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Li Bai even wrote in his poem to commemorate Xie Kangle when he went to Pengli Jingsongmen to observe the stone mirror, "The blue water may be mined, but the secret of gold cannot be discussed."

The fifth and sixth interpretations of gold essence: the moon and the sun.

When Zhou Wenwen saw this, he knew there was nothing to say, so he passed decisively and went to the next one.

However, I still have to talk about the source.

Volume 1 of the Beginner's Notes quotes Emperor Lanxi from He Tu: "The moon is the essence of gold."

Chen Tao of the Tang Dynasty wrote a poem in Tujiang when he was traveling: "The wild geese rise up from the broken sand and come out with golden spirit, and the ape in the lonely ridge returns home worried about the wood."

Ming Dynasty Tang style Xiaoliangzhou inscribed Wu Yuetang suite: "Everything is clear, the golden light shines on the ice of the jade pot."

The seventh explanation of Jinjing: Another name for chamomile.

When he saw the seventh explanation, Zhou Wenwen couldn't help but be stunned. After taking a second to recover, he thought about it and wrote it down first.

The source is still written by Yu Xin in Xiaoyuan Fu: "The clouds shade the yarrow trees, and the golden essence nourishes the autumn chrysanthemums."

Ni Fan noted and quoted Yu Hanfang: "Chamomile is picked on the ninth day of the ninth month and is called Jinjing."

Li Qiao, Duke of Zhao of the Tang Dynasty, who served as prime minister three times, also wrote in the chrysanthemum poem: "The jade rules are three autumn twilight, and the golden spirit blooms on the ninth day."

The eighth explanation of gold essence: refers to water essence, crystal, and the chemicals rose acid and rose acid.

Water essence, crystal source:

Wang Niansun and Sun Shuzheng of Guangya Shidi's "Water Essence" quoted Liu Zhen's Qinglu Fu of the Han Dynasty: "Based on the number of Wen Yao, the gold essence is on the plate."

The New Book of Tang Dynasty passed down to Ju Lan from the Western Regions: "When the gold essence comes out, you can cut the stone to get it."

Xuanzang of the Tang Dynasty, who was the prototype of the Tang Monk, recorded in Qu Langna's Kingdom of the Western Regions of the Tang Dynasty: "There are mountains and rocks, and there are many gold essences in them. You can get them by analyzing the rocks."

Chemical rose acid:

Gold essence, also known as p-rose acid, is a red orthorhombic bipyramidal crystal with metallic luster and decomposes at a melting point of 308310c.

Soluble in ethanol, insoluble in ether and chloroform, insoluble in water and benzene.

Industrial products are mostly yellow-brown flakes with dark green metallic cross-sections.

It is produced by heating a mixture of phenol, oxalic acid and sulfuric acid.

It can be used as an acid-base indicator, and the discoloration range of its ethanol solution is yellow at pH 6.0 and red at pH 7.6.

In addition, it has also been used as oil-soluble dyes and intermediates.

Chemical substance rosinic acid:

Rosic acid is a chemical substance with the molecular formula c19h14o3.

Chinese name, rose red acid, ar.

Chinese aliases: Resinic acid, rose red acid, rosy acid, golden red, rosy acid.

English name.rosolicacid.

Level: ar.

cas number: 603452.

Molecular formula: c19h14o3.

Molecular weight: 290.32.

Description of rose acid properties:

Deep red crystals with metallic luster, and also yellow-brown flakes with dark green metallic appearance.

Easily soluble in alcohol, giving a golden yellow solution, soluble in sodium hydroxide or potassium hydroxide solution, giving a carmine red color, soluble in concentrated sulfuric acid, 70 sulfuric acid, hydrochloric acid or perchloric acid, giving a yellow to orange color, slightly soluble in glacial acetic acid, slightly soluble in Ether and chloroform are almost insoluble in 0.12 and benzene.

Heat to 180C in a vacuum to evaporate. The maximum absorption wavelength of potassium hydroxide solution is 534.6 and 479.5nm. Irritating.

Physical parameters: Melting point: 308310c

Storage and transportation: sealed and stored.

Instructions for use:

Acid-base indicator, pH 6.8 yellow 8.0 red. A qualitative reagent for carbon dioxide in beverage water, it can also be used to distinguish human milk from cow's milk. Dye intermediates.

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After Zhou Wenwen synthesized the 8 explanations of Venus, after some pass and selection, he chose the power of the stars, which is the third explanation of Jin Jing and the fifth and sixth explanations of Jin Jing.

The power of the stars surrounding Venus, the sun, and the moon.

First of all, let’s talk about the reasons for pass. Let’s first look at the first explanation of Jin Jing, the Western Qi.

We have mentioned the meaning of Western Qi before, so we will not go into details here. Let’s just talk about the reason. If a mortal can become an immortal cultivator by introducing Western Qi into his body, then it is definitely wrong.

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Chapter 198: Preview of Entrainment