Thanks, fkshiu.
Don't mean to be offensive to BRS. However, I've googled and got a statement from someone named as Snarkys with an occupation in TwoPartSolution.com on the RC, dated 12/19/2007 :
link:
http://www.reefcentral.com/forums/sh...readid=1275023
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Bromide and Dow Calcium Chloride, the sky is not falling : )
Recently we have been receiving a bunch of questions about the manufacturing changes at Dow and the new elevated bromide levels in their calcium chloride, we would like to address this.
The brine that Dow uses to make calcium chloride has always had these levels of bromide. Recently Dow has made the decision to stop the processing step that removes bromide from their calcium chloride. This means that any new material will contain what we believe to be unacceptable amounts of bromide and will not be using any of the new Dow material.
All of the calcium we sell was produced by Dow prior to these changes and does not contain the new elevated levels of Bromide. The change to the “food grade” material was made in 2007. We have a huge stockpile of material produced prior to the changes and there will be no shortage of availability for a very long time. In addition we have already sourced other high quality manufactures for when this runs out.
Please keep in mind that while Dow is one of the major producers here in the US they are not the only one. There are also several high quality international options. This is going to have very little impact on the aquarium industry. The main impact will be on the do it yourself aquarist looking for 50 pound sacks. Luckily most of us have no need for 50 pound sacks and couldn’t use that much in a single lifetime. Dow was the most readily available product to the consumer and it may be difficult to find a suitable replacement in the retail sector with the same wide availability. Please be aware a large portion of retail calcium chloride found in hardware and pool stores is repackaged Dow product. You may want to evaluate the risk verses reward with trying different brands , for most people the savings is a couple bucks a month.
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I shall try to find info for /further newer development. I gotta to have lunch now. Is 2:48pm now.