Explanation

The scientific name is pentaerythritol tetranitrate. The common code is PETN. penthrite is a transliteration of Russian T3H, white crystal, non hygroscopic, and non volatile at room temperature. Insoluble in water, slightly soluble in benzene, toluene, methanol, ethanol, cyclohexanol, etc., soluble in acetone, acetic acid, ethyl acetate, etc. density L77g/cm3 (22 ° C), pure melting point 142.91: |: melting point of industrial product (140.5 ± 0.5) ° (:. explosion tcmperature 225 ° C (Ss). density l? 0g/cra3_ The explosion heat is 6.32MJ/kg (gaseous water) at: the detonation velocity is 8.30km/s at density UOg/cnv *; density i_ 6_ The explosion pressure at 7g/? m3 is 31. |? GP_ A; The explosion temperature at the density of 1.77g/cm3 is about 4200K; The total explosion capacity is 790L/kf at the density of 1.65g/cm3 Impact sensitivity 100% (10kg. 25cm), friction sensitivity 92% (swing angle 90 °), work capacity 523mL (lead wall reaming value) or M5% (TNT equivalent), ferocity 22mm (lead column compression value) or 145% (TNT equivalent). The lower half decomposition period at 150 ° C is 157 minutes. Obtained by nitrating pentaerythritol with concentrated nitric acid. A layer of deterrent (such as paraffin) is coated on the surface of penthrite to produce passivation penthrite, which has low mechanical sensitivity. It is mainly used for composite explosive, detonating cord, booster charge and detonator charging.

Classification