कैल्शियम ज्वाला परीक्षण

नारंगी-लाल ज्वाला से कैल्शियम की पहचान

Flame Tests Beginner (Middle School) 15 मिनट ~$5.00

उद्देश्य

कैल्शियम आयनों द्वारा उत्पन्न ईंट-लाल से नारंगी-लाल ज्वाला का अवलोकन करें, जो चूना पत्थर, संगमरमर और हड्डियों में पाया जाने वाला एक सामान्य तत्व है।

पृष्ठभूमि

Calcium produces a distinctive brick-red to orange-red flame color. The emission results from electronic transitions in calcium atoms excited by the flame energy. Calcium is one of the most abundant elements in the Earth's crust and its flame test is a useful diagnostic tool in mineral identification.

सुरक्षा चेतावनियाँ

  • Wear safety goggles at all times
  • Keep hair tied back near open flames
  • Handle HCl with care

आवश्यक PPE

goggles lab_coat

सामग्री

  • Calcium chloride (CaCl₂) (1 g)
    Common road de-icer
  • Hydrochloric acid (HCl) (10 mL)
    1M concentration
  • Distilled water (50 mL)
    For cleaning

उपकरण

Bunsen burner Nichrome wire loop Watch glass Forceps

प्रक्रिया

1

Clean the nichrome wire by dipping in HCl and heating until no color appears.

2 मिनट
2

Place calcium chloride on the watch glass and collect a sample on the clean wire.

1 मिनट
3

Hold the wire in the Bunsen burner flame and observe the flame color.

2 मिनट
4

Record the brick-red to orange-red color and note how it differs from strontium and lithium.

2 मिनट

अपेक्षित परिणाम

A brick-red to orange-red flame should appear. The color is less vivid than strontium's scarlet and more orange than lithium's crimson. Calcium's flame is moderate in intensity.

सफाई

Clean the wire with HCl. Dispose of chemicals per lab protocol.

Frequently Asked Questions

What is the objective of कैल्शियम ज्वाला परीक्षण?
कैल्शियम आयनों द्वारा उत्पन्न ईंट-लाल से नारंगी-लाल ज्वाला का अवलोकन करें, जो चूना पत्थर, संगमरमर और हड्डियों में पाया जाने वाला एक सामान्य तत्व है।
How difficult is कैल्शियम ज्वाला परीक्षण?
This experiment is rated as Beginner (Middle School). It takes approximately 15 minutes to complete.
What safety precautions are needed for कैल्शियम ज्वाला परीक्षण?
Key safety precautions include: Wear safety goggles at all times; Keep hair tied back near open flames; Handle HCl with care.
What materials are needed for कैल्शियम ज्वाला परीक्षण?
The main materials required are: Calcium chloride (CaCl₂), Hydrochloric acid (HCl), Distilled water.
What results should I expect from कैल्शियम ज्वाला परीक्षण?
A brick-red to orange-red flame should appear. The color is less vivid than strontium's scarlet and more orange than lithium's crimson. Calcium's flame is moderate in intensity.