TABLE 1–2 Munitions Containing HD and HT in the Pueblo Chemical Depot Stockpile

Munition Type

Model No.

Chemical Fill

Energetics

Configuration

Number

105-mm cartridge

M60

1.4 kg HD

Burster: 0.12 kg tetrytol

Fuze: M51A5

Propellant: M67

Semifixed, complete projectile: includes fuze, burster. Propellant loaded in cartridge. Cartridges packed two per wooden box.

28,375

105-mm cartridge

M60

1.4 kg HD

0.12 kg tetrytol

Includes burster and nose plug but no fuze. On pallets.

355,043

155-mm projectile

M110

5.3 kg HD

0.19 kg tetrytol

Includes lifting plug and burster but no fuze. On pallets.

266,492

155-mm projectile

M104

5.3 kg HD

0.19 kg tetrytol

Includes lifting plug and burster but no fuze. On pallets.

33,062

4.2-inch mortar

M2A1

2.7 kg HD

0.064 kg tetryl

Propellant: M6

Includes propellant and ignition cartridge.

76,722

4.2-inch mortar

M2

2.6 kg HT

0.064 kg tetryl

Propellant: M6

Includes propellant and ignition cartridge.

20,384

 

Source: Adapted from U.S. Army, 1997.

TABLE 1–3 Physical Properties of Mustard Agents at Pueblo Chemical Depot

Agent Characteristic

HD

HT

Chemical formula

C4H8Cl2S

60% C4H8Cl2S, 40% T and impurities

Molecular weight

159.08

Not available

Boiling point (°C)

217

228

Freezing point (°C)

14.45

0 to 1.3

Vapor pressure (mm Hg)

0.072 at 20°C

 

Volatility (mg/m3)

75 at 0°C (32°F) (solid) 610 at 20°C (68°F) (liquid)

831 at 25°C (77°F)

Diffusion coefficient for vapor in air (cm2/sec)

0.060 at 20°C (68°F)

0.05 at 25°C (77°F)

Surface tension (dynes/cm)

43.2 at 20°C (68°F)

44 at 25°C (77°F)

Viscosity (cS)

3.95 at 20°C (68°F)

6.05 at 20°C (68°F)

Liquid density (g/cm3 at 20°C)

1.2685

1.22–1.24 (at ambient temperature)

Solubility (g/100 g of distilled water)

0.92 at 22°C (72°F); soluble in acetone, carbon tetrachloride, methyl chloride, tetrachloroethane, ethyl benzoate, ether

 

Heat of vaporization

(Btu/lb)

190

Not available

(J/g)

82

 

Heat of combustion

(Btu/lb)

8,100

Not available

(J/g)

3,482

 

 

Sources: Adapted from NRC, 1993; U.S. Army, 1988.



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