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632 SUBJECT INDEX

Pentadeuteronitrobenzene, 38
Pentaerythritol tetranitrate, 122, 224, 295
n-Pentane, nitration of, 86
Pentanitrodiphenyl ether, 549, 550
Pentanitrohydrazobenzene, 575
Pentanitrophenol, 532
Perchlorates, 1, 2
Perchloric acid, 42
derivatives of, 1
Pernitrous acid, 120, 121
Peroxides, 1, 2, 88
Phenanthrenoquinone, 54
Phenanthridine, 196
Phenazine oxide, 195
Phenazines, 195
Phenetole, nitration of, 85
Phenol, nitration of, 48, 84, 85, 93, 504,
514, 516
side reactions of, 15-77
Phenolsulphonic acid, nitration of, 506, 509, 512
Phenothiazine tetranitrosulphoxide (“Press-
ling”), 572
Phenyldinitroethylene, 100
Phenyldinitromethane, 96, 102
Phenylmercuric nitrate, 113
Phenylnitroethane, 83
Phenylnitromethane, 93, 96, 122, 215, 598
aci-form of, 182, 185
Phloroglucinol, 535
Photonitration, 105
Phthalic anhydride, 201
Picramic acid, 571, 572
Picramide - see 2,4,6-Trinitroaniline
Picrate,
ammonium, 527
guanidine, 530
Picric acid, 3, 4, 92, 151, 203, 214, 221,
222-225, 258, 295, 400, 532
chemical properties of, 491
density of, 490
explosive properties of, 494
hygroscopicity of, 489
manufacture of, 499
physical properties of, +86
sensitiveness to impact, 319
separation and washing, 517
solubility of, 487
thermochemical properties of, 490
toxicity of, 495
Picric acid salts, 525
danger produced by, 530

Picryl azide, 602

Picryl chloride, 178, 400, 459

chemical properties of, 461

physical properties of, 460

Picrylhydroxylamine, 257

Picryl iodide, 178

Picrylpyridinium chloride, 124, 464

Picrylpyridinium nitrate, 124

Picryl sulphide, 553

Pinene, nitro derivatives of, 59

Plosophoric groups, 2

Polyalkylbenzene, nitration of, 74

Polyhydric phenols, 535

Polynitro compounds, 207

Polynitrododecanes, 87

Polynitroethylene, 596

Polynitro paraffins, 87

Potassium cyanide, 205, 237

Potassium ferricyanide, 204

Potassium nitrate, 47

Potassium picrate, 202

Preparation,

of dinitrobenzene, 242

dinitrotoluenes, 285

mononitrotoluenes, 271

nitrophenols, 479

tetranitromethane, 593

unsymmetrical trinitrotoluenes, 336

Pressling - see Phenothiazine tetranitrosulp-

oxide

Propionanilide, nitration of, 12

Pseudo-acid, 21

Pseudonitroles, 184

Pyrocatechol, 535

Pyrosulphuric acid, 13

γ− Radiation, in nitration, 126

Raman quantum efficiency, 43

Raman spectra - see Spectra, Raman

Rate of detonation, of trinitrotoluene,

Rate of nitration, 72, 153

X-Ray spectra - see Spectra, X-ray

Reaction rate, 67

Reactivity, of nitro group, 192

Reinsdorf, factory, 391

Resazurin, 480

Resorufin, 480

Resorcinol, 535

Roozeboom’s system, 429

321