Ca (OH) 2 Also known as Slaked Lime, it is widely used today along with FeCl chemical used in water treatment. Let's also Loc Thien Chemicals Learn more about what Ca(OH)2 is and how it is applied through the article below.
1.What is Ca(OH)2?
Ca (OH) 2 Calcium hydroxide, also known as calcium hydroxide, is a common chemical compound used in a variety of applications. Ca(OH)2 is a white, crystalline solid that is slightly soluble in water and is alkaline. It is formed when calcium oxide (CaO), also known as slaked lime, reacts with water.
– The chemical reaction to produce Ca(OH)2 is:
CaO + H2O -> Ca(OH)2
Ca(OH)2 has many uses such as in cement production, as a pH regulator in water treatment, in medicine as an antacid, and in the whitening of paper, paint and other products.
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2. Physical and chemical properties of Ca(OH)2
2.1. Physical properties of Ca(OH)2
– Ca(OH)2 exists as a white powder.
– Slightly soluble in water, forming an alkaline solution. Its solubility can be improved by increasing the temperature or using a melting solvent such as glycerol.
– Melting point: 580 degrees Celsius
– Solubility in water: 0.185g/cm3
– Density and phase: 2.211g/cm3 solid
– If heated to 512 degrees Celsius, Ca(OH)2 will decompose into calcium oxide and water vapor. The still state of very fine calcium hydroxide particles in water is called milk of lime.
2.2. Chemical properties of Ca(OH)2
1. Base calculation:
Reaction with acids:
Ca(OH)2 + 2HCl -> CaCl2 + 2H2O
Acid neutralization reaction.
2. Reaction with carbon dioxide:
CO2 absorption:
Ca(OH)2 + CO2 -> CaCO3 + H2O
3. Precipitation:
Reaction with Na2CO3 solution to precipitate:
Ca(OH)2 + Na2CO3 –> CaCO3 + 2NaOH
4.Application in water treatment:
Water softening:
Ca(OH)2 + Ca(HCO3)2 -> 2CaCO3 + 2H2O + CO2
5. Industrial applications:
Production of oxalic acid:
Ca (OH) 2 + H2C2O4 -> CaC2O4 + 2H2O
3. Current applications of Ca(OH)2.
– Water treatment: Ca(OH)2 is used to soften water by removing calcium and magnesium ions that cause hardness. It is also used to adjust the pH of water in water treatment systems as well as in swimming pools and aquariums.
– Paper production: Ca(OH)2 is used in the papermaking process to soften and bleach wood or cellulose fibers, helping to create soft and shiny paper.
Food industry: In the food industry, Ca(OH)2 is used as a pH regulator, desiccant, and anti-microbial agent in food processing such as grain treatment, drinking water, and canning.
- Build: In the construction industry, Ca(OH)2 is used as a fire retardant for building materials such as concrete and bricks. It can also be used to create white mortar and in the recycling of concrete.
– Chemical production: Ca(OH)2 is also used in the production of chemicals such as oxalic acid, a chemical with many industrial and pharmaceutical applications.
– Agricultural processing: In agriculture, Ca(OH)2 can be used to adjust soil pH and provide calcium to plants. It is also used in food processing such as in the fermentation of onions and garlic.
>>>>> Related articles: What is Slaked Lime? Classification and Applications in Water Treatment
4. Instructions for proper storage and use
Store Ca(OH)2 in a cool, dry place to avoid exposure to moisture.
Avoid direct contact with air, as Ca(OH)2 can absorb CO2 from the air, reducing its efficiency.
– Instructions for use of Ca(OH)2:
Wear a mask and protective gloves when working with Ca(OH)2 to avoid direct skin contact and abdominal breathing.
Always work in a well-ventilated area to limit inhalation of vapors from Ca(OH)2.
Use eye protection if necessary to protect your eyes from any debris or liquid that may be splashed when working with this material.
Avoid inhalation of dust or vapors from Ca(OH)2 by using a suitable dust-filtering respirator.
Always follow the instructions and safety rules recommended by the manufacturer and regulatory agencies regarding the use and handling of this substance.
– Treatment when lime sticks to the body:
Avoid direct contact with skin and eyes. If contact occurs, rinse the area with clean water and contact a doctor if necessary.
Do not dilute Ca(OH)2 in water without careful observation and do not breathe the vapors from the solution.
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5. Where to buy reputable and quality slaked lime Ca(OH)2.
Through the above article, Loc Thien Chemicals has helped you gain more knowledge about Ca (OH) 2 Understand what lime is, its outstanding properties and current applications of lime.
If you are looking for Where to buy slaked lime Ca(OH)2 Prestige, quality, large quantity supply, preferential price, please contact us immediately via number HOTLINE 09 79 89 19 29 For a quote and more detailed advice on your needs and intended use.
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