explodes at 275 °C
|lead styphnate||molecular mass
Lead styphnate, also called lead trinitroresorcinate, is an unstable primary explosive that resists shock but will detonate readily from heat or static. It is usually mixed with lead azide to improve its ability to detonate from flame or electric ignition. The preparation of lead styphnate is easy, but the chemicals used in its manufacture are of the kind only a lab would use. Lead acetate and nitric acid can be obtained but magnesium styphnate will be nearly impossible. Magnesium styphnate is derived from styphnic acid, or 2,4,6-trinitroresorcinol. Trinitro anything usually raises some danger flags, and dangerous chemicals are forbidden. Until I locate the method of preparation for styphnic acid, you will have to find some yourself.
|lead acetate||small beaker|
|magnesium styphnate||graduated cylinder|
|nitric acid||stirring rod|
Lead styphnate is prepared by adding a magnesium styphnate solution to lead acetate solution in a small beaker while stirring, and keeping the temperature at 70 °C. A precipitate will form, keep stirring for 15 minutes. After this time is up, add dilute nitric acid while stirring and cooling to 30 °C with a salt-ice bath, keep stirring until this temperature is reached. Collect the crystals on filter paper, wash with water, and allow them to dry in the open. The crystals should be reddish brown or orange in color.
Notice the lack of quantities of chemicals. The source I obtained this information from is reliable but sketchy. I suggest using 10 g of lead acetate in 30 mL of water, and the same for magnesium styphnate, to make the solutions. Add 10 mL of concentrated nitric acid to 70 mL of water for the dilute acid. Keep in mind the danger these crystals may pose, keep the dried crystals away from heat, friction, and shock. Store the crystals under water if they are not going to be used immediately. You will need a graduated cylinder for measuring liquids, a stirring rod for mixing, and a thermometer to monitor the temperature.
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