
化學半成品;化學中間體
Mainly used as solvent and chemical intermediate.
主要用作溶劑,化學中間體。
If you put the Lighting Bag in a cup of chemical intermediate, the tea bag will burst into flames, and then the cup is lighting.
這個茶包放進有化學介質的杯子裡就會燃燒,然後杯子就被點亮了。 新春課程溫暖上線,春季,和網校一起成長!
As a chemical intermediate in the production of plasticisers, flotation agents etc.
作為制造增塑劑,浮選劑等之中間體。
Mainly used as solvent, chemical intermediate and additive for fuels.
主要用作溶劑,化學中間體以及燃料添加劑。
Furfural is also used as a chemical intermediate in the production of the solvents furan and tetrahydrofuran.
在合成樹脂生産中可以用來生産呋喃樹脂、糠醛樹脂、糠醇樹脂等;
If you put the Lighting Bag in a cup of chemical intermediate, the tea bag will burst into flames, and then the cup is lighting.
這個茶包放進有化學介質的杯子裡就會燃燒,然後杯子就被點亮了。
The products of medicine and chemical intermediate are Bromoacetaldehyde Diethylacetal, ThiamazoleTablets, etc.
醫藥、化工中間體有溴化阿西酞、甲巯咪唑等。
Glutaraldehyde was an important chemical intermediate and fine chemical product. The preparing methods and applications of glutaraldehyde were reviewed.
綜述了*********制備方法研究的曆史和現況。并對其合成及應用前景作了評述和展望。
Also a chemical intermediate in the production of nylon .
也是制造尼龍的中間體。
Pharmaceutical, chemical intermediate, mainly used in pharmaceutical synthesis and other drug materials.
醫藥、化工中間體,主要用于醫藥合成及其他藥物原料。
Fatty acid methyl ester is a significant chemical engineering intermediate, which had extensive application area, such as: synthesized multiple surface active agents;
脂肪酸甲酯是重要的化工中間體,具有廣泛的應用領域,如可用來合成多種表面活性劑;
The invention relates to a two steps electrolytic zinc plating method that coats chemical nickel plating intermediate transition layer on magnesium alloy.
一種*********上作為化學鍍鎳中間過渡層的兩步電鍍鋅方法,屬于金屬 表面腐蝕與防護處理技術領域。
The product be used for electric chemical, an intermediate of medicine compound , etc.
本品用于電子化學品、醫藥中間體等。
As a raw material and intermediate in chemical industry, the pimelic acid was also applied as a polymeric material in Biological and Medical Industry.
庚二酸是制備許多重要化工産品的原料和中間體,廣泛應用于功能高分子材料或生物醫藥研究。
Chemical analysis of pesticide intermediate 3hydroxypropionitrile is reported in this paper.
提出了一種農藥中間體3- ************的化學分析方法。
化學中間體(Chemical Intermediate) 是指在化工生産過程中産生,并主要用于進一步合成其他化學品的物質。它們通常是化學反應序列中的過渡産物,而非最終面向消費者的終端産品。其核心特點與應用如下:
定義與角色
化學中間體是化學合成路徑中的關鍵步驟。原料(起始物料)經過一步或多步化學反應轉化為中間體,中間體再經過後續反應最終生成目标産物(如藥品、農藥、塑料、染料等)。它充當了原料與最終産品之間的“橋梁”或“中轉站”。
來源:國際純粹與應用化學聯合會(IUPAC)對化學中間體的基本定義。
關鍵特征
來源:化學工程與工藝學領域的标準教材及行業實踐。
應用領域舉例
來源:美國化學會(ACS)出版物及行業報告對化工産業鍊的分析。
與相關概念的區别
來源:化學工藝學中對化工生産物料流的通用分類。
化學中間體是現代化學工業的基石,是連接基礎原料與高附加值終端化學品的不可或缺的環節。其高效、安全、環保的生産對整個化工産業鍊的可持續發展至關重要。
(注:權威定義可參考國際純粹與應用化學聯合會IUPAC術語庫Gold Book中相關條目)
“Chemical intermediate”是由“chemical”和“intermediate”組合而成的專業術語,以下是分項解釋:
Chemical(化學的)
Intermediate(中間體)
Chemical intermediate(化學中間體)指在化學反應鍊中短暫存在的物質,其特點包括:
如需更完整的定義或具體化合物示例,可參考化學專業詞典或文獻()。
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