Calcium Bromide (Anhydrous) Not Dissolving?

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SUMMARY

The forum discussion centers on the solubility issues encountered when preparing a 0.1M solution of Calcium Bromide (Anhydrous) from Alfa-Aesar, which has a solubility of approximately 125g/100ml at 0 degrees Celsius. Despite using DI Millipore Grade Water, the user reports a suspension with whitish particulates and thread-like objects, indicating incomplete dissolution. The discussion highlights the importance of the physical state of the Calcium Bromide powder, questioning whether it is smooth or clumpy, which may affect solubility.

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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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