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R. Meyer J. Köhler A. Homburg Explosives

R. Meyer J. Köhler A. Homburg Explosives

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Petroleum Jelly<br />

W Vacuum Test at 120 °C (248 °F):<br />

not more than 5 cm 3<br />

Pentaerythrol (raw material):<br />

C(CH2OH)4<br />

molecular weight: 136.15<br />

melting point: 260.5 °C (501 °F)<br />

Specifications<br />

melting point:<br />

beginning not below 230 °C (446 °F)<br />

moisture: not more than 0.5 %<br />

chlorides: none<br />

not more than 0.5 %<br />

reaction:<br />

reducing matter (AgNO3-NH3-test):<br />

neutral<br />

not more than traces<br />

Petroleum Jelly<br />

Vaseline<br />

This substance is used as a gunpowder stabilizer. It is believed that<br />

the stabilizing effect is due to the presence of unsaturated hydrocarbons,<br />

which are capable of binding any decomposition products<br />

formed.<br />

Phlegmatization<br />

252<br />

The impact sensitivity and friction sensitivity of highly sensitive crystalline<br />

explosives (e.g., W Hexogen and W PETN) can be reduced to a<br />

considerable extent by the addition of small amounts of a phlegmatizer.<br />

This can be an organic polymer or plasticizer, which may act as a<br />

lubricant or elastifying agent. For pressed charges it was wax that<br />

serves as a desirable lubricant and as a binder. RDX, PETN, and<br />

W Octogen cannot be compacted by pressing, unless they contain<br />

phlegmatization additives. Wax can also be added to pourable mixtures<br />

if they contain aluminum powder (W Torpex).

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