1. Results:In the qualitative analysis, all qualitative methods but potassium bichromate method were satisfactory. 结果:定性分析中,除重铬酸钾显色法所得结果不十分理想外,其他各定性实验均令人满意。
2. The oxidation of isosafrole is reaction with chromic anhydride-acetone, chromic anhydride-acetic acid, sodium bichromate-sulfuric acid and so on. 用三氧化铬-丙酮、三氧化铬-乙酸、重铬酸钠-硫酸等氧化剂对异黄樟油素进行了氧化反应。
3. Traditional phosphating solutions usually contain sodium nitrite, potassium bichromate, sodium fluoride and nickel nitrate which are detrimental to human body and environment. 常规磷化液中通常含有亚硝酸钠、重铬酸钾、氟化钠或硝酸镍等对人体和环境有害的物质。