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I have searched for chemical companies and browsed their websites and databases, emailed them without response, etc. Why is it so difficult to get pure chemicals? Or am I just bad at finding the way?

I am looking for aluminit (Al2SO4(OH)4·7H2O) to mix into mortar as a curing accelerator and sodium nitrate/Chile saltpeter (NaNO3) to use as a freezing point depressant, also in mortar.

The latter can be bought from Finja for 500 kronor per 10-kilogram bag under the name "Bemix cold concrete additive," but I suspect that if you buy from a chemical manufacturer, you have the same product without the brand at a fraction of the price. Now Finja does with sodium nitrate what Knarrkvitt does with talcum powder. Kind of.

Does anyone know where you can email/call/go/teleport to procure these things?

Or does anyone know someone who knows someone who knows someone who knows?
 
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Can be difficult to purchase chemicals if you don't have a company. Then they might be uninterested if the volumes aren't large enough.

Call a salesperson at the company you found, much safer than emailing.
 
It's tricky. A paint shop can usually help.
 
Here you can see links and phone numbers to companies that sell and distribute chemicals
http://www.krc.su.se/page.php?pid=136
It is intended for chemistry teachers, so maybe someone has what you are looking for.
 
After having been chasing pool chemicals in large containers for a while, I can say that it's easy to find companies that sell chemicals, but hard to find one that sells to private individuals.
 
Anyone know where to find Polyvinyl Alcohol (PVA)? I've read that you can use it to increase the viscosity of water, building myself a somewhat special glitter water lamp :) Using something that can rot/mold etc. is not a very smart solution.

Polyvinyl Alcohol (PVA) is the same thing that surrounds dishwasher tablets which then dissolves in water.
 
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Thank you! I assume that product is diluted with water since it is in liquid form.
 
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