Sciencemadness Discussion Board

CaCl2 Source Found

kyro8008 - 9-9-2005 at 10:03

Hi, ive found a source for CaCl2 in the UK in a most unlikely place.

Pop into your local Woolworths and head for the DIY section. They sell these "de-humidifiers" which are essentially CaCl2 in a box with holes in. They sell refill packs for these, which are 0.5Kg sealed bags, priced at £1.50 each.

I personally thought this was a good price and have never found it anywhere else in the shops.

What do other people think about the price?

vulture - 9-9-2005 at 12:45

That would be 4.50€ per kilogram, which is a ripoff. I pay 4€ per 5kg.

Furthermore, this isn't exactly a miraculous discovery, now is it?

[Edited on 9-9-2005 by vulture]

kazaa81 - 11-9-2005 at 04:54

I think which prices that high as kyro have found one can put CaCO3 in strong HCl (30%, less water) and then boil to evaporate water....the only solid product in CaCl2 in water, as CO2 go off...

12AX7 - 11-9-2005 at 10:09

Too bad it decomposes on dehydration, like all(?) Lewis acids.

Tim

wa gwan - 11-9-2005 at 10:20

It regenerates just fine.....quickest in the microwave.
Calcium chloride is also used to harden water so pool and spa stores will have it.