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Author: Subject: Preparation of Samarium Salicylate and Other Experiments
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[*] posted on 12-10-2018 at 20:15
Preparation of Samarium Salicylate and Other Experiments


Samarium salicylate was prepared by the reaction of solutions of sodium salicylate with samarium chloride. Upon the addition of the sodium salicylate to the samarium solution, a white precipitate formed. This gel like material was observed to be lighter in color to the corresponding oxide. When this wet precipitate was heated, it left behind a black residue.

Further heating of a suspension of samarium salicylate, in dilute hydrochloric acid, yielded a light yellow-green solution which when cooled gave a white precipitate.

When the precipitate was added to 10% ammonia solution, it dissolved giving a light orange color.

Samarium salicylate has been prepared by simular methods in the past and using aminosalicylate.

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Samarium chloride was added to a solution of phenol in dry ISPA. A precipitate formed which was confirmed by a control to be phenol.

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Samarium oxide was stirred in a weak solution of salicylic acid. No reaction was observed.

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Samarium oxide was heated with wet picric acid. No detonation was observed, however the picric acid did burn.





Any other recommendations for samarium chemistry?

Tomorrow I may try reacting a solution of picrate with samarium chloride.




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[*] posted on 12-10-2018 at 21:37


Sounds like fun.
IIRC, Sm has a nice flame test.

[edit] Gah! I don't usually make errors like that. Thanks, unionised.

[Edited on 14-10-2018 by j_sum1]
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[*] posted on 13-10-2018 at 03:12


Quote: Originally posted by j_sum1  
Sounds like fun.
IIRC, Sa has a nice flame test.

Who or what is Sa?


I'm fairly sure that Samarium (Sm) doesn't give much of a flame test.
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[*] posted on 13-10-2018 at 07:52


When placed into a flame it game an orange color



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[*] posted on 13-10-2018 at 08:09


Everything gives an orange colour- it's due to sodium.
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[*] posted on 13-10-2018 at 08:32


Samarium should give a bright red flame color, approximately the intermediate of lithium's and strontium's. I've witnessed it personally.



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[*] posted on 13-10-2018 at 13:49


Its probably being overwhelmed by the sodium.

Still no luck making samarium picrate. I can not get a precipitate when mixing sodium picrate with samarium chloride.





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