https://en.wikipedia.org/wiki/Flame_test
Samples are usually held on a platinum wire cleaned repeatedly with hydrochloric acid to remove traces of previous analytes.[1] The compound is usually made into a paste with concentrated hydrochloric acid, as metal halides, being volatile, give better results. Different flames should be tried to avoid wrong data due to "contaminated" flames, or occasionally to verify the accuracy of the color. In high-school chemistry courses, wooden splints are sometimes used,
mostly because solutions can be dried onto them, and they are inexpensive. Nichrome wire is also sometimes used.[1] When using a splint, one must be careful to wave the splint through the flame rather than holding it in the flame for extended periods, to avoid setting the splint itself on fire. The use of cotton swab[2] or melamine foam (used in "eraser" cleaning sponges)[3] as a support have also been suggested.
Director of Photography, Script, and Edit by - Yashaswin Dineth Bamunusingha
Concept : Mr. Dulan Madurange
Narration : Shavindya Rathnayake
Resources : National Institute of Education of Sri Lanka : Chemistry Practical Hand Book
Location : Mahinda Rajapaksha College A/L Chemistry Lab 1
A Group Project by 12 B3 (A/L 2020 Batch)
Copyright © 2019 by Mahinda Rajapaksha College Chemical Society
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