Encara no tenim significats per a "red litmus".
1This sublimate will render blue a slip of red litmus paper.
2This bath should be alkaline, and you can test it with red litmus paper.
3So easy to paste some red litmus over a red flower-nearthe bed, of course.
4Bases always turn red litmus paper blue.
5Carbonate of baryta loses its carbonic acid at a red heat, becomes caustic, and colors red litmus paper blue.
6In the pure state, the alkaline earths are caustic, cause red litmus paper to become blue, and are more or less soluble in water.
7Hold, for a minute or longer, a narrow strip of red litmus paper in the mouth, noting any change in the color of the paper.
8"Back again," sang out Jack as the red litmus changed to blue.
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