DICTIONARY OF EXPLOSIVES DICTIONARY OF EXPLOSIVES BY ARTHUR MARSHALL A.C.G.I., F.I.C., F.C.S. CHEMICAL INSPECTOR INDIAN ORDNANCE DEPARTMENT PHILADELPHIA P. BLAKISTON'S SON & CO. 1012 WALNUT STREET 1920 Printed in Great Britain INTRODUCTION IT is a generation since a dictionary of explosives has been published, and, in the meantime, many new explosives have been introduced. It is hoped, therefore, that this small volume, giving concise information about these special materials, may prove useful to those who have to deal with them. In Cundill and Thomson's "Dictionary of Explosives," issued in 1895, there are many entries of the names of inventors and of mixtures which had been proposed but have never been used commercially, nor are likely to be. As modern explosives were then in their infancy, it was no doubt wise to insert all the available information whether it appeared to be important or not ; but now it seems to me better to restrict the scope of the dictionary so as to keep its size within moderate limits. Practically only explosives with special or proprietary names are therefore dealt with here. For information concerning chemical substances, such as the nit ro -toluenes and other nitro -compounds, reference should be made to the text-books on explosives and chemistry. A few words may, however, be said here about the nitro - celluloses. These are made by treating cellulose with a mix- ture of nitric and sulphuric acids, and then purifying the product by washing it thoroughly with hot water. The variety of cellulose most used for this purpose is cotton, and the product obtained from it is frequently called nitrocotton, three special varieties of which are collodion cotton, pyro- collodion and guncotton (q. r.). The only other form of cellulose which is nitrated on a commercial scale is " chemical cellulose " obtained by the treatment of wood or straw. M164593 vi INTRODUCTION Nitrated wood cellulose has long been used fo r the manu- facture of smokeless powders for shot-guns, and during the War the Germans made powders for rifled fire-arms from it. No trouble has been spared to make the dictionary com- plete and accurate, but there must inevitably be omissions and errors in it, especially as regards the explosives of foreign countries. The author will be grateful for any additional information that may be sent him. Explosives may be classified in various ways, according to the purpose of the classification, but the great majority of them fall naturally into two main divisions : propellants and high explosives. Propellants explode comparatively slowly, and are used to propel projectiles from fire-arms. High explosives are much more rapid in their action, and are used for bursting and shattering. Propellants are of two sorts, according as they are intended for use in shot-guns or rifled fire-arms. Those for shot-guns burn more rapidly than those for the latter, but both practically always contain a consider- able proportion of nitrocellulose, gelatinised by means of such solvents as acetone or ether-alcohol, according as it is of high or low nitration. Some contain also nitroglycerine, and are then called nitroglycerine powders, whereas those that do not contain this substance are termed nitrocellulose powders. Many powders also contain other ingredients, as may be seen from the compositions given in this dictionary. Of high explosives an important class is used for charging shells and bombs. As a rule, but not necessarily, these are not the same as the explosives used for mining operations and other general blasting purposes. Another important class is that of the coal-mine explosives, which are designed to give only a short and comparatively cool flame so as to diminish the danger of igniting fire-damp and coal-dust. Nearly half the explosives in this dictionary are coal-mine explosives. The reason for this large number is that no finality has yet been reached as to the best and safest explosives to use in coal mines. When more experience has been gained it is probable that the number of these explosives INTRODUCTION vii on the market will be reduced. In England the Permitted List has recently been cut down considerably. In Great Britain these coal-mine explosives have to be submitted to the Inspectors of Explosives, and are subjected to tests for safety and strength. If they pass they are placed on the list of " Permitted Explosives," and the compositions are published in the Explosives in Coal Mines Orders. In these Orders the upper and lower limits of the percentage of each constituent are given, but in this dictionary interme- diate percentages are given so that the sum for any explosive amounts to 100. In the Explosives in Coal Mines Orders the percentage of such a substance as wood, meal or starch, is given in the dried condition, but here it is given in the air-dry state on the assumption that it then contains about 10 per cent, of moisture. In France and Belgium also the compositions of the coal- mine explosives are published, but in Germany, as a rule, only a list of the constituents is given, and sometimes an upper or lower limit for one or more of the principal constituents. Moreover, it is not stated explicitly whether the explosives are intended for use in coal mines or for general blasting purposes. In the United States of America, explosives in- tended for use in coal mines are examined by the Bureau of Mines, which, however, has no power to prevent the use of others because regulations on this matter are made by the individual states. If they pass they are placed on the list of . " Permissible Explosives." The compositions are not published, but the class of composition is stated. Until the second half of the nineteenth century, gunpowder was practically the only explosive used on a considerable scale, and it was employed for all purposes. Consequently it does not fall into any of the classes mentioned, or rather it could be placed in several of them. Another class of explosives that has not yet been men- tioned is that of the primary igniters, of which fulminate of mercury may be taken as typical. The characteristic of these is that they can be exploded or ignited by a spark or moderate viii INTRODUCTION friction, and consequently they can be employed to fire other, less sensitive explosives. There are, however, practically no explosives of this class which possess special or proprietary names, and consequently they are not dealt with in this dictionary. Naini Tal, India. 1920. CLASSIFICATION COAL-MINE EXPLOSIVES American Permissible Explosives. Aetna Coal Mine Powder. Guardian. Bental Coal Powder. Hecla No. 2. Bituminite. Hygrade Coal Powder. Black Diamond. Kanite. Cameron Mine Powder. Lomite. Carbonite. Lowinite. Coalite. Meteor. Coal Special. Miners' Friend. Collier Powder. Min-ite. Cronite. Monobel. Detonite. Nitro Low-Flame. Du Pont Permissible. Red H. Eureka. Trojan Coal Powder. Fort Pitt Mine Powder. Tunnelite. Fuel-ite. Vigorite. Giant Coal Mine Powder. Xpdite. Austrian and Hungarian. Chloratit. Progressit. Dynammon. Titanit. Belgian Explosifs S.G.P. Alsilite. Grisoutite. Antigel de Surete. Ingelite. Baelenite. Minerite. Colinite antigrisouteuse. Minite. Cornil. Minolite. Densite. Pulverite. Dynamite antigrisouteuse. Sabulite antigrisouteuse. Favier Explosives. Securophore. Flammivore. Wallonite. Forcite antigrisouteuse. Yonckite. Fractorite. (There were also several ex- Grisoutine II. plosives made in Germany.) CLASSIFICATION British. *Abbcite. *Abelite. *Ajax Powder. *Albionite. *Amasite. * Ammonal. Ammonite. * Am vis. *Anchorite. *Aphosite. *Arkite. *Barking Powder. Bellite. Bobbinite. *Britonite. *Bull Dog. Cambrite. *Carbonite. *Celtite. *Cliffite. Cliffite (Super-). *Clydite. *Cornish Powder. *Coronite. *Curtisite. *Curtisite (Super-). Denaby Powder. *Dominite. *Dragonite. *Dreadnought Powder. Du Pont Permissible. *Duxite. Dynobel. *Electronite. Essex Powder. *Excellite. Excellite (Super-). Expedite. *Faversham Powder. Fortex (New). *Fracturite. *Gathurst Powder. *Good Luck. Haylite. *Herculite. *Kent Powder. Kentite. *Kolax. *Kolax (Super-). *Kynarkite. *Kynite. *Melling Powder. *Mersey Powder. *Minite. Monarkite. Monobel. *Monobel Powder. *Nationalite. Negro Powder. *Neonal. *Nitro-Densite. *Nobel Ammonia Powder. *Normanite. *Oaklite. *Odite. *Permon Powder. *Permonite. *Phoenix Powder. *Pitite. *Pitsea Powder. Rex Powder. *Rexite. *Rippite. Rippite (Super-). Roburite. *Russelite. Samsonite. *Saxonite. Seamex. *Sheppey Powder. *Stanford Powder. *Steelite (Colliery). *St. Helen's Powder. Stomonal. *Stow-ite. *Sunderite. *Superite. *Swale Powder. CLASSIFICATION XI *Swalite. *Syndite. Thames Powder. *Tutol. *Uplees Powder. *Victor Powder. British (continued) *Victorite. Viking Powder. *Virite. *Westfalite. *Withnell Powder. (Those marked * are not now on the Permitted List.) Favier explosives. Grisounite. Grisoutine. French. N. Naphthalite (Grisou-). German. Albit (Wetter-). Astralit (Wetter-). Bautzener Sicherheitspulver. Bavarit. Cahuecit (Ammon-). Carbonite. Chloratzit. Chromamonit. Cosilit. Dahmenit. Detonit. Donarit. Dorfit. Dynamit (Wettersicheres). Elsagit (Ammon-). Foerder Sicherheitssprengstoff. Foerdit. Fulmenit (Wetter-). Gehlingerit. Gesilit. Glueckauf. Kohlenkarbonit. Koronit (Kohlen-). Lenit (Neu-). Lignosit. Monachit. Naphthalit. Nobelit. Orkanit. Pastanit, Permonit. Perrumpit. Persalit (Wetter-). Plastomenit. Rhenanit (Wetter-). Roburite. Romperit (Wetter-). Salit. Schlesit. Securite. Siegenit. Teutonit. Tremonit. Tunnelit, Walsrode (Wetter-). Westfalit. Wetter-Dynamit. Aerolit. Aetna. Albit. BLASTING EXPLOSIVES Alkalsit. Amasite. Ammonal, Xll CLASSIFICATION BLASTING EXPLOSIVES (continued) Ammoniakkrut. Anagon. Anilit. Astralit. Atlas Powder. Barbarit. Blastine. Blasting Gelatine. Bomlit. C. Cahuecit. Carbite d'Ablon. Car bo -Dynamite. Carlsonite. Cheddite. Chloratzite. Cugnite. Dahmenite. Denaby Powder. Densite. Dominit. Donarit. Dynamite. Electronite. Ergite. Erin Gelignite. Extra Dynamite. Forcite. Fumenit. Gehlingerit. Gelatinee a PAmmoniaque. Gelatine Dynamite. Gelignite. Giant Powder. Halalite. Hammonit. Helagon. Helit. Hercules Powder. Imperialite. Judson Powder. Kausolit. Kinetit. Kiwit. Koronit. L.C. Pulver. Leonit. Ligdyn. Lignosit. Lithofracteur. Loewenpulver. Luxit. M.B. Powder. Marsit. Meganit. Melanite. Mercurit. Miedziankit. Minolite. Mitchellite. Monachit. Naphthalit. Nitrolit. O. Oakley Quarry Powder. Oxyliquit. Pastanil. Per agon. Perchlorit. Perdit. Perilit. Persalit. Petroklastit. Petrolit. Pfalzit. Pierrite. Plastammon. Plessit. Pniowit. Polarite. Praeposit. Promethee. Prosperit. Rack-a-Rock. Raschit. Red Cross. Rendrock. Rexol. CLASSIFICATION xiii BLASTING EXPLOSIVES (continued) Rhenanit. Stonax. Rhexit. Telsit. Rivalit. Territ. Rockite. Teutonit. Romperit. Thornit. Roslin Giant Blasting Powder. Titanite. Sabulite. Tonite. Saxonite. Tremonit. Sebomite. Velox Gelatine. Sengite. Vender. Siegenit. Vigorite. Silesia. Vulcan Powder. Sprengel Explosives. Wilhelmit. Sprengsalpeter. Yonckite. Steelite. HIGH EXPLOSIVES (For Shells and Bombs.) Alumatol. Himalayite. Amatol. Hudson's Explosive. Amatoxol. Lyddite. Anilite. Macarite. Astralit. Melinite. Baratol. Nitrolit. Cilferite. Panclastite. Cresylite. Perdit. Dunnite. Plastrotyl. Echo. Schneiderite. Ecrasite. Shellite. Fuellpulver. Stabilite. Fumyl. T.N.T. Granatfuellung. Toxol. H.E. Triplastit. Hellhofite. MISCELLANEOUS EXPLOSIVES Black Powder. Ophorite. C.P. Pulverin. Centralite. Pyrocollodion. Cheesa Sticks. Pyroxyline. Collodion Cotton. Stabilite. Flobert Ammunition, Tetryl. Glonoine. White Gunpowder. Halakite. xiv CLASSIFICATION PROPELLANTS (For Shot-guns.) Amberite. Neonite. Cannonite. New Explosives Co.'s Smokeless Clermonite. Powder. CooppaPs Powder. Normal Powder. Crystal. Plastomenit. Du Pont Smokeless Powder. Primrose Smokeless. E.C. Powder. Red Star. Economic. Rifleite (Shot Gun). Eley Smokeless Powder. Rottweil Smokeless Powder. Empire. Ruby Powder. Felixite. S. Fulmen Powder. S.S. Henrite. Schultze Powder. Ideal Powder. Smokeless Diamond. J. Stowmarket Smokeless. K.S. T. M. Troisdorf Smokeless Powder. Mischpulver. Walsrode Shot Gun Powder. Mullerite. (For Rifled Fire-arms.) Amide Powder. N.C.T. Ammonpulver. Neonite. Apyrite. Nitrokol. Axite. Normal Powder. B. P.C./88. Ballistite. R.F.G. Brugere's Powder. R.L.G. Cocao Powder. Rifleite. Cordite. Rottweil Smokeless Powder. C.S.P. S.K. Filite. S.R. Hebler Powder. S.V. Indurite. Solenite. Lafflin and Rand. Troisdorf Smokeless Powder. Moddite. Wetteren. DICTIONARY OF EXPLOSIVES ABBGITE. A coal-mine explosive made by Kynoch, Ltd. The original composition which passed the Woolwich Test was Ammonium nitrate Nitroglycerine Wood meal 80 10 10 To enable it to pass the Rotherham Test sodium chloride was added, and a little dinitro-toluene was also introduced ABBCITE No. 2. Date of Permit 3-7-15 Ammonium nitrate Nitroglycerine . Wood meal Dinitro-toluene . Sodium chloride Limit charge .... Power (swing of ballistic pendulum) The permit has now been repealed. 58 8'5 9 1-5 23 18 oz. 2-54" ABELITE. A coal-mine explosive made by the Lan- cashire Explosives Co. Two formulas were approved No. 1. No. 4. Date of Permit . . 7-4-14 Ammonium nitrate 68*5 Dinitro-benzene Trinitro-toluene Sodium chloride Starch 7 7 17'5 67 14'5 7 11-5 Limit charge . . . 14 oz. 18 oz. Power (swing of ballistic pendulum) . . . 2*85" 2 '79" The permits have now been repealed. 1 2 DICTIONARY OF EXPLOSIVES Abelite (without distinguishing number) is simply mixture of ammonium nitrate and trinitro-toluene Ammonium nitrate Trinitro-toluene 83 17 It is therefore a variety of Bellite in which the dinitro-benzene has been replaced by trinitro-toluene. It is used for filling grenades and general blasting purposes, but is not permitted in dangerous coal mines. AEROLIT is a Danish ammonium nitrate explosive, e.g. Ammonium nitrate Potassium nitrate Sulphur Fat Sago meal Manganese dioxide Resin 78-125 7'5 8'75 2-5 1-25 1-25 0-625 AETNA GOAL POWDER is an American coal-mine powder on the Permissible List. Brands A, B and C are nitroglycerine explosives. A A and No. 2 are ammonium nitrate explosives. AETNA POWDER. A variety of American dynamite containing 15 to 65 per cent, of nitroglycerine mixed with wood pulp and sodium nitrate. Roasted flour has sometimes been substituted for wood pulp. AJAX POWDER. A coal-mine explosive made by Nobel's Explosives Co. Date of Permit Nitroglycerine Nitrocotton . Di- and trinitro -toluenes Potassium perchlorate Wood meal . Ammonium oxalate Limit charge . Power (swing of ballistic pendulum) 1-9-13 22-3 0-7 3-5 37 11-5 25 12 oz. 2-69" In 1914, 329,000 Ibs. were used in coal mines, but the permit has now been repealed. DICTIONARY OF EXPLOSIVES 3 ALBIONITE. A mixture of gelignite and ammonium oxalate. It was formerly on the Permitted List. ALBIT. A German chlorate explosive introduced in 1915 in consequence of the scarcity of nitrates due to the War. It is defined as consisting of not more than 80 per cent, sodium or potassium chlorate, not more than 4 per cent, nitroglycerine, and mono- or dinitro-hydrocarbons. It may also contain inorganic salts and carbon carriers such as vegetable meal, oils, soaps or carbohydrates. A variety made for use in coal mines is called Wetter-Albit or Kohlen-Albit. ALDORFIT. See DORFIT. ALKAL8IT. A German chlorate or perchlorate explosive made by the Dynamit A.G. of Hamburg. It contains not more than 80 per cent, sodium or potassium chlorate, or not more than 80 per cent, sodium, potassium or ammonium perchlorate, and 19 per cent, of aromatic nitro-hydrocarbons and nitrocotton, also coal, hydrocarbons or carbohydrates, and nitrates. The chlorate mixtures must not contain ammonium salts. Alkalsit I contains not more than 27 per cent, of potassium perchlorate, ammonium nitrate, not more than 24 per cent, of sodium nitrate, not more than 8 per cent, of trinitro-toluene, also wood meal, flour and nitro-naphthalene. Alkalsit A contains not more than 55 per cent, of potassium perchlorate, ammonium nitrate, not more than 31 per cent, trinitro-toluene, and not more than 5 per cent, of a neutral liquid mixture of nitrated toluenes. Alkalsit B is similar except that it contains also ammonium nitrate. ALSILITE S.G.P. A Belgian coal-mine explosive on the list of Explosifs S.G.P. It is of the Ammonal type Ammonium nitrate . . . .62 Trinitro-toluene . . . . .11 Ferro-silicon-aluminium .... 5 Sodium chloride 22 Charge limite 900 g. 4 DICTIONARY OF EXPLOSIVES ALUMATOL. A mixture of ammonium nitrate, trini- tro -toluene and a little aluminium powder, used for charging trench-mortar bombs, etc. AMASITE. A coal-mine explosive formerly on the Permitted List Ammonium perchlorate . . . .84 Sodium nitrate . . . . .81 Myrobolans . . . . . .34*7 Agar agar 0*3 It was made by the Societ Anonyrne de Vilvorde in Belgium, and was originally called Ugolite. Rock Amasite and S.T. Amasite are non-permitted ex- plosives of composition somewhat similar to the above. AMATOL. A mixture of ammonium nitrate and trini- tro-toluene. The composition is shown by the figures placed after the name ; thus Amatol 40/60 contains 40 per cent, ammonium nitrate and 60 per cent, trinitro-toluene, and Amatol 80/20 consists of 80 parts ammonium nitrate and 20 parts trinitro-toluene. These explosives are used very exten- sively for filling shell and other projectiles. The mixtures rich in trinitro-toluene can be cast after being heated to temperature above the melting-point of this constituent, but those rich in ammonium nitrate are stemmed into the projectile hot or pressed. Similar mixtures are used by the Germans and other powers under various names. In Germany it is called Fullpulver (q. v.). AM AT OX OL. A mixture of ammonium nitrate and Toxol, which consists of trinitro-toluene and trinitro-xylene. *AMBERITE. A smokeless shot-gun powder made by Curtis's and Harvey at Tonbridge. Amberite No. 1 con- tained nitroglycerine as well as nitrocotton and various other substances. According to " Arms and Explosives," 1917, p. 78, a sample of Amberite No. 2 had the composition DICTIONARY OF EXPLOSIVES 5 Insoluble nitrocotton . 18*6 Soluble . . 46-0 Nitrates of potassium and barium 28*0 Vaseline .... 6*0 Volatile matter ... 1'4 This is still on the market. It is a fibrous 42-grain bulk powder. *AMIDE POWDER or Chilworth Special Powder was an early attempt at a smokeless powder. Under the name of Amidpulver it was used by the German artillery for some years in the 'eighties of the last century. Its composition was Ammonium nitrate .... 85-88 Potassium nitrate ..... 40-46 Charcoal 14-22 See also Ammonpulver and Hebler Powder. AMMONAL is a blasting explosive containing ammonium nitrate, aluminium powder, charcoal, and generally trinitro- toluene. It was patented in 1900 by G. Roth of Vienna, and the following are some of the compositions made by his firm at Felixdorf in Austria a 6 c d Ammonium nitrate . 80-75 90 88 80 Aluminium . . .15 4 8 18 Charcoal . . . 4'25 642 More violent mixtures made by the same firm are I II Ammonium nitrate . . . . 46 32 Trinitro-toluene 80 50 Aluminium 22 16 Charcoal 22 and modifications of this have been used largely in the British service. It is not suitable for use in underground workings as it forms on explosion the poisonous gas carbon monoxide, unless theTproportion of ammonium nitrate be large. It 6 DICTIONARY OF EXPLOSIVES has been used for charging grenades, and by the Austrians for trench howitzer bombs. When the explosive is detonated, the aluminium is con- verted into the oxide, evolving no gas, but a considerable amount of heat, which increases the power of the explosive. The aluminium powder also renders the explosive easier to detonate. Three explosives of this type passed the Woolwich Test, and were on the old Permitted List for coal mines, namely, Ammonal B, Ripping Ammonal and Saint Helen's Powder (q.v.). Ripping Ammonal B. Ammonal. Ammonium nitrate . . 94 f 5 86 Aluminium ... 8 8 Charcoal . . * . 2'5 2'5 Potassium bichromate . 3*5 No explosives containing aluminium are on the present Per- mitted List. AMMONGAHUEGIT \ CAHUECIT. See AMMONCARBONIT GARBONIT. AMMONIAKKRUT was the first ammonium nitrate explosive. It was invented by J. Ohlsson and J. H. Norrbin, two Swedes, and was protected by English Patent 2766 of 1869. It consisted of ammonium nitrate together with 5 or 10 per cent, of charcoal, coal dust, etc., to which mixture was added 10 to 30 per cent, of nitroglycerine to make it less difficult to detonate. AMMONITE is a coal-mine explosive of the Favier type, made by the Miners' Safety Explosives Co. The original composition, which passed the Woolwich Test was Ammonium nitrate . . . .88 Dinitro-naphthalene . . . . 12 DICTIONARY OF EXPLOSIVES 7 To pass the more severe Rotherham Test a number of compositions have been made and approved, but some of them have been repealed. Those now on the Permitted List are Ammonite Ammonite. Ammonite No. 1. No. 5. Date of Permit . . 29-8-14 5-11-17 2-8-18 Ammonium nitrate 74'5 78'5 74-5 Dinitro -naphthalene Trinitro-naphthalene Trinitro-toluene . Sodium chloride . 20'5 21 20-5 Limit charge 24 18 26 oz. Power (swing of ballistic pendulum) . . 2'42 2'44 2-41" Ammonite No. 1 is used on a considerable scale in coal mines. A non-permitted explosive called Ripping Ammonite is also made. *AMMONPULVER is a propellant which was used by the Austrians from 1890 to 1896 in guns of various calibres Ammonium nitrate .... 80-90 Charcoal 10-20 It was superseded by a powder of the ballistite type, but has been reintroduced recently by the Germans to replace a part of the charge of nitrocellulose powder in their field gun. The advantages claimed for it are small erosion of the gun, absence of muzzle flame, chemical stability, and cheapness. On the other hand, it gives high pressures, and if used by itself requires a gun with a specially large chamber ; but the most serious objection to it is that on keeping, physical changes take place in the pellets, leading to the production of very high pressures. It is said that moisture promotes these changes. See also Amide Powder. AMVIS. A coal-mine explosive formerly on the Per- mitted List 8 DICTIONARY OF EXPLOSIVES Ammonium nitrate . . . .90 Wood meal ...... 5 Dinitro-benzene Chlorinated naphthalene Neu ANAGON. A German blasting explosive containing not more than 70 per cent, of ammonium nitrate, zinc- aluminium alloy and charcoal. ANCHORITE. A coal-mine explosive of the Favier type, formerly on the Permitted List. It was made by Kynoch-Arklow, Ltd. Date of Permit 13-6-14 Ammonium nitrate 84 '8 Sodium nitrate Ammonium chloride Trinitro-toluene Limit charge .... Power (swing of ballistic pendulum) 83-3 20'2 12'2 14 oz. 2-78" ANILIT. A German explosive containing not less than 70 per cent, of ammonium nitrate, not more than 5 per cent. of sugar, and copper sulphate-aniline or copper oxalate- aniline. ANILITE. A French liquid explosive of the Sprengel class used for aerial bombs. ANTIGEL DE SftRET. A Belgian coal-mine explosive Nitroglycerine . . . . .25 Sodium nitrate . . . . .20 Dinitro-toluene . . . . .15 Ammonium sulphate .... 5 Cellulose \ QK Wood meal j The Charge limite is 900 grammes, which is equivalent to 524 grammes of dynamite No. 1. The composition is the same as that of Ing