No.118, East Dongfeng Road, Panlong District, Kunming, Yunnan
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TYH
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TNT explosive for coal mine
explosion
(1.) TNT is Trinitrotoluenes code (2.) Molecular Formula: C6H2（NO2）3CH3 (3.) Molecular Weight: **7.1. (4.) Oxygen Balance: **3.9%. 1.Physical Property of
TNT: (5.) Industrial TNT is pale yellow, yellow scaly, and toxic. Its steam and dust
can enter the body through the respiratory tract, the digestive tract and skin
contact, but it does not dissolve in water. (6.) The relative density of solid TNT is 1.*6 g/cm³, bulk density is: crystal
(0.9 ~ 1.0) g/cm3, scaly (0.*5 ~ 0.*5) g/cm3. (7.) Melting point of TNT is *0.0 ℃ to *1.8 ℃ (pure *1.8 ℃), while the boiling point is **0 ℃ (explosion) 2.Chemical Property of
TNT: TNT can be lit by flame, burn stably in the air, and belch black smoke. It will
turn to explosion in an airtight condition or burning with a high amount of
heap. Please pay special attention to this in production. TNT explosion characteristics of standard test conditions: (8) Detonation point: **0 ℃; (9) Standard drop test (hammer weight *0kg, drop weight *5cm) (*0) Impact sensitivity: *4.7 N.m. (*1) Friction sensitivity: 4% ~ 6%. (*2) Initiation Sensitivity: Minimum detonation dose mercuric fulminate is 0.*4 g, DDNP is 0.**3 g. (*3) Work Capability: The expanding value is (**5 ~ **0) ml. (*4) Brisance: lead column compression value is *6 mm. (*5) Detonation velocity: ***0 m/s. (*6) Specific volume: **0 l/kg; (*7) Explosion heat: ***0.*4 KJ/mol. (*8) Explosion temperature: ***7 k. (*9) Dangerous goods number: ****5. (*0) UN number: ***9. (*1) Heat of combustion: ***0.5 KJ/mol. Please note: under production condition, the explosion characteristics of TNT has very big change. With the increase of processing temperature, its impact
sensitivity increases, such as the melt TNT (*2 ℃ ~ **0 ℃), its impact
sensitivity is *2% ~ *6%, close to tetryl. Besides, TNT in the sunlight or ultraviolet radiation occurs a series of
isomerization process. It becomes dark brown, quality declines, sensitivity
higher. After **2 hours sunned, TNTs freezing point declines to *6.4 ℃, the
impact sensitivity will rise from 4% ~ 8% to *0%, the breaking point is **0 ℃ ~ **5 ℃.
