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Pentaerythritol Tetra nitrate (PETN) is a white crystalline material. The crystals are short and hexagonal free from needle shaped crystals, dust and visible impurities. PETN is used as an explosive core in detonating fuse as an high explosives and as a primary charge in detonators.
It is also used in shock tube along with aluminum powder. It is more sensitive to shock than other secondary explosives such as TNT. It is primarily used in boosters along with TNT, as an explosive core in detonating cord it is stable and can be stored without significant deterioration for longer than nitrocellulose and nitroglycerin.
PETN is classified as an “Explosives” and is stored in magazine on wooden platform.
| Nature | White Crystalline |
| Melting Point | 139C – 142C |
| Bulk Density | 0.80 – 0.90gmc/cc |
| Moisture for transportation | 25% |
| Foruse | 0.10% |
| Solubility | Insoluble in Acetone |
| Acidity as HNO3 | 0.20% |
| Alkalinity as Na2CO3 | 0.20% |
| Ash Content | 0.005% |
| Nitrogen Content | 17.5% minimum |
| Stability by Abel heat test | 80C for minutes minimum |
| Flow property | 220-240sec max (for 500gms through bore funnel) |
| Sieve Analysis |
a) Through BSS 18:100% Through BSS 100: <3% |
11.3kgs of wet PETN with 25% moisture is packed in double lined heavy gauges polythene bags and packed in corrugated Boxes each containing 25kgs.
ID No: Class : 3 DIV:2 Category: ZZ.
IMDG Classification (International maritime dangerous goods) Class: 1 Div: 1.1 Group: D UN No: Pages No storage category: II type ‘B’.