She wrote her name in the condensation on the side of her tea glass.
At every stage of the geographical cycle the land forms, as they exist at that stage, are concerned in guiding the condensation and flow of water in certain definite ways.
The condensation of a nebula could be followed in the same manner as we can study the growth of the trees in the forest, by comparing the trees of various ages which the forest contains at the same time.
Malonic acid, as well as its esters, is characterized by the large number of condensation products it can form.
An objectionable feature of the system of allowing the vapour to escape from the still to the condenser through a loaded valve, viz: the irregularity of the distillation, is thus removed, and the benefits of regular vaporization and condensation under high pressure are obtained.
In the American petroleum refineries it is found that sufficient cracking can be produced by slow distillation in stills of which the upper part is sufficiently cool to allow of the condensation of the vapours of the less volatile hydrocarbons, the condensed liquid thus falling back into the heated body of oil.
An important class of compounds, termed amines (q.v.), results from the condensation of alcohols with ammonia, water being eliminated between the alcoholic hydroxyl group and a hydrogen atom of the ammonia.
Compounds containing an oxy in addition to an aldehydic or ketonic group) undergo both condensation and oxidation when treated with phenylhydrazine, forming compounds known as osozones; these are of great importance in characterizing the sugars (q.v.).
Substituted acetylenes also exhibit this form of condensation; for instance, bromacetylene, BrC: CH, is readily converted into tribrombenzene, while propiolic acid, HC: C. COOH, under the influence of sunlight, gives benzene tricarboxylic acid.
4]-trimethylbenzene or pseudocumene; and of the condensation product of two molecules of isovaleryl aldehyde with one of acetone, C 3 H 7 CH 2 CH:C(C 3 H 7) CH:CH CO.
A more accurate expression (see Condensation Of Gases and Molecule) is (p+a/v 2) (v - b) =RT, in which a and b are quantities which depend on the composition of the gas, and vary from one gas to another.
A notable example is provided by the phthaleins, which result by the condensation of phthalic anhydride with phenols.
The effect of chemical agents in producing coagulation are in consonance with what is known of other instances of polymeric or condensation changes, whilst the fact that the collection of globules separated by creaming after thorough washing, and therefore removal of all proteid, is susceptible of solidification into caoutchouc by a merely mechanical act such as churning, strongly supports the view that the character of the change is distinct from that of any alteration which may occur in the proteid constituents of the latex.
From 1861 onwards he devoted much attention to the question of diathermancy in gases and vapours, especially to the behaviour in this respect of dry and moist air, and to the thermal effects produced by the condensation of moisture on solid surfaces.
CH3ï¿½CHO+CH3MgI->CH3ï¿½CH?Mg H2 /C1.3 The lower members of the aliphatic series are characterized by their power of polymerization (see Formalin, and the account of Acetaldehyde below), and also by the so-called "aldol" condensation, acetaldehyde in this way forming aldol, CH 3 ï¿½[[Chohï¿½Ch 2 ï¿½Cho]].
By condensation of aldehydes with pyruvic acid and naphthylamines, the a-alkyl-naphthoquinoline-y-carboxylic acids are produced.
Pinner, Ber., 1892, 25, p. 1624): / NH N C?CsH 5 2C61 - 15 C +(CH 3 C0) 2 0 -> C6H5 C N; NH 2 N :C?CH3 or by the condensation of aromatic nitriles with acid chlorides in the presence of aluminium chloride (Eitner and Krafft, Ber., 1892, 25, p. 2263).
Freund, Ber., 1896, 29, p. 2483); by the condensation of hydrazides with acid amides; and by the distillation of the triazolones (see below) with phosphorus pentasulphide.