कॉपर सल्फेट क्रिस्टल उगाना

धीमी वाष्पीकरण द्वारा बड़े नीले क्रिस्टल उत्पन्न करना

Crystallization Beginner (Middle School) 30 मिनट ~$8.00

उद्देश्य

धीमी वाष्पीकरण विधि का उपयोग करके बड़े, सुगठित कॉपर सल्फेट पेंटाहाइड्रेट क्रिस्टल उगाएं, अतिसंतृप्ति और क्रिस्टल जाली निर्माण प्रदर्शित करें।

पृष्ठभूमि

Copper sulfate pentahydrate (CuSO₄·5H₂O) forms beautiful blue triclinic crystals. By preparing a saturated solution and allowing it to evaporate slowly over several days, large single crystals can be grown. The process demonstrates concepts of solubility, supersaturation, and crystal nucleation.

सुरक्षा चेतावनियाँ

  • Copper sulfate is toxic if ingested
  • Wear gloves when handling the solution
  • Wash hands thoroughly after the experiment
  • Do not dispose of copper sulfate down the drain

आवश्यक PPE

goggles gloves

सामग्री

  • Copper(II) sulfate pentahydrate (50 g)
    Blue crystals
  • Distilled water (200 mL)
    Hot
  • Thread or fishing line (30 cm)
    For seed crystal
  • Pencil or stick (1)
    To suspend seed crystal

उपकरण

400 mL beaker Hot plate Stirring rod Filter paper Funnel

प्रक्रिया

1

Heat 200 mL of distilled water to 60-70°C. Add copper sulfate gradually while stirring until no more dissolves (saturated solution).

10 मिनट Wear gloves — copper sulfate is toxic
2

Filter the hot saturated solution through filter paper to remove any undissolved particles.

5 मिनट
3

Pour a small amount into a petri dish and allow it to cool. Select the best small crystal as a seed crystal after 24 hours.

5 मिनट
4

Tie the seed crystal to a thread and suspend it from a pencil placed across the top of the beaker of saturated solution.

5 मिनट
5

Cover the beaker loosely with filter paper to allow slow evaporation. Place in a vibration-free location.

2 मिनट
6

Check daily for crystal growth. Remove any small crystals that form on the thread or beaker walls.

3 मिनट

अपेक्षित परिणाम

After 1-2 weeks, the seed crystal should grow into a large blue crystal (1-3 cm) with well-defined facets. The crystal has a triclinic shape with distinct flat faces. Faster evaporation produces many small crystals; slower produces fewer, larger ones.

सफाई

Collect excess copper sulfate solution and solid for reuse or proper disposal in heavy metal waste. Do not pour down the drain.

विवरण

श्रेणी
Crystallization
कठिनाई
Beginner (Middle School)
अवधि
30 मिनट
अनुमानित लागत
$8.00
चरण
6
सामग्री
4

अधिक प्रयोग

अतिसंतृप्ति और तात्कालिक क्रिस्टलीकरण 35 min चीनी क्रिस्टल रॉक कैंडी 25 min नमक और रेत का खंडित क्रिस्टलीकरण 35 min फिटकरी क्रिस्टल उगाना 30 min बिस्मथ इंद्रधनुष क्रिस्टल उगाना 45 min बेंजोइक अम्ल का पुनःक्रिस्टलीकरण 45 min सैलोल (फेनाइल सैलिसिलेट) का क्रिस्टलीकरण 30 min

Frequently Asked Questions

What is the objective of कॉपर सल्फेट क्रिस्टल उगाना?
धीमी वाष्पीकरण विधि का उपयोग करके बड़े, सुगठित कॉपर सल्फेट पेंटाहाइड्रेट क्रिस्टल उगाएं, अतिसंतृप्ति और क्रिस्टल जाली निर्माण प्रदर्शित करें।
How difficult is कॉपर सल्फेट क्रिस्टल उगाना?
This experiment is rated as Beginner (Middle School). It takes approximately 30 minutes to complete.
What safety precautions are needed for कॉपर सल्फेट क्रिस्टल उगाना?
Key safety precautions include: Copper sulfate is toxic if ingested; Wear gloves when handling the solution; Wash hands thoroughly after the experiment.
What materials are needed for कॉपर सल्फेट क्रिस्टल उगाना?
The main materials required are: Copper(II) sulfate pentahydrate, Distilled water, Thread or fishing line, Pencil or stick.
What results should I expect from कॉपर सल्फेट क्रिस्टल उगाना?
After 1-2 weeks, the seed crystal should grow into a large blue crystal (1-3 cm) with well-defined facets. The crystal has a triclinic shape with distinct flat faces. Faster evaporation produces many small crystals; slower produces fewer, larger ones.