mixed aniline point
1Acid dissociation constant — Acetic acid, a weak acid, donates a proton (hydrogen ion, high …
2Propergol liquide — En astronautique, on appelle propergol liquide tout système chimique composé d un ou plusieurs ergols stockés à l état liquide pour produire, par décomposition ou par combustion, un mélange gazeux dont la détente à travers une tuyère fournit une… …
3Propergols liquides — Propergol liquide En astronautique, on appelle propergol liquide tout système chimique composé d un ou plusieurs ergols stockés à l état liquide pour produire, par décomposition ou par combustion, un mélange gazeux dont la détente à travers une… …
4technology, history of — Introduction the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… …
5chemical industry — Introduction complex of processes, operations, and organizations engaged in the manufacture of chemicals and their derivatives. Although the chemical industry may be described simply as the industry that uses chemistry and… …
6Nitrobenzene — Other names …
7Watercolor painting — For other uses, see Watercolors (disambiguation). An artist working on a watercolor using a round brush Watercolor (US) or watercolour (UK and Commonwealth), also aquarelle from French, is a painting method. A watercolor is the …
8Leather — For other uses, see Leather (disambiguation). Modern leather working tools Leather is a durable and flexible material created via the tanning of putrescible animal rawhide and skin, primarily cattlehide. It can be produced through different… …
9Serendipity — is the effect by which one accidentally discovers something fortunate, especially while looking for something else entirely. The word has been voted as one of the ten English words that were hardest to translate in June 2004 by a British… …
10test — 1. To prove; to try a substance; to determine the chemical nature of a substance by means of reagents. 2. A method of examination, as to determine the presence or absence of a definite disease or of some substance in any of the fluids, tissues,… …
