PVC 185, 186, 190–193, 197, 199,
200, 203, 206, 317
commercial grade 191
degraded 203
materials 203
particles 191
plasticised 187, 196, 199, 203
polymer 202, 203
tubing 313, 317
Pyrite 300, 302
Pyroxenes 214
Pyrrhotite 300, 302
Queen Neferati 245
Quenching 130, 140, 190
Radiation 15, 24, 69, 82, 194, 200,
203, 290
curing method 305
gamma 290
ionizing 24
ultraviolet 292
X-rays 15
Radical photolysis 70
Radicals 82, 190
peroxy 45
Radioactive 290
atoms 24
Radiocarbon dating 15, 24, 30, 289, 291
Radioacative minerals 24
Radiography 15, 290
Radiosensitivity 290
Rainfall 218
natural 219
urban 219
Rainwater 166, 235
infiltration 248
Rawhide 93, 94, 111
mallet heads 94
Reactions 36, 40, 46, 68, 69, 81, 82,
89, 90, 98, 99, 102, 124, 126,
189–191, 209, 216, 219–221,
245–247
acetylation 190
adsorption 235
anode 132
autocatalytic 203
autolytic 97
autoxidation 41
biochemical 246
cathode 132, 134
cathodic 325
chain 40, 41, 300
scission 203
chemical 48, 49, 94, 216, 220, 244,
245, 311
degradative 88
dehydrochlorination 203
deleterious 89
direct 200, 221
gas/solid 220
electrode 132
enzymatic 97
exothermic 209
explosive 189
free radical 41, 89
hydrolytic 114
ion-exchange 166
neutralisation 43
oxidative 114
photochemical 82, 200
photodegradative 69
primary 202
protective 117
rate of 48, 220
secondary 166
significant 82
tanning 98, 104, 108
Reburial 295, 307, 329
Redox 216, 313, 329
electrodes 314
Reducing
agents 45, 123–125, 302
active 123
strong 125
conditions 125
stringent 126
Reduction 89, 126, 140, 144, 150,
154, 155, 187, 206, 216, 231, 246,
290, 298, 313
alkaline sulfite 145
micro-biological 325364 Subject Index