Sodium Hydroxide Source
- Thread starter Reefen
- Start date
Look up in the yellow pages for "chemicals" and call your local companies.
Many won't sell to individuals because of the nature of that chemical, but I had two local companies that would sell to me when I used to recharge my resins.
You have to buy a large bag usually, about 20 kilo, but it's not expensive.
Definitely a chemical that needs proper handling and to be kept away from kids, animals, and anyone else that doesn't know the properties and hazards of sodium hydroxide.
Many won't sell to individuals because of the nature of that chemical, but I had two local companies that would sell to me when I used to recharge my resins.
You have to buy a large bag usually, about 20 kilo, but it's not expensive.
Definitely a chemical that needs proper handling and to be kept away from kids, animals, and anyone else that doesn't know the properties and hazards of sodium hydroxide.
What do you want to use it for?
Red Devil Lye at a grocery store is sodium hydroxide.
Red Devil Lye at a grocery store is sodium hydroxide.
That's a pretty drastic tool, but it will work that way. Same as limewater, without the calcium.
Sodium hydroxide is NaOH, calcium hydroxide is Ca(OH)2. Both add hydroxide.
Sodium hydroxide is completely soluble in almost any amount of fresh water. So you can easily make a solution that is 50% by weight.
The concerns are that it is very easy to drive the pH too high, and it does not add any calcium the way limewater does.
Sodium hydroxide is completely soluble in almost any amount of fresh water. So you can easily make a solution that is 50% by weight.
The concerns are that it is very easy to drive the pH too high, and it does not add any calcium the way limewater does.
I do not know if it will have similar phosphate precipitating effects as limewater, but it might.
No, you cannot put it into limewater as you will prevent the calcium hydroxide from dissolving.
No, you cannot put it into limewater as you will prevent the calcium hydroxide from dissolving.
The advantages are a larger pH raising effect, and a higher concentration is possible in the stock solution.
The disadvantage is it may be harder to get good quality sodium hydroxide (food grade, FCC, or USP/BP grades), the pH raising effect may be so high that it needs to be added slowly like limewater, and it may push pH too high even if dosed slowly.
The disadvantage is it may be harder to get good quality sodium hydroxide (food grade, FCC, or USP/BP grades), the pH raising effect may be so high that it needs to be added slowly like limewater, and it may push pH too high even if dosed slowly.
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