Explanation

The chemical name is - (5-tetrazolyl) -4-imidazolium tetraene hydrate, referred to as tetracene or tertracin. Molecular formula C2H4N8O, molecular weight 188. tetracene is white to light yellow crystalline powder, belonging to monoclinic system. It is prepared by diazotization reaction of aminoguanidine nitrate with nitrite in a weak acid medium. In actual preparation, aminoguanidine bicarbonate is used as raw material, which is first dissolved in dilute nitric acid to prepare aminoguanidine nitrate solution, then adjusted the pH value, and sodium nitrite solution is added at a certain temperature. The relative density of tetracene is 1.65, the decomposition peak temperature is 146 ° C (10 ° C/min), and the apparent density is 0.45g/cm3. Hygroscopicity: At 30 ° C and 90% relative humidity, the moisture absorption is 0.77%. The 5s explosion tcmperature is 160 ° C, and military explosive cannot be detonated separately. The explosion heat is 2771J/g, and the specific volume of explosion is 100mL/g. Impact sensitivity: upper limit 6cm, lower limit 3cm (400g drop hammer, 20mg sample); 7cm (10% explosion, 2kg drop key, 20mg sample). Friction sensitivity 70% (0.6MPa, 80 ° swing angle, 10mg sample), flame sensitivity 15cm (100% ignition, standard condition). Compatibility: Under normal temperature, it will not react with most metallic materials, commonly used percussion composition and acupuncture composition, and has good compatibility. The main advantages of tetracene are high impact sensitivity and acupuncture sensitivity. It is widely used as a sensitizer component of percussion composition and acupuncture medicine. Although the dosage is small, it plays an important role in regulating the mechanical sensitivity of mixed medicine.

Classification