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Illustrations of that summer's memoriesMany illustrator had created illustrations about Summer Memories. For example, the Korean illustrator Jina's work depicted the summer in her memory. There were girls, green plants, Jiangnan scenery and other elements in the picture, showing the warmth, beauty and vitality of summer. There was also an illustrator who created illustrations for the band's summer. He used simple lines and colors to capture the band's characteristics and show the happy atmosphere of the show. These illustrations also became part of the summer memories.
While waiting for the TV series, he could also read the exciting content related to this site!
What is the type of chemical reaction?The following are some types of color reactions in medicinal chemistry:
1. ** Alkaloid-related color reaction type **
- The reaction of the reagent of bismuth-potassium-iodinate would produce a yellow to orange-red, shapeless deposit.
- The mercury-kalium iodate reagent reacted, producing a white deposit.
- The reaction of the iodine-ki reagent resulted in the formation of a reddish-brown, shapeless deposit.
- When the reagent reacted, a pale yellow or grayish-white crystalline deposit appeared.
- The saturated picric acid reagent reacted, producing yellow precipitations or crystals.
- The reaction of the Reyer's salt reagent would produce a red deposit or crystal.
2. ** Color reaction type related to flavanoids **
- The reaction of sulfuric acid and calcium powder (or copper powder) was the most commonly used color reaction for flavanoids, but there was no such color reaction for chalcones, orange ketones, and lecathanes. When this reaction was carried out, only the addition of sulfuric acid would cause the color of the cyanidins, some orange ketones, and chalcones to turn red, so a blank control test was needed.
3. ** Color reaction type of Quinones **
- Feigl reaction, characteristic is purple, can identify the effectiveness of the whole of the aromatic, naphazene, phenanthrene, indigo.
- Leucomarine blue reaction, showing blue color, mainly effective on the benz, napthoqun.
- Bornträger reaction, red and purplish red, mainly used to identify p-hydryl indoles.
- Kesting-Craven reaction, blue-green, blue-purple, can be used to identify aromatic, epothoquan (the ring of the quin has an unsubstituted position of the hydrogen) anthrone.
- It can react with metal ions (such as lead or lithium), and has different color reactions for the structural lactones, such as orange, orange-red, purple-red, blue, etc.
- The reaction is characteristic of purple, green, blue, and gray, which can be used to identify the indigo group (a-methylethylalcohol, ortho-diol).
- The iron oxamate reacted to form a red complex.
- Ferric acid reacted, producing a blue-green color.
- It is blue in color and can be used to identify the absence of substitution at the position of the para-position of the alcoholic group and to determine whether there is a substitution group at the C - 6 position of the coumarins (it can be first digested to open the lactone ring to form a new alcoholic group, and then identified by the Gibbb's reaction or the Emerson reaction. If it is a positive reaction, it means that there is no substitution at the C - 6 position).
4. ** Other common types of color reactions (may involve organic substances in medicinal chemistry)**
- The mixture of the compounds and FeCl3 solution turned purple.
- The protein (with a aromatic ring) and concentrated sulfuric acid show yellow.
- Amylum and Iodine appear blue.
- The color reaction of acid and base indicators such as litmus and methylethalin with acidic or basic substances.
- Sulfur dioxide caused the color of the fuchsin solution to fade.(This fading reaction can also be seen as a special color-related reaction. In medicinal chemistry, some thiur-containing drugs may involve related principles.)
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The first stretch of the kindergarten broadcast gymnasticsAs for the first stretching exercise of the kindergarten broadcast gymnastics, the reference materials did not provide a description of the unique movements specifically for the stretching exercise of the kindergarten broadcast gymnastics, so it was impossible to answer accurately.
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