您要查找的是不是:
- tetraalkoxy pentane 四烷氧基戊烷
- Thermometers are filled with pentane or alcohol. 温度计盛有戊烷或酒精。
- Pentane can be used as the foamer of EPS (expandable polystyrene). 正戊烷及异戊烷可用于EPS(可发性聚苯乙烯)的发泡剂,也可作为分子筛脱蜡工艺的脱附剂。
- Identification of retention time can be accurately obtained using a pentane peak as a standard. 可以用戊烷峰来计算其它峰的保留时间。
- There will always be enough pentane in the syringe to leave a small peak on the chromatogram. 利用适当峰的峰面积,可以计算在每一种馏份和原油中的香芹酮和柠檬烯的含量。
- It's abstracted from the gas condensate and is mainly consisted of pentane and the other heavier hydrocarbon. 从未稳定凝析油中提取的,以戊烷及更重的烃类为主要成分的油品。
- A method for storing natural gas with pentane from natural gas condensate as solvent was proposed in this papaer. 提出一种以凝析油戊烷为溶剂贮存天然气的方法。
- Blowing agent of F11can be substituted by pentane,which is no harm to the environment. 发泡剂F11可用符合环保要求的戊烷完全替代;
- Absorbed by Amberlite XAD-2 resin. Elute with ether and pentane mixture (1:1) and methanol, the bound and free aroma can isolated efficiently. Amberlite XAD-2树脂吸附,结合乙醚戊烷混合液(1:1,V/V)、甲醇的依次洗脱,可以将苹果汁(皮)中的游离态与键合态芳香组分进行有效分离。
- This paper reviewed the methods of preparing the calibration gases of pentane and isopentane and discussed the GC analysis methods. 本文论述了正戊烷、异戊烷标准气体的制备方法,并就该标准气体的气相色谱分析方法进行了探讨。
- Synthesized a polymerizable chelate agent, 3 allyl 2,4 pentane dione. Its structure was verified by elementary analysis, FT IR, 1H NMR and MS. 合成了一种可聚合的螯合剂3-烯丙基-2,4-戊二酮,通过元素分析、红外光谱、质子核磁共振谱和质谱确证了产物的结构
- In any case one must keep in mind that a production plant using pentane requires both specific construction and manufacturing design and production process technology. 在任何情况下,我们都必须认识到使用戊烷的生产线需要特殊的结构、生产设计和加工工艺技术。
- The ether was synthesized from alkylchlorosilane and pentane 2,4 dione in the presence of imidazole under inert conditions by using anhydrous tetrahydrofuran as solvent. 经元素分析、漫反射红外光谱和高效液相色谱法对键合相进行了鉴定和评价。
- Benzene, cyclohexane and normal pentane etc. are frequently used as entrainers in industrial production of anhydrous alcohol through constant boiling and fine distillation. 工业生产中常用苯、环己烷、正戊烷等作夹带剂进行恒沸精馏生产无水乙醇。
- Natural gas basically is mixed by methane, ethane, propane the hydrocarbon such as butane kind composition, contain a few pentane above to recombine cent. 天然气主要由甲烷、乙烷、丙烷和丁烷等烃类组成,并含有少量戊烷以上重组分。
- This approach is based on the separation and quantitative measurement of specific fractions, such as polar, or polymeric compounds or individual components, inch as pentane or hexanal, which are known to be typically produced during autoxidation. 该方法以特殊组分的分离和定量测量为基础,例如极性的或聚合物,个别成分,如戊烷或已醛,是自氧化过程中的典型产物。
- However, simultaneously monitoring nitric oxide, carbon monoxide,hydro-peroxides, nitrites, nitrates, pentane and ethane in the breath, wouldallow a much more definitive diagnosis of asthma. 无论如何,同时地检测呼吸中的氧化一氮、一氧化碳、,过氧化氢物、亚硝酸盐、硝酸盐,、戊烷和乙烷,将能对哮喘做确定性的诊断。
- Paraffin blowing agents contain cyclopentane, n-pentane and isopentane (generally called pentane blowing agents), n-butane, isobutene etc., within which, pentane has found more applications. 烷烃类发泡剂有环戊烷、正戊烷、异戊烷(统称为戊烷类发泡剂)、正丁烷、异丁烷等,其中戊烷类发泡剂因沸点较高而得到较广泛的应用。
- The use of pentane in continuous plants has successfully replaced all other CFC-based blowing agents, thus transforming a technology with high PU consumption into an environmental-friendly process. 在连续生产线上使用的戊烷成功替代了所有其它以氯氟化碳为基础的发泡剂,因而高消耗聚氨酯的技术转变成为了环保的生产工艺。
- The properties of pentanes are indroduced briefly. The safety of pentane blown rigid foams for appliance is discussed. 简要介绍了戊烷发泡剂的性能,讨论了戊烷在冰箱硬泡发泡中的安全使用问题。