指示劑非常適合更精確的 pH 測量，通常用於滴定和其他化學實驗，使學生能夠探索 pH 範圍並更詳細地了解酸度和鹼度的概念。