Calcium Bromide (Anhydrous) Not Dissolving?

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The discussion revolves around the difficulty in preparing a 0.1M solution of Calcium Bromide (CaBr2) in DI Millipore Grade Water. Despite the high solubility of CaBr2, the user is encountering a suspension with whitish particulates and some thread-like objects, indicating incomplete dissolution. Participants inquire about the received date of the CaBr2 and the texture of the powder, questioning whether it is smooth or clumpy, which could affect solubility. The focus is on troubleshooting the preparation process to achieve a clear solution.
guguma
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Hi All,

So, I am having trouble with a solution I am trying to prepare in the lab which baffles me and here it is:

--Water used is DI Millipore Grade Water--

I have Calcium Bromide (Anhydrous) %99.5 from Alfa-Aesar, CaBr(2) is supposed to be highly soluble about 125g/100ml at 0 Degrees Celsius. I am just trying to make a 0.1M solution approximately 20g/L, yet I cannot?

What I see is a suspension like solution of whitish particulates (and even a couple of thread like objects), no matter how much I stir/heat the solution.

Any Insights?

Thank You.
 
Chemistry news on Phys.org
Working on the basics here.

What is the received date on the CaBr2?

Is the power smooth or clumpy?
 

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