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Help with flame test please.

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

scitec


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

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

marshmandr


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

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

PS@ecg2


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.

4Help with flame test please. Empty Thank you. on Mon Jul 22, 2013 7:23 pm

scitec


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

j

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