You can also heat the solution to 50 degrees celsius to increase the speed of the reaction, but don't go any higher. Once the solution is ready, remove the stir bar. This should be obvious, but don't remove it by hand. Pull it out using a magnet. Then, place some form of boiling chip in the flask. This can be broken pyrex glass or silicon dioxide sand. Make sure you don't use anything that will react with piranha solution (the mixture we created earlier of the hydrogen peroxide and sulfuric acid). Turn the heat of your hot plate to around 300 degrees celsius. At first, you will see rapid bubbling. This is a combination of carbon dioxide, which has become less soluble due to increased temperature, and oxygen created from the decomposition of excess hydrogen peroxide. Soon, you will start to see larger bubbles. This is the boiling water. Be extremely careful. Intense bubbling can splash boiling hot sulfuric acid everywhere, and think that is very obviously dangerous. After a while, you will be boiling a mixture of 98% sulfuric acid and 2% water, since the acid has formed an azeotrope. Use your own judgment to decide when this occurs. Once it has, turn down the heat and let the solution cool. This is your 98% sulfuric acid.
Step 3: Creating your nitration bath.
First, you will need to place your conc. sulfuric acid into an ice bath. Then, add in your potassium nitrate. The sulfuric acid reacts with the potassium nitrate to create potassium sulfate and nitric acid. The potassium sulfate can be ignored at this point since it won't react with any of your products or reactants.
Step 4: Preparing your glycerin source. Depending on what source you are using, you will need to prepare your glycerides for nitration. If you are using a fatty meat, this means dehydrating it. Any water in the meat will react exothermically with sulfuric acid, heating your mixture up. Hotter temperatures allow the sulfuric acid to pull off more water, repeating until your meat has been dissolved rather than the desired effect of nitration. If you are using vegetable oil, you will need to freeze it to a very low temperature. The best way to do this is to place it in a tub with a block of dry ice. Then, put your block of oil or dried, fatty meat into the nitration bath you prepared earlier.
Step 5: Nitration and meth extraction The acids begin to break down the triglycerides in the fat, creating glycerin which is then nitrated to meth, or more properly 1,2,3-tris(nitroxyl)propane.