#16 in Lab chemicals
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Reddit mentions of Duda Energy Fgphos 1 quart/950 mL 85% Food Grade Phosphoric Acid
Sentiment score: 2
Reddit mentions: 2
We found 2 Reddit mentions of Duda Energy Fgphos 1 quart/950 mL 85% Food Grade Phosphoric Acid. Here are the top ones.
or
- Food grade, 85 percent concentration in water
- May be used for making molar solutions for soap titrations in biodiesel
- Hdpe bottle with children safety cap
Features:
Specs:
| Number of items | 1 |
| Release date | January 2020 |
| Weight | 4 Pounds |
Trying to extract your own phosphoric acid without a lab and appropriate training would be idiotic, but you easily can buy food-grade phosphoric acid.
They sell it on amazon: http://www.amazon.com/Quart-950ml-Grade-Phosphoric-Remover/dp/B00KC74ETO/ref=sr_1_1?ie=UTF8&qid=1413237356&sr=8-1&keywords=phosphoric+acid#productDetails
pH probes are not expensive, either: http://www.amazon.com/American-Marine-PINPOINT-pH-Probe/dp/B001EHJO64/ref=sr_1_1?ie=UTF8&qid=1413237550&sr=8-1&keywords=ph+probe
I'm not saying put it behind your bar and jigger it out into your drinks, but is there really that much risk from getting some appropriate safety equipment and diluting this down and mixing it with some sodium citrate, a common ingredient in molecular gastronomy for reducing acidity? I have used sodium citrate to increase the ph of several of my drinks with no issues.
As long as you have a very accurate scale, it is not hard to calculate the appropriate ratios and then mix them. Just make sure you wear some durable rubber gloves and some goggles. Spend a little time googling about lab safety.
Admittedly, this acid is EXTREMELY strong, but as long as you have respect for the chemicals you're handling, it is quite safe to manipulate these things at home. Even if you haven't done anything like this before, I think you could reasonably spend an afternoon on this project, and come away with a viable solution (no pun intended) to your acid phosphate problem.
I bought ~250 mL of 5-10% phosphoric acid at the LHBS for $5. The water here is super hard, so I needed like 100 mL to get to a pH of 5.5. Super costly, same with lactic since it's a weak acid. I ended up buying 1L of 85% phosphoric on Amazon and only need 6 mL per 2 gallon batch.