- oxygen flask method
- 氧瓶法
English-Chinese chemistry dictionary (英汉化学大词典). 2013.
English-Chinese chemistry dictionary (英汉化学大词典). 2013.
Oxygen mask — A plastic oxygen mask on an ER patient. An oxygen mask provides a method to transfer breathing oxygen gas from a storage tank to the lungs. Oxygen masks may cover the nose and mouth (oral nasal mask) or the entire face (full face mask). They may… … Wikipedia
Schlenk flask — Infobox Laboratory equipment name = Schlenk flask caption = A selection of Schlenk flasks and, bottom right, a Schlenk tube acronym = other names = Schlenk tube uses = Vacuum Inert gas inventor = Wilhelm Schlenk manufacturer = model = related =… … Wikipedia
Partition coefficient — In chemistry and the pharmaceutical sciences, a partition (P) or distribution coefficient (D) is the ratio of concentrations of a compound in the two phases of a mixture of two immiscible solvents at equilibrium.[1] The terms gas/liquid partition … Wikipedia
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Distillation — Distiller and Distillery redirect here. For other uses, see Distiller (disambiguation) and Distillery (disambiguation). For other uses, see Distillation (disambiguation). Laboratory display of distillation: 1: A heating device 2: Still pot 3:… … Wikipedia
Aldol reaction — The aldol reaction is a powerful means of forming carbon–carbon bonds in organic chemistry.[1][2][3] Discovered independently by … Wikipedia
analysis — /euh nal euh sis/, n., pl. analyses / seez /. 1. the separating of any material or abstract entity into its constituent elements (opposed to synthesis). 2. this process as a method of studying the nature of something or of determining its… … Universalium
sample preparation — ▪ chemistry Introduction in analytical chemistry (chemistry), the processes in which a representative piece of material is extracted from a larger amount and readied for analysis. Sampling and sample preparation have a unique meaning and special … Universalium
Perfume — For other uses, see Perfume (disambiguation). The Perfume Maker, by Rodolphe Ernst Perfume (English: /ˈpɝː.fjuːm/, French parfum pronounced: [paʁ.fœ̃]) is a mixture of fragrant … Wikipedia
Degasification — is the removal of dissolved gases from liquids, especially water or aqueous solutions, in the fields of science and engineering. There are numerous possible methods for such removal of gases from solids. Gases are removed for various reasons.… … Wikipedia
Laboratory glassware — Three beakers, a conical flask, a graduated cylinder and a volumetric flask … Wikipedia