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Methyl Orange

An acid-base indicator that turns red in a solution below three on the pH scale and yellow between pH of 4.4 and 7.0.
See Also: Base Alkali Alkalinity Alkalinity Tests Hydroxide Alkalinity Detergent Methyl Orange Alkalinity Phenolphthalein Phosphate Soap Alkalinity Methyl Orange Alkalinity Phenolphthalein