Synthesis Of Calcium Nitrate [ Ca(NO₃)₂ ] From Slaked Lime [ Ca(OH)₂ ] | Easy Method
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In this exciting chemistry demonstration, we explore the synthesis of calcium nitrate (Ca(NO₃)₂) using nitric acid (HNO₃) and slaked lime (calcium hydroxide, Ca(OH)₂). Join us as we walk you through the step-by-step process, explaining the chemical reactions involved and the safety precautions necessary when handling these substances.
We’ll discuss:
The chemical equation and reaction mechanism
Safety tips for working with acids and bases
Practical applications of calcium nitrate in agriculture and industry
Tips for achieving optimal yields during synthesis
Whether you're a chemistry enthusiast, a student, or simply curious about chemical reactions, this video will provide clear explanations and engaging visuals. Don’t forget to like, subscribe, and hit the notification bell for more fascinating chemistry content!
Chemical Reaction Overview:
The synthesis of calcium nitrate (Ca(NO₃)₂) can be achieved by reacting slaked lime (calcium hydroxide, Ca(OH)₂) with nitric acid (HNO₃). The balanced chemical equation for the reaction is:
Ca(OH)2 + 2 HNO3 → Ca(NO3) 2 + 2 H2O
Materials Needed:
Calcium Hydroxide (Slaked Lime)
Nitric Acid (HNO₃)
Distilled Water
Glass Beaker
Stirring Rod
pH Indicator (optional)
Safety Equipment (gloves, goggles, lab coat)
Procedure:
Preparation:
Ensure you are wearing appropriate safety gear (gloves, goggles, lab coat).
Prepare a dilute solution of nitric acid in a glass beaker.
Dissolve Calcium Hydroxide:
In another container, mix slaked lime with a small amount of distilled water to form a suspension.
Reaction:
Slowly add the calcium hydroxide suspension to the nitric acid solution while stirring continuously. This should produce calcium nitrate and water.
Monitor the Reaction:
If desired, use a pH indicator to ensure the solution reaches neutrality (pH around 7). Adjust with more nitric acid or slaked lime as necessary.
Filtration:
Once the reaction is complete, filter the solution to remove any unreacted solids.
Evaporation:
To obtain solid calcium nitrate, gently evaporate the water from the filtered solution using a heat source.
Crystallization:
Allow the concentrated solution to cool to promote crystallization of calcium nitrate.
Collection:
Collect the crystals of calcium nitrate formed and allow them to dry.
Safety Precautions:
Handle nitric acid with care, as it is a strong acid and can cause burns.
Work in a well-ventilated area or under a fume hood.
Always add acid to water, never the other way around, to avoid violent reactions.
Applications of Calcium Nitrate:
Calcium nitrate is widely used in agriculture as a fertilizer, providing both calcium and nitrogen to plants. It’s also utilized in various industrial processes, including concrete production and wastewater treatment.
Conclusion:
This simple synthesis demonstrates an important chemical reaction with practical applications. Always follow safety guidelines and proper laboratory techniques when conducting chemical experiments.
Timestamps:
0:00 Introduction
0:7 Materials Needed
0:10 Step-by-Step Synthesis
1:55 Results
2:05 Outro
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