sathor
Harmless
Posts: 12
Registered: 10-12-2004
Member Is Offline
Mood: No Mood
|
|
CaCl2
hi, i can't find CaCl2 at any shop, and i'm interested in it and i haven't found anything about its synthesis is it possible to
synthetise it at home????
Thanx
|
|
|
budullewraagh
Hazard to Others
Posts: 168
Registered: 1-8-2004
Location: new york
Member Is Offline
Mood: Aliphatic
|
|
clean some shells and react them with HCl cleaner, then boil the solution until your CaCl2 precipitates
|
|
|
runlabrun
Hazard to Others
Posts: 172
Registered: 4-12-2004
Member Is Offline
Mood: No Mood
|
|
CaCl2 is very common, strange you cant find it....
Damp-rid is a common brand, or any other powder crap that is designed to absorb moisture from the air is usually Calcium chloride.... check the boxes.
Otherwise to make CaCl2 would be a waste of metallic calcium, but as mentioned using shells wouldnt be a bad idea....
The inner layer of shells is usually mainly calcium carbonate so the mentioned method would work... Give it a go...
CaCO3 + 2HCl --> H2O + CO2 + CaCl2
Hope you have some luck.
-rlr
|
|
|
Magpie
lab constructor
Posts: 5939
Registered: 1-11-2003
Location: USA
Member Is Offline
Mood: Chemistry: the subtle science.
|
|
You could also react hydrated lime [Ca(OH)2] with muriatic acid:
2HCl + Ca(OH)2 --> CaCl2 + 2H2O
I purchased hydrated lime for $0.60/lb at my local farm feed store (bring your own container).
Wasn't CaCL2 being used as a highway deicer for awhile?
[Edited on 9-2-2005 by Magpie]
[Edited on 9-2-2005 by Magpie]
The single most important condition for a successful synthesis is good mixing - Nicodem
|
|
|
neutrino
International Hazard
Posts: 1583
Registered: 20-8-2004
Location: USA
Member Is Offline
Mood: oscillating
|
|
It still is.
|
|
|
Mumbles
Hazard to Others
Posts: 436
Registered: 12-3-2003
Location: US
Member Is Offline
Mood: Procrastinating
|
|
There is a brand of ice pellet by prestone that is nearly pure CaCl2. There is a thing coating of Ca(OH)2 on the outside to keep it from becoming a
giant slurry of desicating goodness.
|
|
|
tom haggen
Hazard to Others
Posts: 488
Registered: 29-11-2003
Location: PNW
Member Is Offline
Mood: a better mood
|
|
Man I feel bad for you. I wish I could buy phosphorus chlorides, elemental ceasium, barium nitrate, strontium nitrate, mercury nitrate, 100% clear
HNO3, calcium carbide, safrole, diethylamine, ergotamine, sodium azide, nitrite salts, U235, acetic anhydride, hydrazine, antimony, and so much more,
If I couldn't get good ol easy to buy CaCl2
I would be depressed.
EDIT: post 357 magnum bizzle! Can you say Dirty Harry?
[Edited on 9-2-2005 by tom haggen]
N/A
|
|
|
Esplosivo
Hazard to Others
Posts: 491
Registered: 7-2-2004
Location: Mediterranean
Member Is Offline
Mood: Quantized
|
|
Might seem strange but where I live there's no CaCl2 available OTC, but it is so easily made. And why didn't anybody mention good old marble
for this! White marble (CaCO3) will contain little impurities, and is widely available. Simply react it with HCl and boil the mess. This CaCl2 will
serve most uses, mainly as a dessicant. If you want further purity I'd go for the shells (If I were you I would buy the thing at a chem supplier instead of going around picking shells - its relatively cheap
and pure, more than you probably want it to be )
Theory guides, experiment decides.
|
|
|
Theoretic
National Hazard
Posts: 776
Registered: 17-6-2003
Location: London, the Land of Sun, Summer and Snow
Member Is Offline
Mood: eating the souls of dust mites
|
|
Simply boiling won't make a good dessicant, the hexahydrate CaCl2*6H2O isn't very good, although even concentrated CaCl2 solution is used as
a dessicant the hexahydrate won't be too powerful. Heat it strongly to get it anhydrous. Anhydroyus calcium chloride is one hell-like dessicant!
|
|
|
Magpie
lab constructor
Posts: 5939
Registered: 1-11-2003
Location: USA
Member Is Offline
Mood: Chemistry: the subtle science.
|
|
I just bought 5 lbs of "Guardex" "calcium hardness increaser" for swimming pools for $7. The label says 100% CaCl2.
I also picked up 2.5 lbs of "Leisure Time" "pH Down" for spas for $4.50. The label says 95% NaHSO4 + 5% inert ingredients. I
just love shopping for lab supplies. Especially when I intend to use it for a use it was not intended for. 
The single most important condition for a successful synthesis is good mixing - Nicodem
|
|
|
guy
National Hazard
Posts: 982
Registered: 14-4-2004
Location: California, USA
Member Is Offline
Mood: Catalytic!
|
|
Anhydrous Calcium chloride is sold in tropical fish stores for increasing calcium levels in water. They also have calcium hydroxide which they call
kalkwasser
|
|
|
darkflame89
Hazard to Others
Posts: 255
Registered: 1-3-2004
Location: With probability 1, "somewhere" in this
Member Is Offline
Mood: No Mood
|
|
Not only that, Calcium chloride anhydrous is sold in the home dessicators, at least down here in Singapore were the weather is humid.
You can always make some by dissolving chalk or egg shells in hydrochloric acid.
Ignis ubique latet, naturam amplectitur omnem.
|
|
|
chloric1
International Hazard
Posts: 1147
Registered: 8-10-2003
Location: GroupVII of the periodic table
Member Is Offline
Mood: Stoichiometrically Balanced
|
|
| Quote: | | I just love shopping for lab supplies. Especially when I intend to use it for a use it was not intended for. |
Magpie you might want to take a closer look at aquarium supplies. I have seen activated charcoal of coarse but also zeolite! This may be useful for
ioin exchenge. If not, surely a catalyst support.
Fellow molecular manipulator
|
|
|
Magpie
lab constructor
Posts: 5939
Registered: 1-11-2003
Location: USA
Member Is Offline
Mood: Chemistry: the subtle science.
|
|
I'll remember that chloric1. I have checked the aquarium places and found a nice 2 gpm pump for around $20. This would probably work fine for
cooling water recirculation should I not want to use my water supply/sink. I have also seen the zeolite at a Koi shop. I guess a Koi pond is an
aquarium on an industrial scale.
I got the best deal on some activated carbon at a health foods store.
It really is surprising where you find some chemicals. I've got an order in for a lb of sodium benzoate from a Mom & Pop that sells it for
use in preserving carp bait. 
The single most important condition for a successful synthesis is good mixing - Nicodem
|
|
|
neutrino
International Hazard
Posts: 1583
Registered: 20-8-2004
Location: USA
Member Is Offline
Mood: oscillating
|
|
Was the carbon sold as anything in particular or just ‘activated carbon’?
|
|
|
cyclonite4
Hazard to Others
Posts: 480
Registered: 16-11-2004
Location: is unknown
Member Is Offline
Mood: Amphoteric
|
|
The activated carbon I buy from the aquarium store is sold as 'filter carbon'.
\"It is dangerous to be right, when your government is wrong.\" - Voltaire
|
|
|
Magpie
lab constructor
Posts: 5939
Registered: 1-11-2003
Location: USA
Member Is Offline
Mood: Chemistry: the subtle science.
|
|
Neutrino: "activated charcoal powder" for $25/lb.
The single most important condition for a successful synthesis is good mixing - Nicodem
|
|
|
Twospoons
International Hazard
Posts: 1326
Registered: 26-7-2004
Location: Middle Earth
Member Is Offline
Mood: A trace of hope...
|
|
Have you checked under the common name "chloride of lime" ?
|
|
|
cyclonite4
Hazard to Others
Posts: 480
Registered: 16-11-2004
Location: is unknown
Member Is Offline
Mood: Amphoteric
|
|
I get my activated carbon at $14/kg, similar price to Magpie.
EDIT: WOOHOO!! 200th post-iversary
[Edited on 21-2-2005 by cyclonite4]
|
|
|
Magpie
lab constructor
Posts: 5939
Registered: 1-11-2003
Location: USA
Member Is Offline
Mood: Chemistry: the subtle science.
|
|
cyclonite-4: Your price is much better - 1 kg = 2.2 lb. But mine is food
grade - whether that is better or not I have no idea. I haven't even looked at it yet. But the clerk said it was very difficult to repackage as
it is so fine. I took that as a good sign.
The single most important condition for a successful synthesis is good mixing - Nicodem
|
|
|
chloric1
International Hazard
Posts: 1147
Registered: 8-10-2003
Location: GroupVII of the periodic table
Member Is Offline
Mood: Stoichiometrically Balanced
|
|
| Quote: | Originally posted by Magpie
I'll remember that chloric1. I have checked the aquarium places and found a nice 2 gpm pump for around $20. This would probably work fine for
cooling water recirculation should I not want to use my water supply/sink. I have also seen the zeolite at a Koi shop. I guess a Koi pond is an
aquarium on an industrial scale.
I got the best deal on some activated carbon at a health foods store.
It really is surprising where you find some chemicals. I've got an order in for a lb of sodium benzoate from a Mom & Pop that sells it for
use in preserving carp bait. |
HAHAHA!
The sodium benzoate story is just too sweet! I like that one. Oh i have tried the "Little Giant pumps" and they work quite nicely for
ruuning water through your condensor. I would use mine but I actually own property now and I got a good deal on a goose neck faucet with a serrated
nozzle. I put all the seals in last December and hooked it up to my spigot and it works good! And the force of the water! All that is
left is to put the legs on the laundry sink its attached too and get some rubber hose and tiewraps and I got fully functional laboratory sink!
P.S I didn't realize I had 200 posts! Woohoo!
[Edited on 2/21/2005 by chloric1]
Fellow molecular manipulator
|
|
|
![[*]](images/xpblue/default_icon.gif){kind=icon}
