Sodium 5,5′-azotetrazolate (Na₂AzT) is a starting material for various azotetrazole salts that find applications as lead-free primary explosives or high-nitrogen compounds for inflating safety systems (in particular, guanidinium azotetrazolate, GZT). Sodium azotetrazolate, after preparation, is commonly isolated as the pentahydrate, which is relatively safe for handling. But it readily loses hydrate water molecules at higher temperatures or by treatment with organic solvents. In such cases, sensitivity to mechanical stimuli increases considerably and explosion accidents may occur. In this work, the thermal conditions and the role of solvents in water loss from sodium 5,5′-azotetrazolate pentahydrate are presented. Impact and friction sensitivity parameters of the products are described. In the case of guanidinium azotetrazolate, the process for its preparation without producing sodium 5,5′-azotetrazolate is introduced, thus avoiding manipulation of hazardous material and increasing the safety of the procedure.

中文翻译：

---

一锅法合成 5,5′-偶氮四唑酸铍，避免分离有害的 5,5′-偶氮四唑酸钠


5,5′-偶氮四唑酸钠 （Na₂AzT） 是各种偶氮四唑盐的起始材料，可用作无铅初级炸药或高氮化合物，用于充气安全系统（特别是偶氮四唑酸胍，GZT）。偶氮四唑酸钠在制备后通常被分离为五水合物，处理起来相对安全。但它在较高温度下或用有机溶剂处理很容易失去水合物水分子。在这种情况下，对机械刺激的敏感性会大大增加，并可能发生爆炸事故。在这项工作中，介绍了热条件和溶剂在 5,5′-偶氮四唑酸钠五水合物水分损失中的作用。描述了产品的冲击和摩擦敏感性参数。在固氮四唑酸胍的情况下，引入了不产生 5,5'-偶氮四唑酸钠的制备过程，从而避免了对有害材料的操纵并提高了程序的安全性。