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ESSENTIAL OIL

ESSENTIAL OIL:

The product is obtained from resin processing, which is a transparent, colorless liquid, characterized by no residue and water. A mixture of monotecpen hydrocarbons having the general formula C10H16. In addition, there is usually a small amount of setquitain and acid derivatives of terpenes. Typical chemical indicators of commercial TDT: specific gravity (at 25oC) 0.8570 -0.8650 g / cm3; The refractive index with D rays at 20oC is 1.4620 - 1.4720. TDT is used as a solvent in the paint industry; As a raw material for the synthesis of longan, tacpin hydrate, tecpineol, pesticides. In Vietnam, TDT is divided into two types: I and II.

RESIN:

sticky, viscous, opaque white, obtained when the pine resin is grown. NT is a solid solution of resin acids (71 - 79%) dissolved in a mixture of terpenes (14 - 20% pine oil), together with water and other impurities. The resin in the pine tree is contained in plastic tubes, where it is cut off. NT is exploited in 3 modes: extract, harvest 1 to 4 years before felling; Exhausted, exploited 5 - 7 years before felling trees; Cultivating, exploiting more than 8 years before cutting, raising trees for long-term use. There are three methods of extracting NT: cavity hole is the old method, now abandoned; rectangular hedgerows on pine resin (Pinus merkusiana); V-shaped cutters, openings and extracts of pine resin on Pinus khasya, Pinus massosiana. NT is used for plating, making ink, or for the production of flavorings (the main ingredient of NT is often called NT) and fiber. Xt. Rosin.

TANIN:

(A)  a group of polyphenols that are extinct in the plant, which is capable of forming stable bonds with proteins and some naturally occurring polymeric compounds (cellulose, pectin ). The first (since the late 18th century), T is the name of aqueous solution extracted from many plants, used to tan. At present, T is the name of the naturally occurring compounds that contain a large number of phenolic hydroxyl groups and has molecular masses between 500 and 3,000. The physics of T is complex and heterogeneous. T can be divided into two groups: a) flavanol derivatives, also known as condensed T; b) T is hydrolysable (this group is more abundant), which are esters of gluutide, usually glucose with one or more trifluorobenzoic acid. The formula given here is a T called corilagin. The experimental form of corilagin is C27H24O18; At 210 - 215oC it decomposes most of the pyrogallol and CO2. T in shell, in wood, in leaves and in the fruit of plants such as oak, tiger, parrot, etc. T is used for tanning, as a dye in cotton dyeing; In medicine, used as a treatment for burns (applying aqueous solution of T to the burn, the skin will heal), detoxify (because T can be combined with toxins secreted by bacteria, as well as with toxic substances Other such as silver salts, mercury salts, lead salts