1. Avoid contact with air. Avoid contact with acid chlorides, oxygen, and acids.
2. Colorless and easy-flowing liquid, it will turn brown or deep red when exposed to sunlight or air. There is a bitter taste. It is miscible with water, but unstable in water, easily soluble in ethanol, ether, benzene and chloroform, and insoluble in petroleum hydrocarbons. Insoluble in alkanes.
3. Chemical properties: Furfuryl alcohol can reduce silver nitrate ammonia solution when heated. It is stable to alkali, but it is easy to resinize under the action of acid or oxygen in the air. In particular, it is extremely sensitive to strong acids and often catches fire when the reaction is intense. It appears blue when heated with a mixture of diphenylamine, acetic acid, and concentrated sulfuric acid (diphenylamine reaction).
4. Exist in flue-cured tobacco leaves, burley tobacco leaves, oriental tobacco leaves and smoke.
