The urea-formaldehyde resin was made from industrial 36% formalin and 46% N carbamide in the laboratory. The urea-formaldehyde resin was used to imbed the insect specimens.
本文探讨了在实验室条件下利用工业用36 ％甲醛和含氮46％ 农用尿素合成脲醛树脂包埋昆虫标本的方法。
Hydrogen peroxide-Urea adduct; Carbamide perhydrate;
尿素-过氧化氢的加合物；
Hydrogen peroxide-Urea adduct; Carbamide perhydrate;
尿素-过氧化氢的加合物；
应用推荐