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Formed percentage

ORR Apparent Electron-Transfer Number and the Formed Percentage of Peroxide Measured by RRDE Technique 221... [Pg.199]

As this study was focused on carbohydrates, the temperatiu e was an important parameter glucose and fructose in solution exist in different forms percentages at equilibrium of a-pyranose, 3-pyranose, a-fiiranose and 13-furanose are respectively 38, 62, 0, 0.1 for D-glucose and 2, 70, 5 and 23 for D-fiuctose. This temperature-dependant... [Pg.169]

Compounds formed Percentage Percentage Percentage Percentage Percentage... [Pg.129]

Class of beverage Dispensed form Percentage alcohol (volArol) Amount of beverage per unit of alcohol (10 mL) Number of units in a typical measure... [Pg.594]

Comparing the overall concentrations of these different carbons designated generally as structural patterns , measured before and after a process such as FCC or hydrocracking (see Chapter 10), enables the conversion to be monitored the simple knowledge of the percentage of condensed aromatic carbon of a feedstock gives an indication of its tendency to form coke. [Pg.69]

For detecting and percentage evaluation of the participation of the amount of austenite in the quenched structure of hyper-eutectoidal steel, devices manufactured by CMP type WIROTEST 202 and WIROTEST 12 finish (Table 1.) are applied. These devices allow to detea and evaluate the content of residual austenite as well as form the signal for part segregation with austenite content above the allowed amount, as well as parts with grinding burning... [Pg.21]

When an amine, or a solution of its hydrochloride, is added to an aqueous solution of chloroplatinic acid, a salt of the base with the cliloroplatinic acid, of general formula BjiHiPtCle (where B is one molecule of the base) is formed and usually crystallises out, for these chloroplatinates hai e normally a rather low solubility in cold water. The chloroplatinate can be filtered off, dried, and then analysed by direct ignition, when only the metallic platinum ultimately remains. Knowing the percentage of platinum in the chloroplatinate, the molecular weight of the latter, and hence of the constituent base, can readily be calculated. [Pg.449]

The method can therefore be used to estimate the percentage of aniline hydrochloride in a crude sample, provided the impurities are not themselves salts of other similar amines. Alternatively, if aniline is known to be a monacidic base (forming therefore a mono-hydrochloride) the molecular weight of aniline can be determined, since the molecular weight of the aniline hydrochloride is clearly that weight which is neutralised by 1000 ml. of vl/.NaOH solution. [Pg.454]

The former exhibits absorption tjrpical of an isolated keto group, whereas the latter shows a high intensity -band associated with the conjugated system HO—C=C—C=0. The proportions of the two forms under various conditions are readily determined from the ultraviolet spectra. The ultraviolet spectra in various solvents are shown in Fig. A, 7, 2. Since the absorption of the keto form is negligible, the percentage of enol present is 100(em/e ), where e is the observed extinction at 245 mp. and that of the pure enol. It was shown that in alcoholic solution is 1900 and the percentage of enol is 12. Thus e is ca. 16000, and use of this value permits the approximate evaluation of the enol content in different solvents. The results are collected in Table XII. [Pg.1148]

Vanadium is found in about 65 different minerals among which are carnotite, roscoelite, vanadinite, and patronite, important sources of the metal. Vanadium is also found in phosphate rock and certain iron ores, and is present in some crude oils in the form of organic complexes. It is also found in small percentages in meteorites. [Pg.71]

The efficiency of a synthetic transformation is normally expressed as a percent yield or percentage of the theo retical yield Theoretical yield IS the amount of prod uct that could be formed if the reaction proceeded to completion and did not lead to any products other than those given in the equation... [Pg.152]

Resources of Sulfur. In most of the technologies employed to convert phosphate rock to phosphate fertilizer, sulfur, in the form of sulfuric acid, is vital. Treatment of rock with sulfuric acid is the procedure for producing ordinary superphosphate fertilizer, and treatment of rock using a higher proportion of sulfuric acid is the first step in the production of phosphoric acid, a production intermediate for most other phosphate fertilizers. Over 1.8 tons of sulfur is consumed by the world fertilizer industry for each ton of fertilizer phosphoms produced, ie, 0.8 t of sulfur for each ton of total 13.7 X 10 t of sulfur consumed in the United States for all purposes in 1991, 60% was for the production of phosphate fertilizers (109). Worldwide the percentage was probably even higher. [Pg.245]

The air jet textured yam process is based on overfeeding a yam into a turbulent air jet so that the excess length forms into loops that are trapped in the yam stmcture. The air flow is unheated, turbulent, and asymmetrically impinges the yam. The process includes a heat stabilization zone. Key process variables include texturing speed, air pressure, percentage overfeed, filament linear density, air flow, spin finish, and fiber modulus (100). The loops create visual and tactile aesthetics similar to false twist textured and staple spun yams. [Pg.332]

Sulfuric acid loss is approximately 1.84% H2SO4 for each percentage of R2O2. Oleum consumption is increased to consume the water that is formed. The metal sulfates are more stable than metal fluorides under furnace conditions and are discharged from the process with the residue. [Pg.195]

Aerosol Shampoos. These shampoos constitute a very small percentage of the market. They have been available in two versions, ie, Hquid foam types and dry spray forms. The Hquid foam type, despite its convenience and appealing appearance, did not attain high general use. Factors involved in its low acceptabiHty include not only higher product cost but also serious stabiHty issues with can corrosion. [Pg.449]

Commercial lecithin is insoluble but infinitely dispersible in water. Treatment with water dissolves small amounts of its decomposition products and adsorbed or coacervated substances, eg, carbohydrates and salts, especially in the presence of ethanol. However, a small percentage of water dissolves or disperses in melted lecithin to form an imbibition. Lecithin forms imbibitions or absorbates with other solvents, eg, alcohols, glycols, esters, ketones, ethers, solutions of almost any organic and inorganic substance, and acetone. It is remarkable that the classic precipitant for phosphoHpids, eg, acetone, dissolves in melted lecithin readily to form a thin, uniform imbibition. Imbibition often is used to bring a reactant in intimate contact with lecithin in the preparation of lecithin derivatives. [Pg.99]

Manganese Oxides. Manganese(IV) dioxide rarely corresponds to the expected stoichiometric composition of Mn02, but is more reahsticaHy represented by the formula MnO y 2 q, because invariably contains varying percentages of lower valent manganese. It also exists in a number of different crystal forms, in various states of hydration, and with a variety of contents of foreign ions. [Pg.508]


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