스트론튬 불꽃 반응

진홍색 불꽃으로 스트론튬 확인하기

Flame Tests Beginner (Middle School) 15 분 ~$10.00

목표

스트론튬 이온이 나타내는 밝은 진홍색 불꽃을 관찰하고, 빨간색 불꽃놀이 및 비상 신호탄에 사용되는 이유를 이해한다.

배경

Strontium compounds produce a vivid scarlet-red flame when heated, with primary emission lines at 460.7 nm and 707.0 nm. This distinctive red is widely used in pyrotechnics for red fireworks, road flares, and military signal flares. Strontium's flame color is more brilliant and more orange-red compared to lithium's deeper crimson.

안전 경고

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

필수 개인 보호 장비

goggles lab_coat

재료

  • Strontium chloride (SrCl₂) (1 g)
  • Hydrochloric acid (HCl) (10 mL)
    1M concentration
  • Distilled water (50 mL)
    For cleaning

장비

Bunsen burner Nichrome wire loop Watch glass Forceps

실험 절차

1

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

2 분
2

Place strontium chloride on the watch glass and pick up a sample on the clean wire.

1 분
3

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

2 분
4

Compare the scarlet-red color with lithium (crimson) if previously tested.

2 분
5

Record observations noting intensity and hue differences from other red-producing elements.

1 분

예상 결과

A bright scarlet-red flame should appear, distinctly more orange-red than lithium's crimson. The color is vivid and persistent, easily distinguished from other metal flame colors.

정리

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

세부 정보

카테고리
Flame Tests
난이도
Beginner (Middle School)
소요 시간
15 분
예상 비용
$10.00
단계
5
재료
3

더 많은 실험

나트륨 불꽃 반응 15 min 구리 불꽃 반응 15 min 리튬 불꽃 반응 15 min 바륨 불꽃 반응 20 min 칼륨 불꽃 반응 20 min 칼슘 불꽃 반응 15 min 불꽃 반응 비교 실험 45 min

Frequently Asked Questions

What is the objective of 스트론튬 불꽃 반응?
스트론튬 이온이 나타내는 밝은 진홍색 불꽃을 관찰하고, 빨간색 불꽃놀이 및 비상 신호탄에 사용되는 이유를 이해한다.
How difficult is 스트론튬 불꽃 반응?
This experiment is rated as Beginner (Middle School). It takes approximately 15 minutes to complete.
What safety precautions are needed for 스트론튬 불꽃 반응?
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 스트론튬 불꽃 반응?
The main materials required are: Strontium chloride (SrCl₂), Hydrochloric acid (HCl), Distilled water.
What results should I expect from 스트론튬 불꽃 반응?
A bright scarlet-red flame should appear, distinctly more orange-red than lithium's crimson. The color is vivid and persistent, easily distinguished from other metal flame colors.