See _Paraffin oil_
spirit, addition of, to generator water,
composition of,
for carburetted acetylene,
spirits, nomenclature of,
theory of origin of,
Pfeiffer, purifier,
Pfleger, puratylene,
Phenol, production of, from acetylene,
Phos burners,
Phosphine, cause of deposit at burner orifices,
composition of,
in crude acetylene,
amount of,
toxicity of,
Phosphoretted hydrogen. See _Phosphine_
Phosphorus and incandescent mantles,
"compounds,"
in crude acetylene,
in purified acetylene,
detection and determination of,
removal of,
"Phossy-jaw,"
Photometer, jet of acetylene,
Phylloxera, use of acetylene for,
Physical properties of acetylene,
Pickering, freezing-points of calcium chloride solutions,
Pictet, freezing-points of dilute alcohol,
purification of acetylene,
Pintsch burners,
Pipes, blow-off. See _Vent-pipes_
diameter of, and explosive limits,
vent. See _Vent-pipes_ (See also _Mains_)
Plant, acetylene, fire risks of,
order of items in,
Platinum in burners,
Poisonous nature of acetylene,
Pole, motion of fluids in pipes,
pressure thrown by holders,
Polymerisation, definition of,
of acetylene,
See also _Overheating_
Porous matter, absorption of acetylene in,
Portable lamps,
acetone process for,
temperature in,
Potassium bichromate purifier,
hydroxide purifier,
permanganate purifier,
Power from acetylene, production of,
Precautions with generators,
with new installations,
Presence of moisture in acetylene,
Pressure and leakage,
after explosions of acetylene,
atmospheric,
automatic generators working by,
correction of gas volumes for,
critical, of acetylene,
definition of (gas),
for incandescent burners,
self-luminous burners,
gauge,
liquid for,
given by displacement holders,
rising holders,
in generators,
utilisation of,
in mains and pipes,
in purifiers, loss of,
irregular, caused by vent-pipes,
maximum safe, for acetylene,
necessity for regular,
partial,
regulators.
Pages:
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785