Saturday, December 04, 2010

Potassium bicarbonate from PureBulk.com: Palatable, very concentrated (Rev B)

I obtained some potassium bicarbonate from PureBulk.com, and according to the label, a single cubic centimeter contains 1.159 g of potassium bicarbonate. This converts to 5.709 g/teaspoon (US). So, there would be 2.5 g (the daily total dose recommended in a study referenced in a previous entry) in 0.437 teaspoon, or three doses of 0.146 tsp (1/6.8 tsp). I tried 1/8 tsp. in water on an empty stomach, and found it to have a neutral taste and to cause slight nausea.

Because of the concentration of this product and the dangerous effects of overdose, it must be kept out of the reach of young children. Older children should be informed about its use and hazards. I suggest using an old prescription bottle with a childproof cap for daily use (in case you accidentally leave it where a child can reach it), and keeping the main supply out of reach. I'd also print a label, such as the following, and tape it to the prescription bottle:

Potassium Bicarbonate 1.16 g/cc
OVERDOSE CAN BE FATAL
Suggested adult dose: 1/8 tsp 3x daily
Keep out of the reach of children

Potassium Bicarbonate and Hygroscopy

After sitting in a bottle for a couple of days, the potassium bicarbonate started to clump up, and then I discovered that it is known to be hygroscopic. Considering the low humidity in this area at this time, I shudder to think what would have happened during a humid time of year. So, it might be necessary to get a capsule filling machine and put it in capsules, and perhaps to get some dessicant to keep the capsules dry.

Rev A: Eliminated pointless conversion to tsp/g.
Rev B: Added notice regarding potassium bicarbonate's hygroscopy, and potential need to encapsulate it.