Salicylic acid the OH group is "ortho" to the carboxyl group. It is also known as 2-hydroxybenzoic acid. It is poorly soluble in water (2 g/L at 20 °C). Aspirin (acetylsalicylic acid or ASA) can be prepared by the esterification of the phenolic hydroxyl group of salicylic acid with the acetyl group from acetic anhydride or acetyl chloride. Salicylic acid can also be prepared using the Kolbe-Schmitt reaction. Salicylic acid is used as a food preservative, a bactericidal and an antiseptic. Sodium salicylate is a useful phosphor in the vacuum ultraviolet spectral range, with nearly flat quantum efficiency for wavelengths between 10
Traditional Hausa medicine Traditional Hausa medicine The Hausa people are an African tribe originating from what is modern-day Nigeria. Their medicine is heavily characterized by Islamic influence from the East as well as traditional, African-style herbology, and religious practices which are still prevalent today. Many traditional healing methods such as religious and spiritual healing are often used alongside more modern scientific medicine among Hausa villages and cities. The bokaye and the yan bori are the most commonly known practitioners in Hausa society before the arrival of Islamic culture. The bokaye was an herbologist and subsisted on collecting and selling medical herbs and advice.