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Analysis of Chemical Properties and Uses of CAS Number 1305-62-0

Understanding CAS No. 1305-62-0 A Comprehensive Overview

CAS No. 1305-62-0 refers to the chemical compound commonly known as calcium hydroxide. It is an inorganic compound with the formula Ca(OH)₂, consisting of calcium, oxygen, and hydrogen. This compound is often referred to as slaked lime or hydrated lime. It is a white, powdery substance that plays a crucial role in various industries and applications, owing to its versatile properties and behavior in chemical reactions.

Production and Properties

Calcium hydroxide is produced by the reaction of calcium oxide (quicklime) with water in a process known as slaking. The reaction is exothermic, meaning it releases heat. The chemical equation for this process is as follows

\[ \text{CaO (s)} + \text{H}_2\text{O (l)} \rightarrow \text{Ca(OH)}_2 \text{(s)} \]

As a significant alkaline substance, calcium hydroxide has a high pH when dissolved in water, typically reaching values between 12 and 13. It has a solubility of about 1.85 g/L at 20°C, which may seem low, but it remains effective in many applications due to its strong basic nature. The compound is also amphoteric, meaning it can react with both acids and bases.

Industrial Applications

Understanding CAS No
. 1305-62-0 A Comprehensive Overview

1. Construction Slaked lime is a fundamental component in construction materials, particularly in mortars and plasters. It contributes to the strength and durability of lime-based products and is often used in the traditional building method known as lime-washing.

cas no 1305 62 0

Analysis of Chemical Properties and Uses of CAS Number 1305-62-0

2. Water Treatment Due to its alkaline nature, calcium hydroxide is used in water treatment processes to adjust pH levels and precipitate harmful substances, such as heavy metals or phosphates. It helps in the purification of drinking water and in wastewater treatment.

3. Food Industry In the food sector, calcium hydroxide is sometimes utilized as a food additive, particularly in the preparation of certain foods like chocolate and as a preservative. It also plays a role in the production of calcium supplements.

4. Agriculture In agriculture, calcium hydroxide is applied to acidic soils to neutralize pH, enhancing soil fertility and promoting the growth of crops. It is also used in the production of calcium-based fertilizers.

5. Chemical Manufacture Calcium hydroxide serves as a precursor in the manufacture of various calcium compounds, such as calcium carbonate and calcium hypochlorite. It also participates in several significant chemical reactions, acting as a catalyst or reagent.

Health and Safety Considerations

While calcium hydroxide is generally recognized as safe when used in accordance with regulations, handling of the substance requires precautions. It is classified as a mild irritant, particularly to the eyes and skin. Prolonged exposure can lead to dermatitis or respiratory issues if proper safety measures, such as gloves and masks, are not used. In the event of contact, it is crucial to wash the affected area thoroughly with water.

Conclusion

In conclusion, CAS No. 1305-62-0, or calcium hydroxide, is a vital compound with diverse applications across various industries. From construction to agriculture, its alkaline properties make it indispensable for neutralizing acids and improving material performance. Understanding its production, uses, and safety considerations is essential for those who work with or are affected by this compound. As industries continue to evolve, the role of calcium hydroxide remains significant, shaping processes and products that benefit society.

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