For many years the leading fixatives were the animal products ambergris, civet, musk and castoreum.多年来,用的较多的固定剂是动物制品龙涎香 、 香猫香 、 麝香、以及河狸香.Ambergris is the concretion in the intestine of the sperm - whale.龙涎香是抹香鲸肠内的结石.A ch...
During baking, bromates are completely reduced to bromides with no bromination of flour constituents.在焙烤过程中, 不用通过面粉各组分的溴化作用,溴酸盐也会全部彻底地还原成溴化物.Methyl cis - cinnamate was synthesized from ethyl trans - cinnamate by brominat...