Do instant cold packs have ammonium nitrate?

Do instant cold packs have ammonium nitrate?

Speaking of refrigeration and coldness, have you ever used one of those “instant cold packs” that looks like a plastic bag filled with liquid. In the water is another plastic bag or tube containing ammonium-nitrate fertilizer. When you hit the cold pack, it breaks the tube so that the water mixes with the fertilizer.

How do you get ammonium nitrate from cold packs?

If you’re using an already used instant cold pack then filter out the liquid and let it evaporate until it’s dry. The crystals will be ammonium nitrate. Take 80 grams of ammonium nitrate and dissolve in 70 milliliters of hot water. This will take some time so be patient.

Can you refreeze instant ice packs?

Instant cold packs are actually made up of two bags inside. One bag contains water, while the other holds a chemical like calcium ammonium nitrate. They’re also single-use packs, so once the chemical reaction is done, you have to dispose of the packs properly. You can’t refreeze or reuse them after that.

Where to buy ammonium nitrate instant cold packs?

-CVS: Locally, I went to CVS, and bough two instant cold packs for 4.79 a piece. These stated “contains ammonium nitrate” on the box. -Walmart: I then went to Walmart, to find that their instant cold packs contained as stated on the box “Calcium Ammonium Nitrate”.

How much does ammonium nitrate cost at CVS?

So at ~190 grams with two packs at $4.79/pack, the price for CVS ammonium nitrate works out to $22.89/LB. Next up is the Walgreens brand cold packs. Here are the contents from 2 of the 8 cold packs in the box. Here we see the scale reading approximately 225 grams.

Which is the purest brand of ammonium nitrate?

BobD1001. Plante, The CVS brand states only: “Contains Ammonium Nitrate and Water” although it clearly is not pure ammonium nitrate. The Walgreens brand has been used successfully in many nitrations and HNO3 synthesis. It is known to be a relatively pure source of NH4NO3.