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| 产品名称 : | PH1862 | 甲基红指示剂 Methyl Red Indicator |
| 产品品牌 : | 飞净 PHYGENE |
甲基红是常用的酸碱指示剂之一，常浓度为0.1%乙醇溶液，pH4.4（红）-6.2（黄）。也用于原生动物活体染色。
变色范围
甲基红的变色范围是PH4.4~6.2,其pH值在4.4~6.2区间时,呈橙色；
其pH值≦4.4时,呈红色,因是靠近酸性强的一边时的颜色,故又称之为酸色；
其pH值≧6.2时,呈黄色，因是靠近碱性强的一边时的颜色,故又称之为碱色；
运输与存储：常温运输与保存,有效期12个月。
Methyl red (2-(N,N-dimethyl-4-aminophenyl) azobenzenecarboxylic acid), also called C.I. Acid Red 2, is an indicator dye that turns red in acidic solutions. It is an azo dye, and is a dark red crystalline powder. Methyl red is a pH indicator; it is red in pH under 4.4, yellow in pH over 6.2, and orange in between, with a pKa of 5.1.[2] Murexide and methyl red are investigated as promising enhancers of sonochemical destruction of chlorinated hydrocarbon pollutants. Methyl red is classed by the IARC in group 3 - unclassified as to carcinogenic potential in humans.
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