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What is the amine?

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The product of one or more of the hydrogen atoms in the ammonia molecule substituted with a hydrocarbon group, called an amine. Depending on the number of hydrogen atoms to be substituted in the amine molecule, the amine can be divided into primary, secondary and tertiary amines. For example: CH3CH2NH2 (primary amine) (CH3CH2) 2NH (secondary amine) (CH3CH2) 3N (tertiary amine) A compound in which the hydrogen in the ammonia molecule is substituted with a hydrocarbon group. The amine may be a derivative selected from the group consisting of hydrogen in the ammonia molecule. Amines are widely found in the biological world and have a very important physiological activity and biological activity, such as proteins, nucleic acids, many hormones, antibiotics and alkaloids are all complex derivatives of amines, most of the clinical use of drugs is also amine or amine Of the derivatives, so master the nature of the amine and synthetic methods are to study these complex natural products
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UIV OLED N-light makes your child enjoy graffiti

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Before writing, Xiaobian to tell you a good news, that is,  UIV OLED N-light  in the Jingdong financial progress has reached 66%. In this, Xiaobian to thank everyone for their support, we hope to continue to support the late ah. Well, Closer to home, before Xiaobian mentioned, UIV OLED N-light has a lamp function, not only can be used as a baby light Oh Today, to talk about it as a function of painting lights it. First of all, give us some on the  UIV OLED N-light  as a painting display of the United States map. Let's see it first. Look at the figure, some people may wonder, why can it be used as  a painting light ? This is due to the designer's ingenuity. By the designer several times the details of the adjustment, the product front to increase the width of 0.3mm ring groove. We provide a certain size of the professional drawing paper (the user can also cut the size of their own paper), the paper can be easily folded into a square column into the produ
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The basic properties of anthracene

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Physical properties white flake crystals with light blue fluorescence or light yellow needles. (Pure white with purple fluorescence) The relative density of 1.25 (27 ℃), 1.283 (25 ℃), the melting point of 217, the boiling point of 342, the flash point of 196.1,121.1 (closed) (above are ℃), steam pressure 0.13kPa / 145 ℃ Insoluble in water, insoluble in ethanol and ether, more soluble in hot benzene. Stability stable Uses Used as a luminescent material (as in a scintillation counter), especially for coatings (eg for absorbing ultraviolet light). Used in the manufacture of anthraquinone and dyes. Also used as pesticides, fungicides, gasoline and other coagulant. Preparation or source  obtained in the final stage of the distillation of coal tar, which can be separated from the anthracene oil portion of the coal tar. Hazard Marking 20 (Corrosive) Derivatives anthralin anthraquinone
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Provincial People's Congress deputy director Du Huahong listened to Jiashan to promote the "small lift regulation" work report

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On the morning of April 18, Du Huahong, deputy director of the provincial government, led his party to the county to carry out supervision and investigation. The research group listened to Jiashan to promote the "small lift regulation" work report, the field visited the "small Sheng regulation" to cultivate enterprises Zhejiang Huaxing Optoelectronics Technology Co., Ltd., research group to learn more about the production and operation of the enterprise, the problems and the next Step development plan. Du Huahong, deputy director of the full affirmed the Huaxia Optoelectronics "small or regulatory" enterprises continue to research and innovation, the pursuit of excellence in product quality "craftsmen" spirit, the proposed enterprises to use new technology, new models, develop new products and enhance core competitiveness. For the county to deepen and improve the quality of the "small lift regulation" work, Du Huahong, dep
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The new marke OLED lighting is coming

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After 2016 years of rapid development, OLED horn has been fully sounded. Some time ago, Apple Google "looting" OLED, by virtue of their own advantages, OLED in the display area all the way popular. The current market demand for OLED is very strong, OLED screen by virtue of the advantages of self-luminous and flexible, in addition to the traditional mobile phone, TV, VR equipment, can wear intelligent equipment and car display, lighting and so on, many Domain product upgrades and development need OLED support. In the field of lighting, modern home lighting products will benefit from OLED technology. Not long ago the opening of the Taiwan International Lighting Technology Exhibition, Taiwan Industrial Research Institute to build the three major lighting theme pavilion, which " OLED lighting theme museum" in the Taiwan Ministry of Economic Technology to support the "wisdom of life home lighting" as the theme. One of the flexible design will be OLE
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Basic introduction of benzene

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Benzene  (benzene, C6H6) organic compounds, is the composition of the most simple aromatic hydrocarbons, at room temperature for a colorless, sweet transparent liquid, its density is less than water, with a strong aromatic odor. Combustible, toxic, IARC Class I carcinogens.  Benzene  is insoluble in water, soluble in organic solvents, itself can also be used as organic solvents. The chemical bond between carbon and carbon is between the single bond and the double bond, which is called the large π bond, and therefore has the properties of saturated hydrocarbon substitution reaction and the nature of the unsaturated hydrocarbon addition reaction. The nature of  benzene  is easy to replace, difficult to oxidize, difficult to add. Benzene is a basic raw material for petrochemicals.  Benzene  production and production of technical level is one of the national petrochemical development level of one of the signs.  Benzene  has a ring called benzene ring, is the most simple aromatic ring. Th
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Did you notice it? Indoor lighting must not use this way

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Family belongs to our private space, it gives people shelter, to provide us with the shelter, it has become an indispensable part of our lives. As a unique private space, there are a lot of people do not take care of it, that as long as the clean and tidy to keep. In fact, there are a lot of places we ignore. Today, Xiaobian to enumerate the use of indoor lighting a few big mistakes. 1. The lights are too small and the lights are too dark. Some families in order to save money, not willing to invest in the lighting, the average space for each installation of only one to two lamps, and the lamp wattage is relatively small, resulting in the overall darkness of the room, so that residents are prone to eye fatigue and produce Melancholy mood. 2. Lighting too much, light dazzling. Home is a private space, the use of functional requirements at night lighting should not be like shopping malls, specialty stores, restaurants, hairstyles, etc. as bright as bright, bright as
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