Absorptive power

Aufnahme-fahigkeit, /. absorbability, absorptivity, absorbing power capacity. -ge-Bchwindigkeit, /. absorption rate, -kolbeu, m. absorption flask, -pipette,/, a pipet calibrated to take up a definite volume. Cf. Ausflusspipette. -vermogen, n. absorptive power. 

Aufzieh geschwindigkeit,/. Dyeing) absorption rate, -krticke, /. Brewing) rouser. -ver-mdgen, n. Dyeing) absorptive power, sub-stantivity. 

Northeastern University has worked on a high-density storage system based on the absorption powers of carbon nanofilters. This form of storage could make direct-hydrogen cars practical. The National University in Singapore has had some encouraging results in this area. 

On standing, gelatinous aluminium hydroxide, which may initially have even more water occluded than indicated above, is converted into a form insoluble in both acids and alkalis, which is probably a hydrated form of the oxide A1203. Both forms, however, have strong absorptive power and will adsorb dyes, a property long used by the textile trade to dye rayon. The cloth is first impregnated with an aluminium salt (for example sulphate or acetate) when addition of a little alkali, such as sodium carbonate, causes aluminium hydroxide to deposit in the pores of the material. The presence of this aluminium hydroxide in the cloth helps the dye to bite by ad sorbing it—hence the name mordant (Latin mordere = to bite) dye process. 

Dawson, H.M. McCrae, J. "LIV.-Metal-Ammonia Compounds in Aqueous Solution. Part II. The Absorptive Powers of Dilute Solutions of Salts of the Alkali Metals," J. Chem. Soc. Trans., 1901, 79 > 493-511. 

A vessel of bone-ash, formed for this purpose, is termed a cupel or test and in usbg such vessels Tot assaying, the absorptive power of the oupel is the only agency employed to separate the gold from the lead and other oxidizable metals, as will be explained afterwards. It is otherwise in cupellation on the large scale In this oass the oupel Is soon saturated, and the greater part of the litharge is expelled by a different method. 

G. D. Liveing and J. Dewar examined the absorption spectrum of liquid air. H. Buff reported that dry air absorbs 50 to 60 per cent, of the heat rays from a source at about 100°, and that the absorptive power of dry air exceeds that of moist air. J. Tyndall, on the contrary, found air to be quite diathermous. N. Egorofl examined the absorption of sunlight by the atm., and H. Wild showed that if dust be excluded, dry or moist air absorbs very little light. 

Figure 3 Comparison of yellowing rates of untreated pulp and of pulps subjected to various ammonia treatments (44). The left and right ordinates are scaled so that the curves of the untreated pulp (control) coincide (dashed-dotted curve). (The nomenclature kX for the absorptivity, or absorption power, follows Parson s (15) use)...

Even carbon, in the form of charcoal, eatalytically decomposes hydrogen peroxide,9 its activity being apparently connected with its absorptive power for gases. 

Alloying elements exert a very important influence upon the occlusion of hydrogen by palladium. The absorptive power of commercial palladium is from 10 to 20 per cent, less than that of the pure metal, a fact that is attributed to the presence of small quantities of platinum and ruthenium.6... 

The first recorded isotherms of adsorption from solution were probably those reported by van Bemmelen in 1881 (Forrester and Giles, 1972). In his investigations of the absorptive power of soils, van Bemmelen noted the importance of the colloidal structure and drew attention to the relevance of the final state (i.e. equilibrium concentration) of the solution in contact with the soil. 

The AFO/OH family form an important catalytic system and numerous recipes have been reported for preparing catalysts of differing reactivity and absorptive power. Additionally, the basic character of the surface diminishes and the acidic nature increases in the following series amorphous A1 oxide hydrate < y-AlO(OH) < q -A1(OH)3 < y-AFOs (pHofisoelectric points 9.45,9.45-9.40,9.20,8.00, respectively). 

During the detection of ionization over the range of a-rays from polonium in a hydrogen atmosphere, abnormally rapid increases were observed when no solid window was present between the Po and the ionization chamber. This was not explainable by the volatility of Po nor to the transfer of Po together with the recoil atoms of Ra G. This was explained by the assumption that a hydride, H2P0 is formed, which diffuses into the ionization chamber. Such a compound is rapidly destroyed by a small concentration of air or through the action of a-rays. The formation of such a hydride would explain the very high absorption power of Pt and Pd for Po. 

ARh 12 442, ARi) 12-591, AA- 0 873, AA,3-a 0 530. Molecular heat of combustion at constant volume, 733,600 calories. Investigations on the dielectric constant have been carried out by Walden, and the complex CgHgHg- was isolated by Krause in a similar manner to the corresponding methyl body. Whilst mercury dimethyl possesses much the same absorptive power as mercuric chloride, the diethyl compound shows much greater absoiq tion. ... 

For exols conte onlv a small amt of NG (or NG +NGc), such as Permissible which contain a maximum of 10% NG + NGc, the dope must be of low absorptive power to prevent lowering the sensitivity of the expl mixts. Expls contg NG (or NG - NGc) and powdery or coarsely ground dopes are known as Powdery (or Straight) Dynamites... 

That silica and silicates possess strong absorptive power has been known for a long time as witness the use of diatomaceous earth, fuller s earth, clay, talc, etc. for adsorptive, absorptive and decolorizing processes. Silica gel is prepared from... 

Water absorption power, solubility, viscosity, freeze-thaw stability 1, water binding capacity, Brabender viscograph ... 

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