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R. Meyer J. Köhler A. Homburg Explosives

R. Meyer J. Köhler A. Homburg Explosives

R. Meyer J. Köhler A. Homburg Explosives

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Propyl Nitrate<br />

Propyl Nitrate<br />

Propylnitrat; nitrate de propyle<br />

n-propyl nitrate, NPN<br />

isopropyl nitrate, IPN<br />

colorless liquid<br />

empirical formula: C3H7NO3<br />

molecular weight: 105.1<br />

energy of formation:<br />

n: –1911 kJ/kg<br />

iso: –2057 kJ/kg<br />

enthalpy of formation:<br />

n: –2041 kJ/kg<br />

iso: –2184 kJ/kg<br />

oxygen balance: –99.0%<br />

nitrogen content: 13.33%<br />

heat of explosion (H2O liq.):<br />

n: 3272 kJ/kg<br />

iso: 3126 kJ/kg<br />

density:<br />

n: 1.058 g/cm3 (20 °C)<br />

iso: 1.036 g/cm3 (20 °C)<br />

impact sensitivity: up to 5 kpm = 49 Nm no reaction<br />

n-Propyl nitrate serves as a W Monergol in liquid propellant rockets.<br />

Isopropylnitrate is used in W themobaric explosives together with<br />

Magnesium.<br />

Pulsed Infusion Shotfiring<br />

268<br />

Stoßtränkungssprengen; Drucktränksprengen; tir d’imprégnation<br />

This blasting technique combines the effect of an explosive charge in<br />

coal mine blasting with the effect of water pressure. The borehole is<br />

loaded with the explosive charge, after which water is pressed into the<br />

borehole with the aid of the so-called water infusion pipe, and the<br />

charge is ignited while maintaining the water pressure. The pressure<br />

shock in the water causes the coal to disintegrate into large lumps.<br />

In addition, the water fog, which is produced at the same time, causes<br />

the dust to settle to the ground.

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