Wintek said the factory immediately stopped using the cleaner and has greatly improved working conditions at its factories since then.
胜华科技表示，联建立即停止了使用正己烷，自那以后已极大地改善了工作环境。Representative examples of common hydrocarbon solvents include hexane, toluene, xylene, and mixtures of aliphatic and aromatic hydrocarbons.
代表的例子共同碳氢化合物溶剂包括正己烷，甲苯，二甲苯和脂肪的混合物和多环芳烃。characteristic : brownish yellow flow powder with characteristic marigold flower odor . well soluble in water , hexane and vegetable oils.
性状：棕黄色流散性粉末，有菊花的特殊气味。易溶于水、植物油和正己烷。In this article conditional experiments on the amount of n- Hexane and water sample pretreatment for determining parameter were introduced.
并在正己烷用量、水样预处理等测试参数选择上做了条件试验。Using this system, lower explosion limits of methane mixing respectively with Hydrogen, Isobutane and normal hexane were determined.
运用该实验系统对分别混有氢气、异丁烷和正己烷的甲烷气体的爆炸下限进行了测定。N-pentane had a good desolventizing performance, a better extraction efficiency, and a low desolventizing temperature.
正戊烷浸出能力与正己烷相近，易脱溶，豆粕质量较优，用于低温豆粕的生产，具有较好应用前景。Enrich trichloroethylene in water with the method of hexane extraction, and determine it by capillary column gas chromatography.
采用正己烷萃取法对水中三氯乙烯进行富集，用毛细管柱气相色谱法进行测定；METHODS The hydroxyl groups of magnolol were protected using ketal reaction and the products were purified by recrystallization from hexane.
方法将厚朴酚两羟基用缩酮保护，再用正己烷重结晶分离纯化。The nicotine was purified with solvent extraction. Hexane was chosen as the extraction solvent.
溶剂萃取法纯化烟碱，选择正己烷作为萃取溶剂；