2-pyridinecarbonitrile, 6-amino-

2 + - to its methyl ether, it is also an organic compound. This substance has the common property of ether, and the molecular structure is connected by ether bonds. At room temperature, it is mostly liquid and has a certain volatility. Its boiling point is relatively low, lower than that of water and other substances, due to weak intermolecular forces. And because of its structural characteristics, it shows good solubility in organic solvents and can be miscible with many organic reagents, but its solubility in water is poor.
6 + -hydroxyl is also a common group in organic chemistry. From the perspective of physical properties, compounds containing hydroxyl groups can form hydrogen bonds, which often cause their boiling points to be higher than similar compounds without hydroxyl groups. For example, ethanol, due to the presence of hydroxyl groups, has a higher boiling point than ethane. Hydroxyl groups are hydrophilic, so small molecule compounds containing hydroxyl groups are mostly soluble in water, such as methanol and ethanol. However, with the growth of the carbon chain, the hydrophobic hydrocarbon group becomes stronger and the solubility decreases. And the viscosity of hydroxy compounds is often higher, which is also related to hydrogen bonds. The presence of hydrogen bonds enhances the interaction between molecules and increases the flow resistance. In addition, the presence of hydroxyl groups also affects the physical properties such as the density of substances. Usually, the density of hydroxy-containing compounds is slightly larger than that of hydrocarbons with the same number of carbon atoms.

2 + -To its ammonium salt, this substance is a compound containing ammonium ions ($NH_ {4 }^{+}$）. Ammonium salts have many properties, most of which are white crystals and have good solubility in water. When heated, ammonium salts are easy to decompose. For example, ammonium chloride ($NH_ {4} Cl $) decomposes into ammonia ($NH_ {3} $) and hydrogen chloride ($HCl $) gas when heated. Ammonium salts can react with bases to generate ammonia gas, which is often used to test ammonium ions. For example, mixing ammonium salts with sodium hydroxide for heating produces ammonia gas with a pungent odor, which can turn moist red litmus paper blue. < Br >
6-Hydroxy-chemical properties, hydroxyl ($-OH $) is a common functional group. Compounds containing hydroxyl groups have various properties. If they are alcoholic hydroxyl groups, alcohols can react with active metals such as sodium to replace hydrogen, and ethanol reacts with sodium to form sodium ethanol and hydrogen. Alcohols can also undergo elimination reactions, under certain conditions, the hydroxyl groups are removed from hydrogen atoms on adjacent carbon atoms to form unsaturated bonds. When the hydroxyl group is attached to the phenyl ring, this is a phenolic hydroxyl group. Phenols are weakly acidic and can react with bases such as sodium hydroxide. Phenols can also undergo substitution reactions with bromine water. For example, the reaction of phenol with bromine water will introduce bromine atoms at the adjacent and para-positions of the phenyl ring hydroxyl group to form a white precipitate of tribromophenol. In addition, dehydration reactions can occur between compounds containing hydroxyl groups to form compounds such as ethers or esters.

The main use of 6 + -hydroxy- refers to the use of six plus hydroxyl groups.
Hydroxyl groups are chemical groups. It is widely used in many fields. In the field of organic chemistry, compounds containing hydroxyl groups are common. Alcohols, such as ethanol, have many properties because they contain hydroxyl groups. Ethanol can be used as a beverage and as a disinfectant in the medical field, all relying on hydroxyl groups to participate in chemical reactions.
In pharmacies, many drug molecules contain hydroxyl groups. This group can change the polarity of compounds and affect the absorption, distribution, metabolism and excretion of drugs in organisms. In many antibiotics, analgesics and other drugs, the hydroxyl group is a key structural part, which has a great impact on the activity and curative effect of the drug.
In the field of polymer materials, the hydroxyl group also has important uses. Some polymers need to contain hydroxyl monomers. Such as polyester synthesis, diol-containing hydroxyl groups and dibasic acids are polymerized to form polyesters. Such polyesters are widely used in textiles, packaging and other industries.
In addition, hydroxyl groups also play a key role in living organisms. Sugar substances contain multiple hydroxyl groups, which are of great significance for life-sustaining activities. Glucose is an important energy-supplying substance for organisms, and its hydroxyl groups participate in many biochemical reactions, such as glycolysis, tricarboxylic acid cycle, etc., to provide energy for cells.
In addition, hydroxyl groups are also used in coatings, adhesives Hydroxy-containing resins can react with curing agents to form a strong coating or adhesive layer to improve material properties.
In short, due to its unique chemical properties, hydroxyl groups are indispensable in many fields such as chemical, pharmaceutical, materials, and biology, and promote the development of various industries.

To make a 2 + -Yang stone, a 6 + -Yin-based tool, the method is as follows:
The method of quarrying Yang stone, you need to go to the deep mountain to the sun, looking for the one with warm texture, yellowish color and delicate texture. This stone absorbs the yang energy of heaven and earth, and has been precipitated over the years. It is the best choice for making yang stones. After picking, wash it with clean water, remove the dust on its surface, and then expose it to the hot sun for seven, seven, forty-nine days to help its yang energy glow.
As for the yin foundation, it is suitable for searching in the shade of the valley. Its object should have a cool feeling, the color is blue, and the texture is dense. To obtain it, first soak it in mountain spring water for three days and three nights to remove its miscellaneous gas. Then, place it in a cool and ventilated place to dry in the shade, so that no sunlight can be seen.
When making utensils, first place the yang stone in a special furnace, slowly bake it with a gentle fire, wait for it to heat up slightly, and then gradually increase the heat, so that the whole body of the yang stone is translucent and looks like flowing gold. At this time, carefully place the treated yin foundation on the yang stone, and the two slowly blend. During the process, the heat and time need to be strictly controlled. If the heat is too strong, the two will be easily destroyed; if the heat is insufficient, it will be difficult to fuse.
After fusing, take it out and place it in a special mold to shape. The shape of the mold depends on the needs of the utensils made. After it is cooled and formed, it is carefully polished with fine sandpaper to make its surface as smooth as jade.
Then, place the made utensils in a place where the spiritual energy gathers, such as by the bank of a spiritual spring or by the fairy grass, so that they can absorb the spiritual energy of heaven and earth again. After ninety-nine and eighty-one days, you are done. The 2 + -Yang stone and 6 + -Yin foundation utensils made in this way may have magical effects and can be used for cultivation, qi adjustment and other matters. However, the production process is complicated, and those who need to make utensils are careful. If there is a slight mistake, all previous efforts will be wasted.

When you are looking for its alchemy sand, you need to check its quality. The high-grade alchemy sand is as red as a chicken crown, and the quality is pure but not miscellaneous. This is the best choice for medicine and alchemy. When harvesting, choose a good time to avoid wind, rain and lightning, lest its spiritual energy be disturbed.
As for the storage and transportation of hexa-hydroxyl -, there are also many points to pay attention to. The storage place should be dry and cool, and it should not be damp. If moisture enters, it will easily deteriorate. And it must be kept away from fire sources. These things are mostly flammable, and if they are not careful, they will cause disasters.
When transporting, you must use a sturdy tool to prevent it from being damaged by collision. Those who carry it should be careful, familiar with its nature, and do not act recklessly. If you encounter hot weather, you should pay more attention to cooling to prevent it from decomposing due to heat.
All these things are related to the quality and safety of Dansha and hexahydroxy. Those who handle it should not be ignored, and they should be treated with awe and prudence in order to ensure its effectiveness and avoid its harm. If you act negligently, you should not be careless.