urbaf2

ALIPHATIC NITRO COMPOUNDS^585

TABLE 122

°F °C Number of Number of

tests explosions

60-90 15.6-32.2 numerous 0

100-110 31.8-43.3 25 1

120-125 38.9-51.7 13 4

130-140 54.4-60^105

160-180 71.1-82.2 18 13

The data on the rate of detonation of nitromethane have been obtained only

recently.
Médard [12] found the rate to be 6600±132 m/sec when in a glass tube 30 mm

in diameter and 1.8 mm thick, or in an aluminium tube of the same diameter and 2.5 mm

thick. A particularly strong initiator was used. Nachmani and Manheimer [39]

reported lower figures (Table 123 and 124).

TABLE 123

NITROMETHANE CONFINED IN PAPER

Diameter Detonation rate

mm m/sec

44 6280

34 6260

29 6150

26.5 partial detonation

25 no detonation

TABLE 124

NITROMETHANE CONFINED

Internal Wall Detonation

Tubes made of: diameter thickness rate

mm mm m/sec

iron 40 4 6320

27 3 6300

25 17 6280

brass 7 0.8 6060

polyvinyl chloride 7.5 1.0 no detonation

rubber^82 ,,

(^103) ,,
polyester^87 ,,