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Product Description
Calcium hydroxide USP often referred to as slaked lime is a chemical compound with the chemical formula CaOH2 It is a white crystalline solid that is produced by mixing calcium oxide lime with water
Calcium Hydroxide Properties:
Chemical Formula: CaOH2
Physical State: It is commonly found in the form of a white odorless powder or colorless crystals
Solubility: Calcium hydroxide is sparingly soluble in water The solubility increases with temperature The resulting solution is known as lime water
Alkalinity: Calcium hydroxide is a strong base and when dissolved in water it produces hydroxide ions OH This property makes it useful in applications where alkalinity is required such as in water treatment processes
pH: Regulation Calcium hydroxide is commonly used to regulate the pH of acidic solutions or soils It reacts with acidic substances neutralizing them and raising the pH
Reactivity with Carbon Dioxide: Calcium hydroxide reacts with carbon dioxide in the air to form calcium carbonate 3CaCO3 a process known as carbonation This property is utilized in carbon capture technologies and is the reason why lime water turns cloudy when exposed to air
Health and Safety: While generally considered safe for many applications calcium hydroxide can cause irritation to the skin and eyes Dust inhalation should be avoided
Chemical Reactivity: Besides reacting with acids and carbon dioxide calcium hydroxide can also participate in various chemical reactions and its reactivity is exploited in different industrial processes
Applications of Calcium Hydroxide:
Agriculture: Soil Amendment Calcium hydroxide is used to raise the pH of acidic soils thereby improving soil structure and enhancing the availability of nutrients to plants
Liming It is employed as a liming agent to neutralize soil acidity and prevent aluminum toxicity in acidic soils
Construction: Mor tar and Plaster Calcium hydroxide is a key component in the preparation of lime mor tar and plaster It reacts with carbon dioxide in the air to form calcium carbonate contributing to the hardening of the material
Water Treatment: Softening Water Calcium hydroxide is used to soften water by precipitating calcium carbonate and magnesium hydroxide which can be removed as solid particles
pH Adjustment It is utilized in water treatment processes to raise the pH of acidic water and neutralize acidity
Food Industry: Pickling Calcium hydroxide is used in the pickling process to maintain the crispness of fruits and vegetables Fortification It is used to fortify certain food products with calcium
Chemical Manufacturing: Chemical Reactions Calcium hydroxide participates in various chemical reactions and is used as a reactant in the synthesis of other chemicals
Environmental Applications: Carbon Capture Its reactivity with carbon dioxide makes calcium hydroxide useful in carbon capture technologies where it can capture and sequester CO2
Medical and Dental Applications: Dentistry In dental applications calcium hydroxide is used in materials for root canal treatment Antacid It has been used as an antacid to treat digestive issues
Wastewater Treatment: Neutralization In wastewater treatment calcium hydroxide is used to neutralize acidic wastewater before discharge
Leather Industry: Liming Hides Calcium hydroxide is used in the leather industry during the liming process to remove hair and proteins from hides
Paints and Coatings: Hydrated Lime It is used as a filler and extender in the production of paints and coatings
FAQs of Calcium Hydroxide USP:
Q: What is the shelf life of Calcium Hydroxide USP?
A: The shelf life of Calcium Hydroxide USP is five years after the manufacturing date.
Q: What is the grade of Calcium Hydroxide USP?
A: The grade of Calcium Hydroxide USP is USP grade.
Q: What is the molecular weight of Calcium Hydroxide USP?
A: The molecular weight of Calcium Hydroxide USP is 74.09 g/mol.
Q: What is the appearance of Calcium Hydroxide USP?
A: The appearance of Calcium Hydroxide USP is white or almost white, fine powder.
Q: What is the usage of Calcium Hydroxide USP?
A: The usage of Calcium Hydroxide USP is in pharmaceutical industries.
Q: What is the purity of Calcium Hydroxide USP?
A: The purity of Calcium Hydroxide USP is 95.0% - 100.5%.
Q: What is the CAS No of Calcium Hydroxide USP?
A: The CAS No of Calcium Hydroxide USP is 1305-62-0.