A projectile with ground-air rocket by the burst of TNT has been designed for dispersing metaldehyde (MA) into the clouds on a large scale. 为了地面利用小火箭有效地对云大量撒播介乙醛,我们设计了一种用TNT分散介乙醛的药桂。
The method to improve the thermal stability of metaldehyde product and the recovery of acetaldehyde from the main by-product paraldehyde were discussed. 讨论了主要副产物三聚乙醛解聚回收乙醛的生产工艺及四聚乙醛产品热稳定性处理方法。
The determining conditions of metaldehyde,paraldehyde,acetaldehyde and nicotinamide were investigated by gas chromatography with correction factors.The method was reliable and rapid. 采用气相色谱法,结合校正因子,研究了四聚乙醛、三聚乙醛、乙醛和烟酰胺的测定条件。
Study on new synthesis of metaldehyde 四聚乙醛合成新工艺的研究
