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Storage after

Back [208] had found that hydrophobic wood-inherent chemicals oxidize or polymerize during storage after harvesting, as also can be seen from their lower extractability. With this effect, the ability of the wood extractives to migrate to a new surface is reduced. [Pg.1084]

Heat Tests. International heat test at 75° resulted in a 0.05% wt loss. It is not appreciably affected by storage after one year at 50° (Refs 14, 19 20). Vacuum stability test at 120° -... [Pg.285]

Equipment Check-out. A large table next to the check-out window can be very valuable. Prior to class, equipment needed can be taken from the shelves and lined up on the table, ready for quick delivery to the students. When returned, it is placed on the table and taken back to storage after the end of the period rush is over. [Pg.13]

Fig. 4 and 5 Time taken for VFA to reach 0.65 and 0.23 g/1 during storage after treatment against treatment residence time. Low ( ), medium ( ), and high ( ) aeration rates... [Pg.293]

The reservoir was filled with 3-4 L of the stock solution (original), and the entire system was rinsed thoroughly with approximately 1 L of solution, which was discarded. The volume of the cells, tubing, etc. was estimated to be approximately 200 10 mL, whereas the surge tank retained approximately 100 mL of fluid. Initially the concentration of the stock solution was determined to verify whether any loss had occurred during storage. After the run was started, the system was equilibrated by collecting at least 10 mL of the permeate from the slowest membrane, and the solution left in the reservoir was then called the feed solution . The actual volume of the feed solution was determined at time... [Pg.173]

Initially, at room temperature, the chlorine reacted rapidly with the humus. This reaction was evident by the change in color of the solution from a thick black to a transparent brown immediately after the addition of the chlorine. A drastic drop of pH was observed after 17 h (e.g., a drop from 7.0 to 2.6 while being chlorinated at neutral pH). Any storage after 90 h was at 4 °C for no more than 48 additional hours. The chlorinated samples were lyophilized to dryness and stored in a refrigerator. The acetone-soluble fraction of each sample was subjected to the following analyses. [Pg.189]

The resin is backwashed with water to remove fines as well as the sodium chloride and sodium carbonate used to inhibit growth of bacteria and mold during storage. After backwashing, the resin remains covered with water and is then drained while methanol or acetone is... [Pg.272]

On the one hand, wine is a typical preserved food because its shelf life is affected by time and temperature during storage. Conversely, many wines are considerably improved by moderate storage after packaging. Much has been written about the development of bottle bouquet during the aging of wine in glass (13, 14, 15, 16, 17). [Pg.234]

C7H5Ns S06 mw 287.23 N 24.39% OB to C02 -47.35% an unstable solid which, within 4 wks of storage after prepn, turns into a v viscous liq mp expl decompn at 70°. Prepn is by the nitration of 4-thiocyanoacetanilide with abs nitric acid at —10°... [Pg.713]

The same kinds of ortho- and oxo-forms were discovered in the mass-spectra of Al(OMe)3. Its most reactive (young) forms were also obtained for Al(OEt)3 obtained under mild conditions — on alcohol interchange from Al(OPii)3 in benzene at 20°C [1640]. In storage in the samples of Al(OMe)3 and Al(OEt)jin the amorphous matrix there occurs crystallization of the polymeric layered structure of Al(OH)3 bayerite type, which on longer storage (after several years) transforms into the Al(OH)3 gjbbsite phase [1366]. The difference in reactivity of old and young Al(OMe)3 is clearly displayed in their complex formation with NaOMe [887]. [Pg.82]

Brick from demolished building from Bavaria only sample 26 was fumigated 16 h fumigation with 0.3 Vol.%, Storage after fumigation for 120 days at room temperature. No sealing with paraffin ... [Pg.267]

Storage after removal from stability chamber Time between receipt of samples and start of testing Holding of samples and sample solutions for investigations of OOS Disposition of unused samples Documentation... [Pg.215]

Various tests were carried out in an attempt to obtain further information concerning the nature of the chromophoric groups involved. To study the influence of extractives and other low molecular mass compounds, samples of unbleached and peroxide-bleached groundwood were extracted with acetone and then irradiated. These samples showed a brightness increase upon storage after irradiation but not to the same extent as the reference samples and, thus, part of the reactions responsible may occur in the low molecular compounds removed by extraction. [Pg.152]

Types of capacitors and mode of energy storage after Ref.206 Reprinted from B.E. Conway, Electrochemical supercapacitors. Scientific Fundamentals and Technological Applications, Kluwer Academic/Plenum Publishers, New York (1999). Copyright 1999 with permission from Kluwer Academic Pubhshers. [Pg.69]

Although somewhat difficult to purify, acetonitrile is stable on storage after purification. It is toxic, with a maximum recommended limit of 40 ppm,79 and the vapor pressure is sufficient for this to be a hazard. Its high volatility makes the removal of solvent by evaporation easy (e.g., workup of a reaction mixture for product identification). Both radical cations and anions react with traces of wate r in acetonitrile, and, because it does not hydrogen-bond to water as do dimethyl sulfoxide and dimethylformamide, radical anions generally have a... [Pg.329]


See other pages where Storage after is mentioned: [Pg.267]    [Pg.21]    [Pg.857]    [Pg.355]    [Pg.179]    [Pg.241]    [Pg.381]    [Pg.120]    [Pg.801]    [Pg.497]    [Pg.284]    [Pg.391]    [Pg.391]    [Pg.137]    [Pg.33]    [Pg.130]    [Pg.457]    [Pg.189]    [Pg.24]    [Pg.387]    [Pg.78]    [Pg.81]    [Pg.818]    [Pg.404]    [Pg.209]    [Pg.15]    [Pg.902]    [Pg.904]    [Pg.493]    [Pg.208]    [Pg.209]    [Pg.154]    [Pg.298]    [Pg.138]   
See also in sourсe #XX -- [ Pg.317 ]




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