Methyl Violet, 1 g

This 30 ml bottle of methyl orange solution is a common pH indicator; it turns red at 3.2 pH and yellow at 4.4 pH! Take a look at the table below to discover the methyl orange formula, density, shelf life, and more!

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This 30 ml bottle of phenol red is a pH indicator; it turns yellow below 6.8 pH & bright pink above 8.2 pH. Take a look at the table below to discover the phenol red pH indicator formula, density, shelf life, and more!

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Methyl red is a pH indicator; it turns pink/red at 4.4 pH & lower, yellow at 6.2 pH & higher, and orange in between. This 30 ml bottle is a 0.02 wt% aqueous solution. Look below to discover the methyl red formula & more!

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This set of 10 mineral specimens fluoresce into bright greens, reds, oranges and more under 'longwave' ultraviolet light, peaking at a 366 nm wavelength.

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Use this longwave ultraviolet "black light" flashlight to test minerals for fluorescence and investigate fluorescence around your house.

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