Hello,
I'm trying to use 2,6-Naphthalenedisulfonic acid disodium salt for synthesis of some inorganic clusters. But having difficulties to make it soluble in water. The manufacturer website said it's miscible in water and should be a white powder. But I purchased it from different vendor and they are kinds of dirty whitish/brown powder and forms brown color solution with dirty coagulant like precipitate (at 0.1M).
Please let me know if someone is facing the same issue and know the strategy to solve the problem.
Thanks,
Shohel
Hi,
As you mentioned that you purchased from a different vendor and it doesn't have same physical appearance that simply means that it is adulterated with some impurity which might hinders its solubility in water.
The only way is that you dissolve your impure compound in water and then filter the resulting mixture. I believe that the salt will solubilize in water whereas the impurities will filter out. Later you can check the concentration of salt in filtrate.
Good Luck
Dear Mohammad Sohel
I think this compound contains sodium chloride so in the reactions that the material is used 2,6-Naphthalenedisulfonic acid disodium salt must pay attention to calculated molecular weight. See the Aldrich Book Catalog. The possibility of your material is not pure. Measure the melting point of your compound and compare it with what is in the Aldrich book.
Regards
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