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Help with flame test please.

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1 Help with flame test please. on Thu Jul 18, 2013 8:43 pm

I am new'ish to science technician role and i need to set up the flame test with wire loops, i was wondering what chemicals give the best results.

Jason

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2 Re: Help with flame test please. on Fri Jul 19, 2013 8:29 am

Metal chlorides eg:
Potassium chloride, strontium chloride, copper chloride, sodium chloride. Off top of my head

Lilac, red, blue, orange flames respectively

Give out HCL acid to clean wires - concentration of depends on age group

Andy

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3 Re: Help with flame test please. on Fri Jul 19, 2013 7:50 pm

Unless the teacher really wants loops, you get a better result with wooden spills soaked in the solutions in test tubes. You can put out one per pupil per solution 9about 0.5M) conveniently in a rack and it avoids them making a mess with powders of the salts, having too much on the loop and it dropping off to bung up the Bunsen etc.

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4 Thank you. on Mon Jul 22, 2013 7:23 pm

Cheers PS@ecg2 and marshmandr, you have both been a big help.

j

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