The principle of industrial manufacturing of distilled water, a device for producing distilled water

Pure water prepared by the distillation method. Distilled water can be divided into single and multiple times. After a distillation of water, the non-volatile components (salts) remain in the container and the volatile components (ammonia, carbon dioxide, organics) enter the initial fraction of the distilled water, usually only the middle part of the fraction is collected, which accounts for about 60.

To obtain purer water, alkaline potassium permanganate solution can be added to primary distilled water to remove organic matter and carbon dioxide; A non-volatile acid (sulfuric acid or phosphoric acid) is added to make ammonia a non-volatile ammonium salt. Since glass contains a small amount of water-soluble components, it is necessary to use quartz distillation vessels to obtain very pure water when performing secondary or multiple distillations, and the resulting pure water should be kept in quartz or silver containers.

Depending on what kind of distilled water you need, the cost of making distilled water varies greatly depending on the purity.

Distilled water is obtained by distillation. There's no special way to make it, it's basically just heated. The decompression or vacuum you are talking about can indeed reduce the boiling point, so as to achieve the purpose of saving fuel, but because the cost of this method itself will be higher, it is generally not used in industry, and it will only be used in the laboratory.

The difference between distilled water is in purity. If the purity requirements are high, multi-stage distillation can be adopted, and the second distillation is called re-distilled water, and the third distillation is called triple distilled water. Sometimes, for special purposes, appropriate reagents will be added before steaming, such as acid will be added to the water for ammonia-free water, low oxygen consumption water, potassium permanganate and acid will be added.

Industrial distilled water is water that is distilled and condensed, and the water that is steamed twice is called re-distilled water, and the water that is steamed three times is called three-distilled water. Sometimes, for special purposes, special reagents are added before steaming. It can be distilled in multiple stages to achieve very pure, and the cost is relatively high.

Distilled water is water that is distilled and condensed, and the second distillation is called re-distilled water, and the third distillation is called triple distilled water. Water with low oxygen consumption, potassium permanganate and acid industrial distilled water is obtained by distilled water method.

Reducing the pressure is conducive to lowering the boiling point of the liquid. Therefore, reducing the pressure while heating is a necessary means of cost savings.

Apparatus for the preparation of distilled water in the laboratory: large test tubes, catheters with single-hole plugs, iron stands, alcohol lamps, large beakers, saturated lime water, red ink, broken porcelain pieces.

The operation is as follows: 1. Assemble the distillation flask and condenser tube instrument.

2. Add ordinary water (tap water) to about half of the volume of the flask in the distillation flask, then add some broken porcelain pieces, and then plug it tightly with a rubber stopper with a thermometer (150). (Note the position of the mercury ball of the thermometer on the branch tube of the distillation flask) and heat the distillation flask.

3. When the water temperature reaches about 100, the water boils, and the water vapor is collected in the Erlenmeyer flask after condensing through the condenser tube, which is distilled water. Broken porcelain pieces are for anti-boiling.

Distilled water basic uses:

1. In life, when it is generally related to machines and electrical appliances, the main function of distilled water is that it does not conduct electricity, ensures the stable operation of the machine, and prolongs the service life of electrical appliances.

2. In the pharmaceutical industry, the role of distilled water is due to hypotonic effect. Rinse the surgical wound with distilled water to make the tumor cells that may remain in the wound absorb water and swell, rupture, necrosis, and lose their activity, so as to avoid the growth of tumors in the wound.

3. Some chemical experiments in the school need to use distilled water, which uses distilled water without electrolytes, free ions, or impurities. You need to analyze the specific problem on a case-by-case basis to see if it is due to its non-conductive properties, or hypotonic effect, or if there are no other ions and no chemical reactions.

Device for making distilled water: three-mouth distillation flask (electric heating jacket or electric furnace heating) + elbow + straight condenser tube + tail tube + grinding Erlenmeyer flask.

Distilled water is prepared.

Simple ingredients for distilled water: deep pot, curved lid, ice cubes.

Steps:1Start by adding water to the pot and then heat it well over medium-high heat.

At this time, we put the big bowl into the pot and let the big bowl float on the water surface (this function is used to catch the distilled water) Here we need to pay special attention: we need to pay attention at all times in the process of receiving the distilled water, so as to avoid too much water and let the big bowl fall. Next, we need to flip the lid over so that the lid is on top of the pot.

2.After that, we're going to send ice cubes into the field, and this is mainly by putting ice cubes on the lid of the pot. The amount of ice cubes in this depends on the size of our lid.

It is important to note here that since the ice cubes dissolve quickly when heated, it is recommended that we pour out the water and add the ice cubes again (the purpose of this type of ice cubes is to continuously speed up the cooling of the steam in the pot, so that the steam can drip into the large bowl).

3.After doing the above steps, we can start to see the initial results, this hand only needs to lift the lid slightly, and immediately you can see the steam will gradually condense on the top of the pot to form small droplets of water dripping into the bowl.

4.What I want to tell you here is that we only need to make sure that the bowl does not sink when we receive distilled water. Then you have enough of the required amount to store the distilled water in a cleaned glass bottle.

1. Fill a stainless steel pot with a volume of about 18L with about half of the tap water.

2. Put a glass bowl in the pot. Make sure the bowl is floating and doesn't touch the bottom.

3. If it doesn't float, put a round baking rack under the bowl.

4. The water in the pot must be boiled before proceeding to the celery feast. This allows chemicals such as methanol and ethanol to evaporate first.

5. Use the method of alternating cold and heat to create a condensation effect. You can turn the lid of the pot upside down and fill it with ice cubes, and the hot air will condense into water droplets when it hits the ice cubes.

6. Bring the water in the pot to a boil. Boiling causes the steam to rise and condense at the lid. It then drip into the bowl and stop condensing until the bowl has collected enough water.

7. The water here should be hot, but not boiling. If it boils, turn down the heat on the stove and just let the water in the pot boil.

8. Remove the pot from the stove and remove the lid.

9. Take the distilled water bowl out of the pot. Allow the distilled water to cool before storage.

The method of making distilled water is as follows:Tools: two bottles, water.

1. Take two bottles. The bottleneck of a bottle needs to be bent slightly to prevent the distilled water from flowing back.

2. Fill one bottle with tap water, stick the bottlenecks of the two bottles together, and seal tightly with a pipe tape.

3. Fill a stainless steel pot with boiling water and distill the water. Just cover the amount of water in the bottle below. Tilt the bottle thirty degrees against the rim of the pot.

4. Put an ice pack or ice wrap on the bottle on it. This creates a contrast between hot and cold and allows the steam to condense. Continue the coagulation process until enough moisture has been collected.

Distilled water is made as follows:

1. Put water and a bowl in the pot.

Put water in the pot and place a small bowl in the middle of the pot.

2. Cover the pot with the lid in reverse.

Cover the pot with the lid in reverse and bring the water to a boil on high heat.

3. Distilled water is formed after the water is boiled.

When the water boils, a large amount of water vapor is produced in the pot, which adheres to the lid and slowly drip into the bowl.

Distilled water refers to the water that has been distilled and condensed, and the second distillation is called heavy distilled water, and the third distilled water is called hall and three distilled water. Water with low oxygen consumption, potassium permanganate and acid added. Industrial distilled water is obtained by the distilled water method.

The entry details the concept of distillation, distilled water, multiple distilled water, and the standard, production method, advantages, and uses of distilled water; It was also compared with deionized water, high-purity water and ultrapure water.

Distillation: It is a thermodynamic separation process, which uses the different boiling points of each component in the mixed liquid or liquid-solid system to evaporate the low boiling point components, and then condense to separate the unit operation process of the whole component, which is a combination of evaporation and condensation. Compared with other separation methods, such as extraction, filtration crystallization, etc., it has the advantage that no solvents other than the system components are used, thus ensuring that no new impurities are introduced.

Once distilled water:

After a distillation of the water, the non-volatile components (halomorphic components) remain in the container and are removed, and the volatile components (ammonia, carbon dioxide, organic matter) enter the initial fraction of the distilled water, and usually only the middle part of the fraction is collected, accounting for about 60%.