So the mixed indicator of phenolphthalein with alizarin red-methyl red could be used as the new indicator for the alkalify water determination.
采用百里蓝-、-混和指示剂的测试效果较差。
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It's actually a mix of two different pH indicators: bromocresol green and methyl red.
它实际上是两种不同 pH 示剂的混物:溴酚绿红。
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