Is alum salt? What is Alum?

Yes, salt with crystalline water.

Alum is a natural mineral, the main component is FeSO4, which is a crystalline block prepared from the mineral iron sulfate alum. It is produced in Gansu, Xinjiang, Shaanxi, Henan, Shandong, Anhui, Zhejiang, Hunan, Sichuan and other places. It can be collected in all seasons, the excavated ore is crushed, heated and melted with water, the solute is poured, part of the water is evaporated by heating, concentrated, cooled, and the precipitated crystals are used.

Alum is a light blue-green monoclinic crystal. The crystals are short columnar, thick plate-like, fine-grained or fibrous, and the aggregates are granular blocks, fibrous radial blocks or skin shells, and membranes. green in various shades; When it contains copper, it is light greenish-blue (aluminum), and it is dehydrated, hydroxylated or oxidized to yellow-green, greenish-yellow to canary yellow, yellow-brown, reddish-brown, brown-red and other colors (transitioning to aqua alum-fibroid, i.e., alum, or a collection of local limonite); Pure green alum, which is completely dehydrated, is white.

The streaks are lighter than the color. Fresh crystals are transparent, rare; Usually translucent, weathered surface opaque. Glassy, silky luster or earthy luster.

The cleavage of the crystal is complete, and the fracture is shell-shaped; Weatherers do not see clear cleavage.

It's all salt. In chemistry, salt refers to a class of metal ions or ammonium ions (NH4+) combined with acid ions or non-metal ions of compounds, such as calcium sulfate, copper chloride, sodium acetate, generally speaking, salt is the product of metathesis reactions, such as the sale of sulfuric acid and sodium hydroxide to produce sodium sulfate and water, there are also other reactions to generate salts, such as displacement reactions.

1. Cholelum is copper sulfate pentahydrate, with the chemical formula CuSO4·5H2O, which belongs to salt.

2. The scientific name of alum is potassium aluminum sulfate dodecahydrate, with the molecular formula K2SO4·Al2(SO4)3·24H2O, which is a double salt of potassium sulfate and aluminum sulfate containing lead and crystalline water, which belongs to the double salt.

3. The molecular formula of green alum is FeSO4·7H2O, which belongs to salt.

It belongs to salt. In chemistry, salt refers to a class of metal ions or ammonium ions combined with acid coarse root ions or non-metal ions, such as calcium sulfate, copper chloride, sodium acetate, generally speaking, salt is the product of metathesis reaction, such as sulfuric acid and sodium hydroxide to produce sodium sulfate and water, there are also other reactions to generate salts, such as displacement reactions.

What kind of finch is alum?

Alum is also known as: alum, potassium alum, potassium alum, potassium alum, the state has banned its use in food additives, is a double salt of potassium sulfate and aluminum sulfate containing crystal water. Colorless cubic crystals, the appearance is often octahedral, or with the cube, rhombic dodecahedron to form a polymorphic shape, sometimes attached to the container wall with 111 sides and resembling a hexagonal plate, belonging to the type alum class double salt, with glass luster.

Alum is a chemical substance, is ferrous sulfate crystals, English name: ferrous sulfate, is a columnar or granular aggregate, irregular block. Blue-green, green with streaks white.

The molecular weight is 3, the pH value is 3, the melting point is 64 degrees Celsius, and the strong thermal decomposition is soluble in water, glycerol, and insoluble in ethanol.

Ferrous sulfate (FeSO4*7H2O) is also known as green alum, iron alum, containing 7 crystalline water molecules. It is transparent, light green crystals or powders, odorless, astringent, and easy to weathering in dry air.

Alum bai is also known as: ferrous sulfate crystals. It can be used as a water purification agent

** Blood diseases and other DAOs.

Medicinal Value of Alum: Edition 1 Weak and swollen spleen. Use two catties to pan for power.

Atractylodes atractylodes soaked in rice water for two nights, four taels of yellow wine koji fried into red, add a pound of green alum, block vinegar, dry, calcine, grind finely, and then add vinegar and paste to make balls, which are used together with flat stomach and treat liver bloating.

2 The larynx is swollen and closed. Use green, mix in vinegar, dry, and blow the throat at the end of grinding. After the phlegm and saliva flow out, use a little minced ginger and rinse it in the tea to swallow.

3 The eyes are red and rotten. Use red dates to remove the core and add green alum, simmer, add two bowls of water and seven peach willow hearts, and fry them together. Apply to the eyes.

4 Malaria vomiting. Use green alum, soaked dried ginger, co-study for the end, and send down the vinegar soup.

5 Constipation. Use one penny of green alum, two pieces of bashuang, grind finely, put it in the egg and stir well, simmer it, and eat it with wine.

6 White bald sores. Use alum and neem seeds to refine and coat.

7 Rotten sores in the ears. Remove the core with dates, add green alum, grind finely after calcining, and adjust with sesame oil.

8 Burns. Rinse the alum powder with cool water and pour the wound.

Green alum is a chemical substance, is ferrous sulfate crystals, also known as ferrous sulfate heptahydrate, iron alum, its refined products are light blue green sandy crystals.

Answer: It is a columnar or granular aggregate with irregular blocks. Blue-green, green with streaks white. The molecular weight is 3, the pH value is 3, the melting point is 64 degrees Celsius, and the strong thermal decomposition is soluble in water, glycerol, and insoluble in ethanol.

It is widely distributed in arid areas, and is a weathering zone of iron-containing sulfide minerals (pyrite, pyrrhotite, etc.). In addition to the ancient production areas of Shanxi, Gansu, Anhui, Hubei and Sichuan, Shaanxi, Xinjiang, Shandong, Zhejiang, Henan, Hunan and other places have output.

Heptahydrate sulfate.

Bai iron is a columnar or granular DU aggregate, which is irregular in the form of zhi blocks. blue-green, DAO green; Streaks white.

Echo color. Transparent to slightly transparent. The surface is uneven, rough, and turns pale yellow after a long time in the air.

The texture is hard and brittle, and it can be scratched with a fingernail, easy to smash, and the mask is glassy. It is odorless, and the taste is first astringent and then sweet. It is better to have green, brittle quality and no impurities.

Feso4·7H2O, which can be used as traditional Chinese medicine, is mainly used to treat dampness and insecticide; replenish blood and eliminate accumulation; Detoxify sores. The main blood is deficient and chlorosorous; Accumulation of chancre; bloating and full; intestinal wind and blood in the stool; ulcering sores; laryngeal paralysis and aphthous ulcers; Rotten String Eye of the Wind; Scabies itching.