MR AZIDE
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Posts: 64
Registered: 21-5-2012
Location: UNITED KINGDOM
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Mood: Fizzing
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Moisture absorber refill stuff.
Another OTC chemical find: ( UK people)
This is a big tub of crystals that I saw In a hardware store today.
Its for refilling those plastic moisture absorbers, that you put in a space to dehumidify it.
http://www.wilkinsonplus.com/insulation/kilrock-refill-for-moisture-traps-1kg/invt/0135524/
I cant find an MSDS, but on the back of the tub ,it seems its mostly, if not all full of CaCl2 powder / crystals, according to what I read
on the back of the tub.
It can be bought in 1 and 2.5 Kg amounts.
Might be a nice easy access and cheap way of making freezing mixtures etc......
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Hexavalent
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I'm certain that this has been covered somewhere before.
How pure is the calcium chloride? Suitable for experiments, do you think?
"Success is going from failure to failure without loss of enthusiasm." Winston Churchill
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MR AZIDE
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Posts: 64
Registered: 21-5-2012
Location: UNITED KINGDOM
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Probably be OK for ice freezing mixtures, attaining a much lower temp than NaCl ice freezing mixtures.
Usefull for a dessicator/ drying agent.
I suppose if it is impure, it could be recrystallized, although it is very soluble.
We need an MSDS!!!!
Some moisture absorbers contain CaO.
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Hexavalent
International Hazard
Posts: 1564
Registered: 29-12-2011
Location: Wales, UK
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Mood: Pericyclic
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Dp us a favour; add some to liquid water. If it fizzes and reacts, then its probably calcium oxide. If it dissolves, and then a precipitate forms when
you add some sodium sulfate or carbonate solution then it's likely to be calcium chloride.
"Success is going from failure to failure without loss of enthusiasm." Winston Churchill
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Pyro
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i bought some of that stuff lately, it comes in prills that look a lot like calcium oxide, but when i break em in half there is just a thin crust of
powdery stuff, the rest is a crystal. it will be fine for drying substances. but I don't know about as a reagent
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