闪点

A simple approximate estimation experiential formula of the mixture of the flammable liquids is then put forward.

对多元混合可燃液体闪点的变化规律进行了研究，提出了一个简便的闪点估算经验式。

Simple approximate estimation experiential formula of the mixture of the flammable liquids is then put forward.

bstract 对多元混合可燃液体闪点的变化规律进行了研究，提出了一个简便的闪点估算经验式。

"Any liquid having a closed- cup flash point of 60.5°C or below.

5，3，任何液体的闭杯式闪点闪点测定在 60.5。

Most of the standard test methods for determining petroleum products flashing point in the world are discussed, also mentioning the origin and development of flashing point.

介绍了闪点试验起源和发展以及国内外测定石油产品闪点的主要标准方法。

The reaction time, reaction temperature and catalyst influencing on esterification were investigated, and the acid value, flashing point and other properties were determined.

考察了反应时间、反应温度、催化剂等反应条件对酯化反应的影响，并对增塑剂的酸值、闪点及其他主要性能指标进行了测定，改进了酯化反应工艺条件，讨论了样品色泽、酸值及闪点的影响因素。

The relationship between the boiling point, flashing point and molecular structure of 30 halogenated benzenes and halogenated benzaldehydes was studied by using quantitative structure-property relationship technique. The result indicated that there was significant correlation between boiling point, flashing point and the group dyeing index of halogenated benzenes and halogenated benzaldehydes.

运用定量结构－性质相关技术研究了30种卤代苯、卤代苯甲醛化合物的沸点和闪点与分子结构间的定量关系，结果表明，卤代苯和卤代苯甲醛的沸点和闪点与基团染色指数具有显著相关性。

Because the carbonyl in its structure is with strongly absorb-electron effect, so it is a kind of non-proton polarity solvent with high boiling point, high flash point and low melting point, use conveniently for many processing operation such as filtration, distillation, solvent extraction, and so on; it is with very low toxicity, so the harm to human body is inappreciable, and reduce the environment pollution; due to its very strong dissolvability, it can dissolve organic matter, inorganic matter, resin, polymer, etc., and activate all kinds of reagent, mix to dissolve the other high boiling point solvents; it is with very good stability, it is stable under the hot strong alkali and acidity condition, it is with water-resistance and light, oxygen stability.

246℃ m.p：—20℃闪点121℃ flash point： 121℃分子式：C6H12N2O molecular formula： C6H12N2O 分子量128.18 molecular weight： 128.18 二、DMPU的化学性质 Chemical character of DMPU 其结构中由于羰基具有强烈的吸电子效应，因而它是一种非质子的极性溶剂，具有高沸点、高闪点、低熔点，在过滤、蒸馏、溶剂萃取等工艺操作中使用方便；毒性极低，对人体危害微不足道，也减少了对环境的污染；由于它具有极强的溶解性，能溶解有机物、无机物、树脂、聚合物等，并对各种试剂具有活化性质，还能与其它高沸点溶剂混溶；具有极好的稳定性，在热的强碱和酸性条件下都很稳定，还具有耐水性及对光、氧的稳定性。

The mutative rules of the flash point of the multifold mixture of the flammable liquid s are firstly examined in this paper.

对多元混合可燃液体闪点的变化规律进行了研究，提出了一个简便的闪点估算经验式。

The change of the flash point of the mixed trivalent alcohol and the mixed trivalent ether and the mixed alcohol -ether has been studied in this paper by the open crucible flash point mensural apparatus,the experiential formula in fixed condition are projected,and the change regularity of the flash point of the mixed liquid are figured in this paper.

利用开杯闪点测定仪对三元醇类混合、三元醚类混合、醇醚混合等不同情况下混合液体的闪点变化进行了实验研究，推算出了三元混合液体在规定实验条件下闪点变化的经验公式，并用图示法分析了混合液体闪点随配比的变化规律。

The flash point and the spontaneous ignition temperature of binary flammable liquid mixtures consisting of alcohol species,ketone species,aether species and ester species with different proportion were studied by automatic closed-cup flash point tester and automatic ignition temperature detector.

利用自动低温闭口闪点测定仪、自动引燃温度测定仪对醇、酮、醚、酯等不同情况下组成的二元混合液体的闪点、自燃点变化规律进行了实验研究，采用Taylor多项式，拟合出了常压下二元混合液体闪点、自燃点随组分配比变化的经验计算公式，并通过实验数据对其进行了验证。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。