# 酸碱指示剂 - Acid-Base Indicators

酸碱指示剂的交互式可视化 - 探索pH颜色变化、多指示剂滴定（石蕊、酚酞、甲基橙）、pH到颜色映射和指示剂变色范围

> 标准页面: https://elysiatools.com/zh/visualizations/acid-base-indicators

- **分类:** Chemistry

## 概述

Interactive visualization of acid-base indicators - Explore pH color changes, titration with multiple indicators (litmus, phenolphthalein, methyl orange, bromothymol blue, methyl red, thymol blue), pH-to-color mapping, indicator transition ranges (pH = pKa ± 1), indicator equilibrium (HIn ⇌ H⁺ + In⁻), Henderson-Hasselbalch equation (pH = pKa + log([In⁻]/[HIn])), color interpolation using sigmoid function, titration scene animation with burette droplets, pH meter display, multiple indicators comparison grid, pH color spectrum (0-14), color transition range visualization, and comprehensive educational content covering indicator mechanism, equilibrium principles, common indicators and their ranges, choosing the right indicator for different titration types (strong acid-strong base, weak acid-strong base, strong acid-weak base), pH calculation during titration, real-world applications in volumetric analysis, pH paper, biological systems, food industry, environmental testing, and universal indicator. Features adjustable parameters for pH value (0-14), acid/base concentration, acid volume, base volume, titration speed, indicator selection, display options (show all indicators, show transition range, animate color changes), and quick pH presets (strong acid 0, weak acid 3, neutral 7, weak base 11, strong base 14). Perfect for chemistry education, laboratory training, and understanding acid-base titration principles

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