Hello, Can you identify Pterostilbene?

1.Density discrimination.

According to the physical knowledge, the density of water is less than that of red sandalwood, and if the wood to be identified is small-leaved red sandalwood, the wood will sink into the water. If it can sink in the water, then you can start the next step of identification.

2.Scratch identification.

Find an A4 piece of paper and a piece of wood that needs to be identified. Scratch the small piece of wood on the paper, if the piece of wood is small-leaved rosewood, then its scratch is red.

3.Alcohol discrimination.

Take a clear bottle and put half of the liquor in the bottle. When wood chips are put into the wine, if they are small-leaved red sandalwood, the chips will turn into pink-like particles and form a viscous liquid of water or alcohol. In addition, after soaking in alcohol with rosewood, the leachate is purple, which can be used to dye cloth and is not easy to fade.

This is the most accurate way to identify rosewood.

4.Odor discrimination.

When the small-leaved red sandalwood rubs against the object, it will have a faint fragrance. It smells more like the smell of burning wood, and some smell like inside a temple. Scrape with a knife or rub it during identification.

But if the aroma is too strong or not smelled at all, then it is half of it is not Pterostilbene.

5.and the distinction of blood sandalwood.

How to distinguish the authenticity of the small-leaved red sandalwood is a question worth discussing, and the wood most similar to the small-leaved red sandalwood wood is blood sandalwood, the two plants are intuitively very similar, so it is difficult to distinguish from ** alone, but ** is ten times different. The new blood sandalwood material is bright red, and it is dark red for more than ten days, and there is no fluorescent reaction. The color of the new rosewood is similar to that of an orange-red, and over time it will oxidize to a deep purple or blackish-purple color with dark streaks.

Rosewood microphylla is the best of wood, which is very valuable and at the same time very high. When choosing furniture or bracelets with red sandalwood, you should choose carefully and don't be deceived.

Yes. Pterocarpus is a tropical plant, growing in Southeast Asia, a sun-loving plant, not tolerant to low temperatures, and seedlings are prone to frost damage below 3 degrees. Sandalwood microphylla has a well-developed root system and nodules, which can fix nitrogen, and the requirements for soil are not strict.

Therefore, whether it is potted or planted in a forest, we must pay attention to these habits of small-leaved red sandalwood. Put it in a sunny place.

1. Look at the colorIf you ask the players, what color is the small leaf red sandalwood you usually see? In the impression that the small-leaved red sandalwood should be red, and it is bright red, but we rarely see it, and the common one is purple-red, or even purple-black, this is because the small-leaved red sandalwood we have in hand is the small-leaf red sandalwood that has been oxidized for a long time, and the small-leaf red sandalwood is bright red money only when the material is opened, orange-red. 1. Scarlet scarlet is a relatively common color of small-leaved red sandalwood, which is a variety that is not oily, has little specific gravity, and is not too good hardness.

2. Dark purple can reach deep purple, which means that it has been oxidized for a period of time and has changed color by itself, but it needs to be very oily, very dense, and has a large proportion to do it. 3. Purple blackDon't look at the purple black does not look so bright, but it is a very rare existence in the small leaf red sandalwood, because it can reach purple black, indicating that the wood is very compact, the oil is extremely high, and it can also show the luster of the horn after oxidation, so the small leaf red sandalwood is a fine product. 4. Purple yellow Many players say that they have never seen purple yellow small leaf red sandalwood, in fact, the general wild small leaf red sandalwood is not purple yellow, only the artificial small leaf red sandalwood is purple yellow, such small leaf red sandalwood, because of artificial cultivation, the growth rate is relatively fast, and all aspects are incomparable with wild small leaf red sandalwood.

Second, look at what is the cow hair pattern, that is, the nutrient transport duct of the small leaf red sandalwood, when cutting the small leaf red sandalwood, the catheter is cut longitudinally, it forms the cow hair pattern, according to the different shapes, it can be roughly divided into watercress pattern, curve pattern, straight line and gall pattern, according to different cow hair lines, you can judge the density of the small leaf red sandalwood, so as to judge the quality of the small leaf red sandalwood. Third, look at the brown eye and the cow hair pattern, is also a form of embodiment of the catheter, when the small leaf red sandalwood is cut, the catheter is cut horizontally, that is, brown eye, under normal circumstances, the brown eye of small leaf red sandalwood can be seen with the naked eye, and the smaller the brown eye, the better the density of the small leaf red sandalwood, especially the mud, the brown eye has been invisible, the density is better. Fourth, look at Venus for Venus, in fact, most of the small leaf red sandalwood is not with Venus, Venus small leaf red sandalwood is only a small part, but we can judge the quality of small leaf red sandalwood from Venus, under normal circumstances, the formation of Venus takes many years, so the small leaf red sandalwood with Venus is enough to show that the growth time is relatively long, so the natural oiliness and hardness, density are good.

Fifth, look at how the oiliness of the oily small-leaved red sandalwood directly determines the quality of the later pulp, so when identifying the small-leaved red sandalwood, we must look at the oiliness, and see the oiliness is generally judged from the color, specific gravity, etc., or you can quickly rub it with your fingers when you buy it to see if there is a very bright luster, if there is, it means that the oiliness is not bad. Sixth, when it comes to density, in fact, this is impossible.

It is called Burmese pear bracelet, and the scientific name of the material is red sandalwood, which is mainly produced in Myanmar, Thailand and Laos. Rosewood macrocarpica, commonly known as Burmese pear, belongs to the family Pterocarpaceae, and is a tall deciduous tree species. According to the classification of China's "Mahogany" national standard (GB T18107-2000), rosewood, scattered porous wood, and semi-ring porous wood tend to be obvious.

The growth rings are quite obvious. Air-dry density 0 80 .

There is white like glue that may be waxed during processing.

It doesn't look like it, it should be other red sandalwood.

1. Look at the texture of the small leaf red sandalwood because of the growth is extremely slow, so the density is quite high, in the wood grain formed a little bit like cow hair general texture, we call this unique pattern "cow hair pattern", as long as you look carefully, you will be able to find the cow hair pattern. 2. The weight of rosewood is fine, the weight is very heavy, and it sinks when it enters the water. Friends who have small leaves of red sandalwood at home can take the pot water to test.

3. One of the most common ways to identify alcohol is to use alcohol, scrape off some rosewood chips, put them in alcohol, and the alcohol will turn burgundy. 4. Look at the colorIn the sandalwood family, only red sandalwood and ebony contain pigments, so they can be identified by scratches on white cardboard and alcohol wiping marks. If there are no traces, the item is not red sandalwood at all, and if it is rusty red, it means that the item is red sandalwood.

There are many other identification methods.

How to identify Pterostilbe? Rosewood microphylla is a more important variety in that literary play. Without a certain amount of expertise, it's hard to tell the difference.

1. Take a piece of wood and scratch it on white paper, if it is sandalwood and red sandalwood, there are purple-red scratches, and use the same strength to scratch the second time and ...... the third time, the scratch fades to disappear; If there are scratches, proceed to the next step.

2. Take the sawdust and put it into a glass filled with water (the ratio of sawdust to water: the volume ratio is about 1:3-1:

10) If it is sandalwood rosewood, the top layer of water can be seen after 12 hours (visual effect: the top layer of water and the most obvious near the glass wall) has blue oil-like fluorescence, and the fluorescence is more obvious after 24 hours, this step is mainly used to exclude other sorrel wood and non-red sandalwood wood such as Lu's black sandalwood; If there is fluorescence, proceed to the next step.

3. Observe the color of the sawdust water leaching solution in the previous step. If it is sandalwood, red sandalwood is purple red (the depth of color is closely related to the part of the material, the amount of water and the length of soaking time); If it's fuchsia or not good, it's not sure to move on to the next step.

Fourth, look at the distribution of pipe holes on the cross-section. If it is sandalwood and red sandalwood, the diameter of the tube hole in the whole growth wheel is slightly equal and evenly distributed; The cross-section can be cut with a sharp knife, it is best not to return the knife, ** can be coated with some water, it is best to use a ten-fold magnifying glass or a higher magnifying glass to observe; If the distribution is more uniform or not good, it is certain to move on to the next step.

Fifth, look at the growth ring. The growth wheel was observed in the cross-section, and if it was sandalwood and red sandalwood, the growth wheel was not obvious; If the growth rings are not obvious or not good, be sure to continue with the following four steps.

Sixth, the surface color of the kanban. If it is sandalwood rosewood, the new profile is orange-red, and for a long time, it is dark purple or black-purple, often with light color and purple-black stripes.

7. Smell the aroma. If sandalwood red sandalwood has a very faint fragrance when rubbing with objects, it has a very weak fragrance (like sandalwood fragrance, but not the same as the burning incense we smell in our daily life), and the smell is very strong when filing with a file and a table saw.

8. Look at the texture. If it is sandalwood and red sandalwood, the texture is staggered, and some parts are curled. Look at the texture and color of the small leaf red sandalwood, cow hair pattern, Venus are typical characteristics of red sandalwood, but do not mistake the conduit of other wood for the cow hair pattern of red sandalwood, the key is to see more of the real thing, see more and find the feeling of identifying the red sandalwood pattern.

9. Look at the texture of the oil. If it is sandalwood, red sandalwood has an oily texture; If you can go through these four steps to move on to the next step.

10. 30x magnification of cross-section. This is the last step of personal identification, in the three sections of the wood, the cross-section provides the most abundant information, to carefully observe the characteristics of the cross-section, compared with the description and ** in the national standard "Mahogany", if it is sandalwood red sandalwood is consistent (if there is no condition this step can be omitted).

If you can pass the above 11 steps of the inspection can be determined that this wood is sandalwood rosewood, if any of these steps obviously do not meet the judgment is not sandalwood rosewood, if there are still doubts, you can take a sample (mahjong size) sent to the relevant departments (such as the Chinese Academy of Forestry) to do wood species identification.