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
The Indian in the Cupboard turn out to be Elsie, a widowed shop owner; Bert, a thief from Elsie's time; and Ted, a retired policeman. The final person, Sergeant Charlie Ellis, was a naval officer killed at the Battle of Trafalgar; his bundle contains only his uniform. These new people reveal that Jessica knew of the power of the key and the cupboard but only found out when she accidentally brought them to life for the first time. She brought them back and forth many times, just as Omri did with Little Bear. Just before she died, she told them all that they were being