What are the essential oil components of birch? Is birch solid wood?

Birch grows in the Northern Hemisphere and has a shiny surface and smooth texture. It is white, with the heartwood being a slightly pinkish ivory or grayish-yellow. It is not very durable in environments prone to rot and is more often used in the form of plywood. Today it is used for structures, marquetry, and internal framework construction. What are the essential oil components of birch? Is birch solid wood?

The main component of birch essential oil is acetylsalicylic acid, which is also the main component of aspirin.

Is birch solid wood? No. The bark of birch is smooth, contains resin, is white or variegated, has horizontal lenticels, and usually peels off horizontally in thin sheets; the bark of old trunks is thick with deep furrows, cracking into irregular fragments. The short, slender branches of young trees point upward, forming a narrow tower-shaped crown. Birch is not suitable for making solid wood flooring directly, but it can be used for engineered wood flooring.
Because birch has high mechanical strength, is elastic, has high moisture absorption, and tends to crack and warp when dried. It is not very durable in environments prone to rot, while the production materials for solid wood flooring require a hard texture, a wear-resistant surface, and good stability, all of which run counter to the properties of birch.

Furniture made from birch is easy to process, durable, has smooth cut surfaces, and has good painting and gluing performance. Birch is elastic, tends to crack and warp when dried, and is not wear-resistant. Birch growth rings are slightly distinct, the grain is straight and distinct, the material structure is fine, soft, and smooth, and the texture is relatively soft or moderate. The bark of birch is also relatively flexible and beautiful. Most manufacturers like to use birch as the core material for other furniture or as marquetry material.