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Methyl red
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Number of views:
1000
Product serial number
Category
Chemical reagent
Number:
Brand:
Tianjin Kermel
CAS number:
493-52-7
Hazardous:
Non-hazardous chemicals
Specification:
Indicator IND 25g
Control:
Packing:
bottle
Quantity
-
+
Stock:
0
1
Description
技术指标
| 分子式 | C15H15O2N3 |
| 相对分子质量 | 269.30 |
| 最大吸收波长，λ1（pH4.5），nm 最大吸收波长，λ2（pH6.2），nm |
523～528 427～437 |
| 质量吸收系数/[L/(cm · g)] | α1(λ1, PH=4.5, 干样)≥130 α2(λ2, PH=6.2, 干样)≥70 |
| pH变色域 | 4.5（红）～6.2（黄） |
| 干燥失重 | ≤1.0% |
| 乙醇溶解试验 | 合格 |
| 灼烧残渣（以硫酸盐计） | ≤0.2% |
| HG/T3449-2012 | |
| 外观 | 有光泽的紫色结晶或红棕色粉末。 |
| 批号 | |
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