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290 SMOKELESS POWDER pounds of water is added and about 90 grams of rosaniline or some other, generally bright-colored, water-soluble dyestuff, and the charge is incorporated by milling for about 45 minutes in a wheel mill which is built like a black-powder mill but is smaller and has light wooden wheels. The charge is then run through a mechanical rubber, which consists of wooden blocks rubbing with a reciprocating motion on a perforated zinc plate; the larger lumps are broken up and the material is put into proper condition for granulating. For this purpose about 50 pounds is placed in a copper pan or "sweetie barrel" which is revolving in a vat of hot water and is heated by that means. The pan rotates fairly rapidly, say at about 15 r.p.m., and carries the powder up along its sloping side to a point where it is scraped off by suitably arranged wooden scrapers and falls back again. It thus receives a rolling motion which has the effect of granulating the powder into spherical grains. The operation requires about 40 minutes, and its completion is indicated by the failure of the powder to carry up on the pan because of the loss of moisture. After it has been granulated, the powder is given a preliminary screening with a 12-mesh sieve. The material which is retained on the sieve is returned to the wheel mill. That which passes through is hardened. It is put into a horizontal revolving cylinder and a mixed solvent, consisting of about 1 part of acetone and 6 parts of alcohol, is added in the proportion of 1 gallon of solvent to 15 pounds of powder. Acetone dissolves nitrocellulose, alcohol does not; the mixed solvent swells and softens the fibers and makes them stick together. The cylinder is rotated, while hot air is blown through, until the solvent has been volatilized. During this process the temperature is allowed to rise as high as 50° or 55°. The product, which consists of grains now more or less completely agglutinated, is given a final screening. In a typical case, the portion passed by a 12-mesh sieve and retained by a 50-mesh sieve is taken; it is given a final drying and is ready for use. In a typical example of the still process for the manufacture of bulk sporting powder, 500 pounds of pulped nitrocellulose (12.60% N) is placed in a vertical cast-iron still along with 700 gallons of water containing 2% of potassium nitrate and 6% of barium nitrate dissolved in it. The material is mixed thoroughly
BULK POWDER 291 FIGURE 71. Sweetie Barrel. (Courtesy Western Cartridge Company.) The moist and mixed ingredients of bulk powder, tumbled in this apparatus, take on the form of grains. Similar equipment is used for sugar-coating pills and for applying a deterrent coating or a graphite glaze to grains of colloided smokeless powder.
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CHAPTER I PROPERTIES OF EXPLOSIVES
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HIGH EXPLOSIVES 3 they are heated o
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HIGH EXPLOSIVES 5 black match may b
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A COMPLETE ROUND OF AMMUNITION 7 f
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A COMPLETE ROUND OF AMMUNITION 9 11
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DETONATING FUSE 11 ting upon, say,
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DETONATING FUSE 13 branch line squa
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FIGURE 8. Pierre-Eugene Marcellin B
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VELOCITY OF DETONATION 17 placed up
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FIGURE 10 Charles Edward Munroe (18
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Sensitivity Tests SENSITIVITY TESTS
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TESTS OF EXPLOSIVE POWER AND BRISAN
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BOERHAAVE ON BLACK POWDER 29 Bertho
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BOERHAAVE ON BLACK POWDER 31 powder
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GREEK FIRE 33 And of the last two o
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ROGER BACON 35 only half filled wit
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ROGER BACON 37 large as the human t
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DEVELOPMENT OF BLACK POWDER 39 Deve
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DEVELOPMENT OF BLACK POWDER 41 the
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USES OF BLACK POWDER 43 Potassium n
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MANUFACTURE 45 rings and in other p
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ANALYSIS 47 caded, and is never app
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AMMONPULVER 49 ing is made from sod
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OTHER PROPELLENT EXPLOSIVES 51 toge
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PYROTECHNIC MIXTURES 53 colors. His
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PYROTECHNIC MIXTURES 55 composition
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PYROTECHNIC MIXTURES 57 and moisten
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PYROTECHNIC MIXTURES 59 chloride is
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PYROTECHNIC MIXTURES 61 positions w
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COLORED LIGHTS 63 flares during the
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Potassium chlorate Strontium nitrat
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Barium nitrate Potassium nitrate Po
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LANCES 69 minute with an illuminati
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PICRATE COMPOSITIONS 71 To be burne
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ROCKETS 73 is used in whistling fir
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ROCKETS 75 one ounce and a half. It
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ROCKETS 77 which handle a gross of
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Roman Candles ROMAN CANDLES 79 Roma
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STARS 81 the space between the star
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STARS 83 4-ply manila paper tubing,
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STARS 85 YVeingart 31 reports compo
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STARS 87 powder mixture, given a ye
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GERBS 89 Gerbs Gerbs produce jets o
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WHEELS 91 denly with a terrifying r
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PINWHEELS 93 Pinwheels To make pinw
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PINWHLELS 95 need of a vast theater
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MINES 97 match or fire wick), for t
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COMETS AND METEORS 99 an electric o
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BOMBSHELLS 101 the short pieces sep
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BOMBSHELLS 103 is folded, rubbed, a
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TOY CAPS 105 "It is to be noted," h
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JAPANESE TORPEDOES 107 minate but w
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RAILWAY TORPEDOES 109 hardens it),
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CHINESE FIRECRACKERS 111 English Cr
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CHINESE FIRECRACKERS 113 carrying o
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CHINESE FIRECRACKERS 115 struck a s
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SPARKLERS 117 is shaped by a motion
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PHARAOH'S SERPENTS 119 Wire Dips an
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BLACK NON-MERCURY SNAKES 121 pellet
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Potassium chlorate Lactose Paranitr
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CHAPTER IV AROMATIC NITRO COMPOUNDS
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EFFECT OF GROUPS ON FURTHER SUBSTIT
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UTILIZATION OF COAL TAR 129 the nuc
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UTILIZATION OF COAL TAR 131 In each
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MONO- AND DI-NITROBENZENE 133 Trini
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TRINITROBENZENE 135 powder, 250 lit
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TRINITROBENZENE 137 + CHsONo H. ,OC
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TRINITROBENZENE 139 According to Da
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TRINITROTOLUENE 141 not yet been de
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TRINITROTOLUENE 143 ?mall amount, p
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TRINITROTOLUENE 145 with a correspo
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TRINITROTOLUENE 14? The soluble sul
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TRINITROTOLUENE 149 cent free SOa)
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TRINITROTOLUENE 151 CH, NO, " ~" a
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TRIXITROXYLENE 153 Dautriche found
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NITRO DERIVATIVES OF NAPHTHALENE I5
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NITRO DERIVATIVES OF NAPHTHALENE 15
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PICRIC ACID 159 of biphenyl. The mo
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PICRIC ACID 161 dinitrophenol as re
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PICRIC ACID 163 a yellow nitropheno
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PICRIC ACID 165 below have been pub
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AMMONIUM PICRATE 167 80° and 90°
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TR1NITR0ANIS0L AND TRINITROPHENETOL
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TRINITROANISOL AND TRINITROPHENETOL
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TETRANITROANILINE 173 Both trinitro
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TETRYL 175 TNA shows about the same
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TETRYL 177 All the above-indicated
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TETRYL 179 m-nitrotetryl is effecti
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TETRYL 181 The solubility of tetryl
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BUTYL TETRYL 183 MINIMUM CHARGE FOB
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HEXANITRODIPHENYLAMINE 185 Carter 1
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HEXANITRODIPHENYL SULFONE 187 pound
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HEXANITROAZOBENZENE 189 nitrocarban
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CHAPTER V NITRIC ESTERS Nitric este
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METHYL NITRATE 193 sion of 24.5 mm.
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NITROGLYCERIN 195 blasting cap will
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NITROGLYCERIN 197 are evolved, but
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NITROGLYCERIN 199 than half its own
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NITROGLYCERIN 201 Thus, if 100 gram
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NITROGLYCERIN 203 quickly into a dr
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NITROGLYCERIN 205 "boils" strongly.
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NITROGLYCERIN 207 because the boili
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NITROGLYCERIN 209 the temperature r
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NITROGIA'CERIN 211 velocities of de
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NITROGLYCERIN 213 material in safet
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DINITROGLYCERIN 215 cerin. It mixes
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DINITROGLYCERIN 217 Both of the din
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NITROGLYCIDE 219 oxide ring, and mo
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DINITROCHLOROHYDRIN 221 can be froz
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NITROGLYCOL 223 amount is necessary
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NITROGLYCOL 225 portions with water
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TRINITROPHENOXYETHYL NITRATE 227 me
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PENTRYL 229 Another portion of the
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PENTRYL 231 tetryl by one of 27.5 c
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TRIMETHYLENE GLYCOL DINITRATE 233 i
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Butylene Glycol Dinitrate NITROERYT
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NITROMANNITE 23? While its stabilit
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Page 241 and 242: NITROLACTOSE 241 Nitroglucose (d-Gl
Page 243 and 244: OTHER NITROSUGARS 243 readily solub
Page 245 and 246: EARLY HISTORY OF NITRATED CARBOHYDR
Page 257 and 258: NITROCELLULOSE 257 The two substanc
Page 259 and 260: NITROCELLULOSE 259 dre B. Either CP
Page 261 and 262: NITROCELLULOSE 261 nent materials w
Page 263 and 264: NltfROCELLULOSE 263 The pulped fibe
Page 265 and 266: NITROCELLULOSE 265 cellulose with g
Page 267 and 268: DURATION AT 1st period 2nd period 3
Page 269 and 270: DETERMINATION OF NITROGEN 269 upon
Page 271 and 272: DETERMINATION OF NITROGEN 271 actio
Page 273 and 274: NITROSTARCH 273 At the beginning of
Page 275 and 276: NJTROSTARCH 275 the contents of the
Page 277 and 278: UTILIZATION OF FORMALDEHYDE 277 cat
Page 279 and 280: PENTAERYTHRITE TETRANITRATE 279 ery
Page 281 and 282: DIPENTAERYTHRITE HEXANITRATE 281 ni
Page 283 and 284: TRIMETHYLOLNITROMETHANE TRINITRATE
Page 285 and 286: NITROPENTANONE AND RELATED SUBSTANC
Page 287 and 288: CHAPTER VI SMOKELESS POWDER An acco
Page 289: BULK POWDER 289 was called E C. pow
Page 293 and 294: EARLY HISTORY OF COLLOIDED POWDERS
Page 295 and 296: EARLY HISTORY OF COLLOIDED POWDERS
Page 297 and 298: COLLOIDED NITROCELLULOSE POWDERS 29
Page 299 and 300: MANUFACTURE OF SINGLE-BASE POWDER 2
Page 307 and 308: STABILIZERS 307 Stabilizers The spo
Page 309 and 310: STABILIZERS 309 stable as those con
Page 311 and 312: TRANSFORMATIONS DURING AGING OF POW
Page 313 and 314: ABSORPTION OF MOISTURE 313 ence is
Page 315 and 316: ABSORPTION OF MOISTURE 315 ences. E
Page 317 and 318: CONTROL OF RATE OF BURNING 317 GAIN
Page 319 and 320: CONTROL OF RATE OF BURNING 319 Prog
Page 321 and 322: GELATINIZING AGENTS 321 but very li
Page 323 and 324: FLASHLESS CHARGES AND FLASHLESS POW
Page 329 and 330: BALL-GRAIN POWDER 329 in the presen
Page 331 and 332: CHAPTER VII DYNAMITE AND OTHER HIGH
Page 333 and 334: INVENTION OF DYNAMITE 333 The next
Page 335 and 336: INVENTION OF AMMONIUM NITRATE EXPLO
Page 337 and 338: GUHR DYNAMITE 337 which is practica
Page 339 and 340: STRAIGHT DYNAMITE 339 but "40% ammo
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STRAIGHT DYNAMITE 341 Munroe and Ha
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BLASTING GELATIN 343 of nitroglycer
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GELATIN DYNAMITE 345 night, and the
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PERMISSIBLE EXPLOSIVES 347 that one
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PERMISSIBLE EXPLOSIVES 349 many cla
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PERMISSIBLE EXPLOSIVES 351 The Fren
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Nitroglycenn Potassium nitrate Sodi
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LIQUID OXYGEN EXPLOSIVES 355 The Pr
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CHLORATE AND PERCHLORATE EXPLOSIVES
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AMMONIUM NITRATE MILITARY EXPLOSIVE
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CHAPTER VIII NITROAMINES AND RELATE
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METHYLNITRAMINE 371 Methylnitramine
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NITROUREA 373 filled with a strong
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GUANIDINE NITRATE 375 Guanidine or
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GUANIDINE NITRATE 377 The cyanamide
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GUANIDINE NITRATE 379 only one mole
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NITROGUANIDINE 381 been found, as d
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NITROGUANIDINE 333 mixture, is trea
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NITROGUANIDINE 385 A solution of ni
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NITROGUANIDINE 387 Nitroguanidine,
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NITROGUANIDINE 389 material "firmly
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NITROSOGUANIDINE 391 stant volume o
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ETHYLENEDINITRAMINE 393 rial which
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DINITRODIMETHYLSULFAMIDE 395 gives
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CVCLOTRIMETHVLENETRINITRAMINE 397 r
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CYCLOTRIMETHYLENETRINITRAMINE 399 r
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DISCOVERY OF FULMINATING COMPOUNDS
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DISCOVERY OF FULMINATING COMPOUNDS
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MERCURY FULMINATE 405 cold anvil an
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MERCURY FULMINATE 407 water, filter
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MERCURY FULMINATE 409 HgSA + NaCN +
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MERCURY FULMINATE 411 mented with s
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DETONATORS 413 Amusements with Fulm
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DETONATORS 415 characters of the ch
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DETONATORS 417 potassium chlorate.
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DETONATORS 419 in the amount of san
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TESTING OF DETONATORS 421 pressed.
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TESTING OF DETONATORS 423 later rec
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LEAD AZIDE 425 used; the azide is e
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LEAD AZIDE 427 the interaction of h
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LEAD AZIDE 429 of which there exten
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SILVER AZIDE 431 temperature of spo
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CYANURIC TRIAZIDE 433 The best resu
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EXPLOSIVE Cyanuric triazide Lead az
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TRINITROTRIAZIDOBENZENE 437 purifie
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NITROGEN SULFIDE 439 acid, sulfur d
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DIAZONIUM SALTS 441 A 0.05-gram sam
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DIAZODINITROPHENOL 443 Preparation
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DIAZODINITROPHENOL 445 alcohol 2.43
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TETRACENE 447 its structure. It is
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TETRACENE 449 Preparation 0} Tetrac
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HEXAMETHYLENETRIPEROXIDEDIAMINE 451
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FRICTION PRIMERS 453 which had been
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PERCUSSION PRIMERS 455 or with wate
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PERCUSSION PRIMERS 457 is safest to
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Aaronson, 158, 226 Abel, 42, 194, 2
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Ge, 241 Geschwind, 151 Gibson, 127,
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Pliny, 35 Prentice and Co., 253 Pre
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INDEX OF SUBJECTS Alkylnitroguanidi
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Ballistite, attenuated, 259 erosive
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Carbon tetrabromide, 375 Carbon tet
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Dehydrating press, 299, 300, 302 De
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Ether, solvent, 135, 152, 169, 181,
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Gold, fulminating, 3, 400, 401 Gold
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K KI starch test, 268, 285 Kekule o
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Methylglucoside tetranitrate, 243 M
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Nitromaltose, 240, 241 Nitromannite
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Picric acid, Trauzl test, 211, 231
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Salt, common (sodium chloride), 60,
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Strength of dynamite, 338, 339, 341
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Trinitrobenzene, sensitivity to imp
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