Does anyone know where to buy food /pharmacutical grade sodium hydroxide in CM?

Thanks

David

Union science on Suthep road lists it for sale on website.

http://www.unionsci.com/%E0%B8%AA%E0%B8%B2%E0%B8%A3%E0%B9%80%E0%B8%84%E0%B8%A1%E0%B8%B5/%E0%B8%AA%E0%B8%B2%E0%B8%A3%E0%B9%80%E0%B8%84%E0%B8%A1%E0%B8%B5%E0%B8%97%E0%B8%B5%E0%B9%88%E0%B9%83%E0%B8%8A%E0%B9%89%E0%B9%83%E0%B8%99%E0%B8%AD%E0%B8%B8%E0%B8%95%E0%B8%AA%E0%B8%B2%E0%B8%AB%E0%B8%81%E0%B8%A3%E0%B8%A3%E0%B8%A1%20(%20Industrial%20Grade%20Chemicals%20).html

I think World Chemical (next to the PSI building on Mahidol Road) has it as well.

Thanks for that... Will be off shortly

Isn't that what Thais always buy at the Thai markets (plastic shops) to put in the water tanks? I always see them buying these crystals - g/f included but she has never been able to find a good translation of what they are. A Thai friend said he thought it was lye in English but he wasn't 100% sure.

Isn't that what Thais always buy at the Thai markets (plastic shops) to put in the water tanks? I always see them buying these crystals - g/f included but she has never been able to find a good translation of what they are. A Thai friend said he thought it was lye in English but he wasn't 100% sure.

If it is, it might not be food grade.

Not food grade at Union either. (Didn't stop me trying it though, and no side effects yet that I've noticed!)

Not food grade at Union either. (Didn't stop me trying it though, and no side effects yet that I've noticed!)

I believe it's reagent grade at Union Science. Reagent grade is purer than food grade.

Reagent grade is often purer than food grade but might contain stabilizers that could be a problem for human ingestion.

Might want to check into that.

What is OP using it for?

People consume Sodium Hydroxide? Eh? What is going on here? Why would you do that?

Pretzels!

Reagent grade is often purer than food grade but might contain stabilizers that could be a problem for human ingestion.

Might want to check into that.

What is OP using it for?

I believe that stabilizers are only used when chemical is sold in liquid form..

There is a chemical supply shop near the intersection of Suthep Road and Nimmanheimen Road. You would probably have to check the label specifications w.r.to heavy metals to determine whether the product conforms with "food grade". Usually, analytical reagent "A.R." grade specifications will be more stringent than food grade specs.

There is a chemical supply shop near the intersection of Suthep Road and Nimmanheimen Road. You would probably have to check the label specifications w.r.to heavy metals to determine whether the product conforms with "food grade". Usually, analytical reagent "A.R." grade specifications will be more stringent than food grade specs.

That's Union Science as discussed earlier in this thread.