Nitroglycerine, when absorbed in a porous earth called 'kieselguhr', is called dynamite.
The best substitute for "kieselguhr" is ashes of bog-head coal.
Dynamit: nitroglycerine 75 per cent, kieselguhr 25 per cent.
kieselguhr, or simply guhr, absorbs twice its weight of nitroglycerine; cork charcoal absorbs nine times its weight.
The correct amount of kieselguhr to be added can only be ascertained by experience, and varies with different samples of yeast.
The nitro-glycerine is mixed by means of wooden spatulas with the fine white powder (kieselguhr) in a leaden vessel.
kieselguhr is a very powerful adsorbent, and only a little will do much good; it is, however, hardly sufficient alone.
Generally a small percentage of the kieselguhr is replaced by a mixture containing sodium and ammonium carbonates, talc and ochre.
It is a patented preparation and is made by the absorption of phosphoric acid by a powdery compound known as “kieselguhr.”
Lithofracteur, for instance, consists of 50% nitroglycerin and a mixture of prepared sawdust, kieselguhr and barium nitrate.