The structure of the obtained flame retardant was identified by IR, 1HNMR and elementary analysis. In addition, the effects of water-trappingagent and catalyst on the reaction are discussed.
用元素分析、IR、1HNMR验证了化合物的结构，分析了除水剂、 催化剂等反应条件对反应结果的影响。
2
It acts as a self-cleaning agent to keep ears healthy by trapping dirt, dust, and other small matter, keeping them from getting farther into the ear.
The invention relates to a special killing agent for preventing, removing, trapping, and killing cockroaches, ants, greyish brown ants, brown ants, and formica rusca Linnaeus.