溴化钾（Potassium bromide），化学式为KBr，相对分子质量为119.00。
无色结晶或白色粉末，有强烈咸味，见光色变黄。稍有吸湿性。1g溶于1.5ml水，水溶液呈中性。相对密度为2.75(25℃)。熔点730℃。沸点1435℃。有刺激性。主要用于光谱分析，点滴分析测定铜及银，极谱分析铟、镉和砷，显影剂。
| 外观/Appearance | 白色颗粒或粉末/White Granule or Powder | ||
| 级别/Grade | 感光一级/The First Photo Grade | 感光二级/The Second Photo Grade | 优级品/Super Grade |
| 含量/Main Content | ≥99.5% | ≥99.5% | ≥99.0% |
| 干燥失重/Loss On Drying | ≤0.3% | ≤0.3% | ≤0.5% |
| 氯化物/Chloride | ≤0.2% | ≤0.2% | ≤0.5% |
| 溴酸盐/Bromate | ≤0.001% | ≤0.003% | ≤0.005% |
| 碘化物/lodid | ≤0.001% | ≤0.005% | ≤0.005% |
| 硫酸盐/Sulphate | ≤0.005% | ≤0.005% | ≤0.01% |
| PH值/PH Value(5%) | 6.0-7.5 | 5.5-7.5 | 5.5-7.5 |
| 砷/As | — | — | ≤0.0004% |
| 铅/Pb | ≤0.2ppm | ≤4ppm | ≤10ppm |
| 铁/Fe | ≤0.5ppm | ≤4ppm | ≤5ppm |
| 铜/Cu | ≤0.5ppm | ≤1.0ppm | ≤1ppm |
| 铋/ Bi | ≤0.2ppm | ≤0.5ppm | — |
| 透光度/Peroxide Solution Penetrability(250g/i) | 93~100(410nm) | 85~100(410nm) | — |
| 澄清度/Transparency Test | 合格/Qualified | 合格/Qualified | — |
| 氮/Ammonia | ≤15.0ppm | — | — |
| 色度/Peroxide Solution Chromaticity(250g/i) | ≤（15.0Black once） | — | — |
| 品名: | 溴化钾 |
|---|---|
| 用途: | 暂无数据 |
| 别名 | 溴化钾,标准液 |