what chemicals aside from bicarb soda are present in pool ph buffer?

hello

i just went to the dump shop and picked up a 4kg bag of bicarb soda as ph buffer for free, and when i got home, i noticed it smelt of ammonia, so i though it might have some ammonium carbonate, so i figured i could get rid of it by adding some water to the ph buffer and then boiling it.

however, i have noticed that it turned my hands blue, and although the blue washed off, i am now hazardous as to what else may be in thr ph buffer, although it states sodium bicarbonate is the active ingredient.

i plan on dividing it, selling 2kg on my site in 250g batches for $2 each, and the other i plan to use as a sodium source for my sodium reduction cell.

i need to know though, what the other chemicals in the pool buffer are so i can state the purity of the ph buffer. also will anything lebeled as "soda ash" be pure sodium carbonate?

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orksecurity6 years ago
Technically, it's a proprietary mixture. You could try asking the manufacturer what's in it. Normally it's just bicarb, but it might also contain borax or one of several other active chemicals, and gods know what's there as inactive.

Plus, if you picked it up as second-hand pool supplies, you don't know what else it may have been contaminated with. Gods know the chemicals in our pool's storage locker sometimes got splashed around pretty well.


Pure enough for a swimming pool, where you're diluting it with tens of thousands of gallons of already-impure water, is not necessarily pure enough for any other use.

If a label doesn't state purity, don't count on purity. If the contain has been opened, don't count on purity. If you don't know the container's history, don't count on purity.


I odn't think you can sell it safely until and unless you figure out exactly what's in it or get a lawyer to write you an EXTREMELY careful disclaimer of the fact that purity, and indeed contents, can not be guaranteed. In other words, I don't think you can sell it, period. Especially since the stuff is easily available and cheap.
oldmanbeefjerky (author)  orksecurity6 years ago
hmm, perhaps i will need to try just buying pool bicarb labeled as bicarb with no other ingredients to divide and sell on my site. still, i shall look up the brand name to find out what other chemicals are in it
If you're going to be dividing and selling it, the best approach is to bypass the pool supply companies and purchase it directly from a chemical supply house. They'll be able to guarantee whatever degree of purity you want (and are willing to pay for), up to and past USP grade.

Or purchase from one of the businesses that supplies commercial bakeries. They've probably got 50-pound bags of the stuff, food-grade.

Those would probably be cheaper too.

(Question: Given how cheap this stuff is over the counter in supermarkets, why are you trying to make up your own packages and sell it on your site? Sounds like a losing proposition to me.)
oldmanbeefjerky (author)  orksecurity6 years ago
well, im trying to make it as cheap as possible, and with supermarkets charging around $5 per 250g, anyone who is may need bicarb soda would preferentially buy from me, along with some other order, as i wouldn't expect someone to pay that much in total (price + shipping) for that amount of bi-carb soda, but if they needed it and already were buying something else, well then its better to buy from me than the store.

i have calculated my profits, and so long as im the cheapest, but not beyond a certain point, i will make money and have the lowest prices. for me its just really fun to sell stuff online, i dont care that im not making big bucks, so long as im getting profits, its all good.

another thing is that i am also going to be using my bicarb soda to make sodium metal with my new furnace, by reducing molten sodium carbonate with carbon, to get sodium gas and carbon monoxide which ill pass through mineral oil.

sodium which i also plan on selling but in the form of sodium dust infused wax which when you melt it, melts the sodium which all clumps together and can be easily extracted, which i have found is legal, by courier, but unfortunately considered a plastic explosive by customs, which is stupid.

anyway thanks everyone
frollard6 years ago
What EXACT product did you pick up? Is it branded at all? if it was, it will have an associated Material Safety Data Sheet -- which can be used to look up the ingredients.

http://www.google.ca/search?source=ig&hl=en&rlz=1G1ACPW_ENCA437&q=pool+buffer+msds&aq=f&aqi=&aql=&oq=

found
http://www.poolpride.co.nz/phbuffer.shtml

which has
http://www.poolpride.co.nz/pdfs/MSDS0409/Poolpride%20pH%20Buffer%20MSDS.pdf
and
http://www.poolpride.co.nz/pdfs/pH%20Buffer%20INFO.pdf

I only see bicarb...but that's just this particular brand. Check yours with a similar search.
MSDS: Interesting thought. Certainly worth a try, subject to the caveats I mentioned earlier about not knowing what happened to it between there and end-user.