=PERILIT.=--A German perchlorate blasting explosive made by the Koeln-Rottweil Pulverfabriken. It contains not more than 65 per cent. of potassium perchlorate, aromatic nitro-compounds, not more than 6 per cent. of dinitro-chlorhydrin, flour, etc., and nitrates (but not more than 10 per cent. of potassium nitrate). =PERKORONIT.= See Koronit. =PERMON POWDER.=--A coal-mine explosive which was on the Permitted List. It was made by the Carbonite Syndicate in Germany, and imported into Great Britain-- _Date of Permit_ 25-11-13 Nitroglycerine 12 Collodion cotton 0·4 Ammonium nitrate 55 Sodium nitrate 1 Glycerine 4 Potato flour 10·6 Sodium chloride 17 Limit charge 18 oz. Power (swing of ballistic pendulum) 2·57” The permit was repealed on 21-11-16. =PERMONITE.=--A potassium perchlorate explosive made by the Carbonite Syndicate at Schlebusch in Germany. A number of mixtures have been placed on the market, but they do not differ from one another very much. One which was on the old British Permitted List was-- Potassium perchlorate 32·2 Ammonium nitrate 41 Nitroglycerine 3·5 Collodion cotton 0·3 Trinitro-toluene 12 Starch 8 Wood meal 3 See also Gesteins Leonit. =PERRUMPIT.=--A German coal-mine explosive containing ammonium nitrate, sodium nitrate, vegetable meal, fatty oils, graphite and aluminium, cooling agents such as ammonium oxalate or sodium chloride, and not more than 15 per cent. of trinitro-toluene. =PERSALIT= is a German perchlorate explosive made by the Westfälisch-Anhaltische Sprengstoff A.-G. It contains not more than 77 per cent. of an alkali or alkali earth perchlorate, organic matter such as hydrocarbons, resins, meal or nitrated hydrocarbons (with the proviso that if the percentage of perchlorate exceed 70, there must not be more than 10 per cent. of trinitro-toluene). There must also be not less than 4 per cent. of ammonium nitrate, and there may be an addition of sodium nitrate or other salt that does not increase the sensitiveness. =WETTER-PERSALIT= is a similar explosive, but has been modified to make it more suitable for use in coal mines. It contains not more than 35 per cent. of potassium perchlorate, not more than 25 per cent. of ammonium nitrate, aromatic nitro-compounds of which not more than 20 per cent. must be trinitro-toluene, vegetable meal, not more than 6 per cent. of nitroglycerine, sodium nitrate, and neutral salts. It is similar to Neu-Leonit.