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The function and precautions of bleaching powder

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  • Release Time:2023-08-17 14:45
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【Summary】The main components of bleaching powder are calcium hypochlorite (containing 32%-36%), calcium chloride (29%), calcium oxide (10%-18%), calcium hydroxide (15%) and water (10%).

The function and precautions of bleaching powder

【Summary】The main components of bleaching powder are calcium hypochlorite (containing 32%-36%), calcium chloride (29%), calcium oxide (10%-18%), calcium hydroxide (15%) and water (10%).

  • Categroy:News
  • Author:
  • Origin:
  • Release Time:2023-08-17 14:45
  • Views:
Information

The main components of bleaching powder are calcium hypochlorite (containing 32%-36%), calcium chloride (29%), calcium oxide (10%-18%), calcium hydroxide (15%) and water (10%). It is a white granular powder, smelly, soluble in water, the solution is turbidity, poor stability, and gradually absorbs water and carbon dioxide in the air. In the general process, the available chlorine will gradually decompose. Bleach powder is a widely used disinfectant and water quality improver in aquaculture. After the bleaching powder is dissolved in water, hypochlorous acid and hypochlorous acid are produced, and hypochlorous acid can release active chlorine and initial ecological oxygen. It can kill bacteria, viruses, fungal spores and bacterial spores to different degrees. In addition, because the bleaching powder contains about 15% calcium hydroxide, the ph value of the pool water can be properly adjusted, and the formation of flocculation precipitation of calcium hydroxide in the water can adsorb organic matter and gum, so that the pool water is improved. The role of bleaching powder in aquaculture:

1. Pond cleaning and disinfection

Dry pond cleaning, the amount of bleaching powder is 10-30 g/m2; With water to clean the pond with 20 grams/cubic meters of water all over the pond. Can kill bacteria, parasites and other pathogens, but also can eliminate wild fish and other enemy organisms. After cleaning the pond 4-5 days after the drug disappears, you can inject new water, free aquatic animals.

2. aquaculture water disinfection

In the epidemic season (April to October), different disinfection methods are planned for different breeding objects. Generally divided into the whole pool sprinkling method and hanging bag method. For the prevention and control of bacterial diseases of carp fish, the concentration of water drugs is 1-2 mg/l. Around the food farm, the method of hanging bags is usually used for the prevention and treatment of bacterial diseases, and the number of hanging bags depends on the size of the pond and the number of farms. Usually hang 3-6 bags around the food field, each bag containing 100-150 grams of bleach powder.

Prevention of bacterial diseases of freshwater farmed fish: Periodically sprinkle bleach powder 2-3 times a month during the epidemic season at a dose of 1 mg/l (containing 30% of available chlorine).

Treatment of bacterial diseases and syndromes of freshwater cultured fish: Sprinkle bleaching powder all over the pool, so that the concentration of medicine in the pool water is 1 mg/l.

Bacterial diseases such as skin rot, furunculosis and red bottom plate of turtle: Use a bleach powder aqueous solution bath with a concentration of 1.5 mg/l. Use once a day for 2-3 days.

3. body disinfection

For fish and crab, use an aqueous solution of 10-20 mg/L of bleach powder (30% of available chlorine) for 10-30 minutes. Kill bacteria on body surface and gills; The surface of turtle can be disinfected with a concentration of 10 mg/l of bleach powder aqueous solution for 1-5 hours.

4. Disinfection of breeding sites and tools

Wooden or plastic tools should be soaked and disinfected with 5% bleach powder solution, and then washed with water before use; Aisles of breeding sites and food processing workshops can also be sprayed with 5% bleach powder aqueous solution for disinfection.

5. Sterilize the bait

The water grass should be clean and fresh. In the epidemic season, water plants can be disinfected, soaked in an aqueous solution of bleach powder with a concentration of 6 mg/L for 20-30 minutes, and then washed with clean water before feeding. Can prevent the occurrence of intestinal diseases. Precautions for use:

The effective chlorine content of bleach powder sold on the market is generally 25%-32%, and if the content is less than 15%, it can not be used. Use the correct calculation of the amount of medicine, use now. It has corrosion and bleaching effects on items, avoid using metal utensils. Store in a cool and dry place, away from sunlight, heat and humidity. Avoid mixing with acid, ammonium salt, sulfur and many organic compounds when used.

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Difference between calcium hypochlorite and bleaching powder
Difference between calcium hypochlorite and bleaching powder
1. What is Calcium hypochlorite? The main components of bleaching powder commonly used in aquaculture are calcium chloride and calcium hypochlorite. Among them: the effective component of bleaching powder that plays a role in disinfection is calcium hypochlorite [ca (CLO) 2], and calcium chloride is a chemical substance that will obviously absorb moisture. Due to the existence of calcium chloride in bleaching powder, the available chlorine in bleaching powder is easily affected and reduced. Because calcium hypochlorite is the essence of bleaching powder, calcium hypochlorite is also called bleaching powder essence in the market. Compared with bleaching powder, it is pure calcium hypochlorite essence and does not contain calcium chloride and other hygroscopic substances. The chlorine content is about 68%, which is significantly higher than the effective chlorine content of the newly produced non damped bleaching powder. Generally, the disinfection dose is only 0.1~0.2ppm. In aquaculture and other industries that need disinfection and oxidation, disinfectants that dissolve in water and produce hypochlorite are generally referred to as chlorine containing disinfectants. The germicidal efficacy of chlorine containing disinfectants is closely related to the amount of effective chlorine they contain. The higher the effective chlorine, the stronger the disinfection and oxidation capacity. 2. Comparison of advantages and disadvantages between bleaching powder and calcium hypochlorite Advantages of bleach: It is cheap and has obvious effect on general pathogenic microorganisms. Disadvantages of bleach: Due to the strong water absorption of calcium chloride contained in bleaching powder, it is easy to decompose when exposed to light, water, heat, etc., and is not resistant to storage. Especially in humid areas, the available chlorine of bleaching powder will decrease exponentially in about a month. Even lead to the loss of proper disinfection effect. The principle of bleaching powder deterioration: Calcium chloride in bleaching powder absorbs water and makes calcium hypochlorite in bleaching powder generate hypochlorite.   3. Hypochlorous acid will decompose into hydrogen chloride and oxygen under light conditions, thus losing effective chlorine. Advantages of calcium hypochlorite: contains very little hygroscopic calcium chloride, so calcium hypochlorite is relatively stable and resistant to storage and transportation (which is very important to ensure the disinfection effect). Compared with bleaching powder, the available chlorine of calcium hypochlorite is stable and high, which has obvious effect on general pathogenic microorganisms. The amount of use in disinfection is small, which reduces the amount of labor. Disadvantages of calcium hypochlorite: Since calcium hypochlorite contains a large amount of effective chlorine, protective measures need to be taken during operation.
See more information
1. What is Calcium hypochlorite? The main components of bleaching powder commonly used in aquaculture are calcium chloride and calcium hypochlorite. Among them: the effective component of bleaching powder that plays a role in disinfection is calcium hypochlorite [ca (CLO) 2], and calcium chloride is a chemical substance that will obviously absorb moisture. Due to the existence of calcium chloride in bleaching powder, the available chlorine in bleaching powder is easily affected and reduced. Because calcium hypochlorite is the essence of bleaching powder, calcium hypochlorite is also called bleaching powder essence in the market. Compared with bleaching powder, it is pure calcium hypochlorite essence and does not contain calcium chloride and other hygroscopic substances. The chlorine content is about 68%, which is significantly higher than the effective chlorine content of the newly produced non damped bleaching powder. Generally, the disinfection dose is only 0.1~0.2ppm. In aquaculture and other industries that need disinfection and oxidation, disinfectants that dissolve in water and produce hypochlorite are generally referred to as chlorine containing disinfectants. The germicidal efficacy of chlorine containing disinfectants is closely related to the amount of effective chlorine they contain. The higher the effective chlorine, the stronger the disinfection and oxidation capacity. 2. Comparison of advantages and disadvantages between bleaching powder and calcium hypochlorite Advantages of bleach: It is cheap and has obvious effect on general pathogenic microorganisms. Disadvantages of bleach: Due to the strong water absorption of calcium chloride contained in bleaching powder, it is easy to decompose when exposed to light, water, heat, etc., and is not resistant to storage. Especially in humid areas, the available chlorine of bleaching powder will decrease exponentially in about a month. Even lead to the loss of proper disinfection effect. The principle of bleaching powder deterioration: Calcium chloride in bleaching powder absorbs water and makes calcium hypochlorite in bleaching powder generate hypochlorite.   3. Hypochlorous acid will decompose into hydrogen chloride and oxygen under light conditions, thus losing effective chlorine. Advantages of calcium hypochlorite: contains very little hygroscopic calcium chloride, so calcium hypochlorite is relatively stable and resistant to storage and transportation (which is very important to ensure the disinfection effect). Compared with bleaching powder, the available chlorine of calcium hypochlorite is stable and high, which has obvious effect on general pathogenic microorganisms. The amount of use in disinfection is small, which reduces the amount of labor. Disadvantages of calcium hypochlorite: Since calcium hypochlorite contains a large amount of effective chlorine, protective measures need to be taken during operation.
Calcium hypochlorite Market Overview
Calcium hypochlorite Market Overview
Time of issue : 2024-04-15 16:52:27
Market Overview It is estimated to reach USD 1,808.11 million by 2031, growing at a CAGR of 11.13% over the forecast period (2023–2031). Market growth is anticipated to be driven by the rising demand for calcium hypochlorite in the coming years, driven by the rising usage of hygiene products to prevent water-borne diseases like cholera and typhoid.   Calcium hypochlorite is an inorganic compound utilized as a component in chlorine powder and bleaching powder, among other applications. It undergoes gradual decomposition in humid air and emits a potent chlorine odor. Calcium hypochlorite overuse can be harmful and irritate the skin. It has extensive applications in the disinfection of swimming pools, water purification, and bleaching textiles and paper. Calcium hypochlorite must be stored away from organic materials such as cloth, wood, and petroleum products since it can cause an explosion or fire when reacted.   Calcium hypochlorite is mainly used to disinfect drinking water and public swimming pools. The surging usage of calcium hypochlorite in spas, hot tub water, and swimming pools is anticipated to positively impact the growth of the calcium hypochlorite market worldwide. It is used as an oxidizer for decontaminating mustard gas and as a pesticide for insects, especially caterpillars. Calcium hypochlorite is also used to kill bacteria in different food products. It is utilized to sanitize the surfaces of different equipment and utensils. In households, calcium hypochlorite is commonly used in algaecides, bathroom cleaners, herbicides, household disinfectant sprays, laundry detergents, etc.
See more information
Market Overview It is estimated to reach USD 1,808.11 million by 2031, growing at a CAGR of 11.13% over the forecast period (2023–2031). Market growth is anticipated to be driven by the rising demand for calcium hypochlorite in the coming years, driven by the rising usage of hygiene products to prevent water-borne diseases like cholera and typhoid.   Calcium hypochlorite is an inorganic compound utilized as a component in chlorine powder and bleaching powder, among other applications. It undergoes gradual decomposition in humid air and emits a potent chlorine odor. Calcium hypochlorite overuse can be harmful and irritate the skin. It has extensive applications in the disinfection of swimming pools, water purification, and bleaching textiles and paper. Calcium hypochlorite must be stored away from organic materials such as cloth, wood, and petroleum products since it can cause an explosion or fire when reacted.   Calcium hypochlorite is mainly used to disinfect drinking water and public swimming pools. The surging usage of calcium hypochlorite in spas, hot tub water, and swimming pools is anticipated to positively impact the growth of the calcium hypochlorite market worldwide. It is used as an oxidizer for decontaminating mustard gas and as a pesticide for insects, especially caterpillars. Calcium hypochlorite is also used to kill bacteria in different food products. It is utilized to sanitize the surfaces of different equipment and utensils. In households, calcium hypochlorite is commonly used in algaecides, bathroom cleaners, herbicides, household disinfectant sprays, laundry detergents, etc.
Pros of Calcium Hypochlorite
Pros of Calcium Hypochlorite
Time of issue : 2024-04-09 10:13:04
Calcium hypochlorite is a white, concentrated chemical sold as a powder, as crystals and in tablets. All are used to disinfect and sanitize drinking water and swimming pool water. When combined with water, calcium hypochlorite releases oxygen and a high concentration of chlorine molecules. Chlorine is an effective way to kill bacterial and fungal populations in water sources, and, compared with other sources of chlorine for water purification, it is easier and safer to use. However, there are some downsides to be aware of in calcium hypochlorite use. Cost Effectiveness One of the primary benefits of calcium hypochlorite is that a relatively small amount of the chemical can successfully disinfect large amounts of water, making it one of the most cost-effective choices in water sanitation. According to Survivaltopics.com, a site devoted to providing readers information about surviving outdoors and during emergency situations, a 1-lb. bag of calcium hypochlorite in granular form can treat up to 10,000 gallons of water. Ease of Use Although using chlorine as a water disinfectant is generally simple and efficient, calcium hypochlorite is preferred over the other common forms of chlorine water treatment–chlorine gas and liquid bleach (also known as sodium hypochlorite)–because it is more stable, requires less equipment to use and is easier to transport. Chlorine gas is highly effective but must be handled with extreme care because of its hazardous, corrosive nature. Liquid bleach is most useful when treating only small amounts of water. By contrast, calcium hypochlorite is safer to handle than chlorine gas and can be used on much larger volumes of water than bleach. Length of Storage Another benefit of calcium hypochlorite is that it can be stored for long periods of time without any of its disinfectant ability diminishing. Other forms of chlorine, such as liquid bleach, degrade in a matter of months. In order to be certain that your bleach has the optimal level of chlorine, a representative of Clorox says, you should change your supply of bleach every three months. Length of Storage Another benefit of calcium hypochlorite is that it can be stored for long periods of time without any of its disinfectant ability diminishing. Other forms of chlorine, such as liquid bleach, degrade in a matter of months. In order to be certain that your bleach has the optimal level of chlorine, a representative of Clorox says, you should change your supply of bleach every three months.  
See more information
Calcium hypochlorite is a white, concentrated chemical sold as a powder, as crystals and in tablets. All are used to disinfect and sanitize drinking water and swimming pool water. When combined with water, calcium hypochlorite releases oxygen and a high concentration of chlorine molecules. Chlorine is an effective way to kill bacterial and fungal populations in water sources, and, compared with other sources of chlorine for water purification, it is easier and safer to use. However, there are some downsides to be aware of in calcium hypochlorite use. Cost Effectiveness One of the primary benefits of calcium hypochlorite is that a relatively small amount of the chemical can successfully disinfect large amounts of water, making it one of the most cost-effective choices in water sanitation. According to Survivaltopics.com, a site devoted to providing readers information about surviving outdoors and during emergency situations, a 1-lb. bag of calcium hypochlorite in granular form can treat up to 10,000 gallons of water. Ease of Use Although using chlorine as a water disinfectant is generally simple and efficient, calcium hypochlorite is preferred over the other common forms of chlorine water treatment–chlorine gas and liquid bleach (also known as sodium hypochlorite)–because it is more stable, requires less equipment to use and is easier to transport. Chlorine gas is highly effective but must be handled with extreme care because of its hazardous, corrosive nature. Liquid bleach is most useful when treating only small amounts of water. By contrast, calcium hypochlorite is safer to handle than chlorine gas and can be used on much larger volumes of water than bleach. Length of Storage Another benefit of calcium hypochlorite is that it can be stored for long periods of time without any of its disinfectant ability diminishing. Other forms of chlorine, such as liquid bleach, degrade in a matter of months. In order to be certain that your bleach has the optimal level of chlorine, a representative of Clorox says, you should change your supply of bleach every three months. Length of Storage Another benefit of calcium hypochlorite is that it can be stored for long periods of time without any of its disinfectant ability diminishing. Other forms of chlorine, such as liquid bleach, degrade in a matter of months. In order to be certain that your bleach has the optimal level of chlorine, a representative of Clorox says, you should change your supply of bleach every three months.  
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