(Continued from Part 1. This concludes the article.)
Apple Cider Vinegar
This is one of the examples of where biology and chemistry cross over. Apple cider vinegar is mostly Acetic acid and is easy to make. The process starts with fermenting apples (biology) and ends with acetic acid (chemistry). Like baking soda there are many uses for vinegar, both in cooking and other applications. I now stock several gallons of white vinegar for cleaning rust off of items, especially if they are going to be used around food. For the price, this is the best method for getting rid of rust. If you want to know how powerful of an acid white vinegar is, just put a little steel wool into a jar and cover it with vinegar and watch it disappear over the next few days. Considering how versatile and easy to make vinegar is we should all know how to make it since at some point our stored vinegar will run out. Vinegar is also one of the few easy to come by acids.
Water Glass
Also known as Sodium Silicate. Water glass is basically a mixture of sand (quartz) and caustic soda and water. Probably the best survival use of water glass is in the long-term preservation of eggs without refrigeration by covering the eggs in a solution of one-part water glass to seven parts of warm water that has first been boiled to ensure there is no bacteria in the water. The water glass will stop air from penetrating the egg shell thus not allowing it to rot. Water glass is also a useful solution to help reduce water penetration into and through cement and stucco. Water glass can simply be made by dissolving 8 grams of sodium hydroxide by heating it in about 10 milliliters of water and then adding about 6 grams of crushed silica. Using distilled water helps keep the mixture from reacting to any impurities that could be found in well water.
Sulfuric Acid
Sulfuric acid is readily available as drain cleaner . (Note that not all drain cleaners are sulfuric acid based). Sulfuric acid will come in handy post-TEOTWAWKI by helping to maintain and rejuvenate lead-acid batteries. Another survival use of sulfuric acid is to rejuvenating metal files. Putting your dual files into sulfuric acid will in effect re-sharpen them by eating away softer metal filings. One simple way to produce a solution of sulfuric acid is by burning sulfur mixed with saltpeter (dry powder) and allowing the burning fumes to mix with water vapor/steam. This is where lab glass and stands will come in handy so that the fumes and water vapor can be caught and funneled to mix together. When the steam/vapor mixture is cooled you will have a sulfuric acid. Use Ph paper to test the strength of the mixture.Continue reading“Practical Survival Chemistry – Part 2, by 3AD Scout”