duodecimal number; duodecimal numeral是什么意思

用法例句

The process industrial synthsis of tert-dodecyl mercaptan from dodecylene and hydrogen sulfide with aluminium trichloride as catalyst was introduced,which consists of four units including the preparation of catalyst,purification of raw dodecylene,additive reaction and separation of reaction product.

介绍了以无水三氯化铝络合物为催化剂,十二烯和硫化氢直接加成法生产叔十二烷基硫醇的工业试验工艺。

Synthesis of dodecanol/melamine-formaldehyde resin with core-shell structure;

十二醇/三聚氰胺-甲醛核壳结构材料的制备

The phase change temperature study of binary system dodecanol-fatty acids as low temperature phase change material(PCM);

低温相变材料十二醇-脂肪酸二元体系相变温度的研究

Study on Preparation and performance of dodecanol/bentonite composite phase change material;

十二醇/蒙脱土复合相变储能材料的制备及性能研究

2-Oxocyclododecylsulfonamide(C) had been synthesized by amination of 2-oxocyclododecylsulfonic acid chloride, obtained from the cyclododecanone(A) via 2-oxocyclododecylsulfonic acid(B).

以环十二酮(A)为起始原料,经磺化反应制备得到2-氧代环十二烷基磺酸盐B,B经过氯化和胺解反应制备得到2-氧代环十二烷基磺酰胺C,C经过苯氧酰化与胺解反应后合成了10个新的2-氧代环十二烷基磺酰脲类化合物D,它们的结构通过了1HNMR和IR的确证。

N substituted cyclododecanone thiosemicarbazones(4) were synthesized by condensation reaction of cyclododecanone and N substituted thiosemicarbazide.

通过环十二酮与 N -取代氨基硫脲的缩合反应 ,合成了一系列 N -取代环十二酮缩氨基硫脲 ,经Mn O2 氧化关环 ,得到 1 5种未见文献报道的标题化合物 ,其结构经 IR,1 3C NMR,元素分析的确证 。

The preparation of cyclododecanone and its application in organic synthesis of perfumes,pesticides and materials were reviewed in details.

综述了环十二酮的制备方法及其在香料、农药、材料合成中的应用,同时对各种制备方法进行了简要的评价。