How to add alum, how much should be added, and in what proportion of alum and water?

According to the purpose of adding alum, choose the addition method and quantity, such as:

1. For water purification, add 750mg of alum to 1 liter of water, break it and add it directly.

2. For excessive leucorrhea and ulcers, rinse with a solution with a concentration of 1% and 5%.

3. Make fire extinguishing agent, about 1mol L of alum solution and about 1mol L of NaHCO3 (baking soda) solution.

In addition, please note: the National Health and Family Planning Commission and other five departments stipulate that from July 1, 2014, steamed bread, hair cake and other flour products (except for fried flour products, batter, breading, and frying powder for hanging slurry) cannot be added with aluminum-containing leavening agents potassium aluminum sulfate and ammonium aluminum sulfate, which is commonly known as "alum", and the main ingredients of composite leavening agent (i.e., baking powder) are also the above two substances.

Because with the addition of alum, the noodles will be quite solid! But if you add more, it will endanger people's health!

Add 100 grams of alum fine powder to a little water to dissolve, pour it into the dough mixer, add 100 catties of noodles, and the total amount of solid water, and mix evenly!

Hello, the common practice is as follows: add alum and noodles: according to the ratio of 100 catties of starch and 0 2 catties of alum, grind the alum into noodles and put them into the basin, and then pour the beaten potatoes into it, stir evenly, and make the water content of the noodles between 48 and 50.

Noodles with alum are not good, generally do not exceed %2The fritters are generally about 100 catties of noodles.

I don't know about noodles and alum, but I know when you say fritters and alum!

It's better not to add bad for the body.

When purifying water with alum, the ratio of water to alum is 20:1.

Alum colorless transparent block crystals or crystalline powder, odorless, slightly sweet and sour taste. Weathering loses crystal water in dry air, dissolves dripping water in humid air, heats to 92·5 to lose 9 crystal water, and 200 to lose all crystal water to become white powder. Soluble in water, slowly soluble in glycerol, insoluble in ethanol, acetone.

Its aqueous solution is acidic and hydrolyzed in water to form a colloidal precipitate of aluminum hydroxide.

Preparation method: 1. The natural alum stone processing method crushes, roasts, dehydrates, weathers, steam leaching, sedimentation, crystallization, and crushing to obtain finished aluminum and potassium sulfate.

2. The bauxite method uses sulfuric acid to decompose bauxite ore to produce aluminum sulfate solution, and then adds potassium sulfate to react, and then filters, crystallizes, centrifugal dehydration, and drying to obtain aluminum potassium sulfate products.

3. The recrystallization method of coarse alum is boiled, evaporated, crystallized, separated and dried to obtain the finished aluminum sulfate and potassium sulfate.

4. The aluminum hydroxide method dissolves aluminum hydroxide in sulfuric acid, and then adds the measured potassium sulfate solution to heat the reaction, filter, concentrate, crystallize, centrifugal separation, and dry to obtain the finished aluminum sulfate potassium sulfate.

Hello, it is generally used to purify water, but the concentration should not be too high.

The dosage is about enough to let it sit for more than 5 hours.

10 liters, 50 mg 100 mg.

The main components of alum are: potassium aluminum sulfate potassium dodecahydrate KAL (SO4) 2·12H2O will be hydrolyzed in water into: potassium ions, aluminum ions and sulfate ions, among which excessive absorption of aluminum ions will lead to Alzheimer's disease, simply put, the brain will be dull if you drink too much, so it is recommended that you do not use it for the rest of your life.

500 grams of all-purpose flour, the amount of alum must be properly mastered, if the alum is large and alkaline, the product is bitter; The alkali alum is small, and the finished product is not crispy. The general ratio is:

A pound of flour and half a pound of alum. The purpose of excessive alum is to make the baking soda in the fire extinguisher fully react and release a sufficient amount of carbon dioxide to achieve the purpose of extinguishing the fire.

When frying fritters (cakes) or puffed food, if baking soda is added to the flour and then alum, the production of carbon dioxide will be accelerated, which will greatly accelerate the speed of puffing. In this way, the fritters (cakes) can be puffed up in the hot oil pan at once, and the crispy and delicious fritters (cakes) can be obtained.

Buffer, which can be used as a buffer in sulfate galvanizing to stabilize the pH value of the plating bath. Potassium aluminum sulfate is used for sulfate galvanizing, brush galvanizing and chemical oxidation of magnesium alloy, and can also be used as a coagulant for treating sewage.

Answer: clean water.

It is the hydrolysis of aluminum ions ionized by potassium aluminum sulfate to generate aluminum hydroxide colloid, and then the aluminum hydroxide colloid is used to adsorb particles in water to achieve the purpose of water purification.

to remove the tiny suspended solids in the water and make the small particles stick to each other.

It becomes flocculent.

Precipitate purified water.

Natural water often contains a lot of fine suspended solids (bacteria, algae, protozoa, sediment, clay and other insoluble substances), colloidal substances (such as humus colloids, etc.) and some soluble salts, gases, etc. When removing suspended solids, coagulants such as alum or aluminum sulfate are commonly used to aggregate these impurities to form larger particles and precipitate.

Most of the impurities in natural water are negatively charged particles, while aluminium hydroxide particles are positively charged, so the positively charged aluminium hydroxide particles can neutralize the negative charge of colloidal impurities in the water, so these impurities will soon condense and sink together with the aluminium hydroxide flocculents.

Since K2SO4 in alum has no effect on purifying water, and K2SO4 is a raw material, aluminum sulfate is generally used as a coagulant for water purification. In addition to aluminum sulfate, the water purification coagulant used in industry also includes aluminum chloride, iron chloride, iron sulfate, etc.

Water purification with alum can only remove suspended impurities in the water, but most of the salts dissolved in the water cannot be removed.

It can play a role in purifying water.

Alum water purification is a method often used by the folk in the past, its principle is that alum can ionize two metal ions in water, and AL is easy to hydrolyze to generate aluminum hydroxide AL(OH) colloid, aluminum hydroxide colloidal adsorption capacity is very strong, can adsorb impurities suspended in water, and form a precipitate, so that the water is clear.

Therefore, alum is a better water purification agent.

Alum can ionize Al3+ metal ions in water, and Al3+ is easily hydrolyzed to generate aluminum hydroxide colloid, which has a strong adsorption capacity and can adsorb impurities suspended in water and form a precipitate to make the water clear.

The aluminum contained in alum is harmful to humans. Long-term consumption of alum-purified water may cause Alzheimer's disease. It is no longer advisable to use alum as a water purification agent.

Alum has the effect of purifying water, and adding alum to the water can clarify the water.

Hello, happy with your question. The addition of alum to the water in the pool has a sedimentation effect. Copper sulfate is mainly used to kill algae, to remove the algae in the swimming pool, sodium hypochlorite is mainly used for disinfection, alum mainly plays a role in precipitation, and two methods are mainly used to keep the water clean, the first is to use the drug pump to automatically dosing, and then to carry out manual sprinkling, if there is sediment, timely underwater dust removal until the water quality reaches the standard.

Removes debris and acts as a filter.

Alum is added for water purification.