Calcium Chromium

Regulatory role or role in hormone action Calcium, chromium, iodine, magnesium, manganese, sodium, potassium... 

Next, let the example of vanadium, which, in the as-reduced condition, may contain a variety of impurities (including aluminum, calcium, chromium, copper, iron, molybdenum, nickel, lead, titanium, and zinc) be considered. Vanadium melts at 1910 °C, and at this temperature it is considerably less volatile than many of the impurity metals present in it. The vapor pressure of pure vanadium at this temperature is 0.02 torr, whereas those of the impurity elements in their pure states are the following aluminum 22 torr calcium 1 atm, chromium 6 torr copper 23 torr iron 2 torr molybdenum 6 1CT6 torr nickel 1 torr lead 1 torr titanium 0.1 torr and zinc 1 atm. However, since most of these impurities form a dilute solution in vanadium, their actual partial pressures over vanadium are considerably lower than the values indicated. Taking this into account, the vaporization rate, mA, of an element A (the evaporating species) can be approximated by the following free evaporation equation (Langmuir equation) ... 

A detailed report on the structure of sulphamethoxypyridazine has been given recently [310]. Various complexes of sulphamethoxypyridazine have been prepared, including bismuth, cadmium, calcium, chromium, cobalt, copper, iron, nickel, silver and zinc complexes. Thus, for instance, Cu(II) and Ag(I) complexes have been found to be more potent against selected bacterial pathogens than (95, R1 = MeO R2 = H) [311]. 

The Soliditech reagent mix contains aluminum, barium, calcium, chromium, copper, lead, nickel, and sodium. The reagent mix may increase the concentrations of these metals in the final solidified product. The temperature of the treated waste should remain above freezing. The process is generally limited to wastes with pHs between 2 and 12. Wastes with pHs below 2 and above 12 require neutralization before treatment. If the treated material is not adequately mixed, unmixed clumps of waste material will appear in the solidified product. The long-term stability of the solidified product is unknown. 

The aubrites are the most reduced achondrites (Keil et al., 1989). Their silicates are essentially free of iron, and they contain minor metallic iron. A variety of unusual sulfides of calcium, chromium, manganese, titanium, and sodium - all usually lithophile elements -occur in aubrites. These unusual sulfides also characterize the highly reduced enstatite chondrites, which may have been precursors for these rocks. 

The concentrates obtained from ilmenite sand, being depleted in iron, are generally richer in TiOz than those from the massive deposits. Other elements in these concentrates include magnesium, manganese, and vanadium (present in the ilmenite) and aluminum, calcium, chromium, and silicon which originate from mineral intrusions. 

The calcium-calcium chromate thermal cell has been established for many years. In the LiCl-KCl eutectic, the reaction product of this cell is a mixed lithium-calcium-chromium oxide. However,. this system cannot provide as high a specific capacity or energy density as the lithium-based systems described above. Furthermore, it suffers from parasitic chemical reactions which are exothermic and often uncontrolled. 

PREDNISONE, CORTISONE ZINC, CALCIUM, CHROMIUM, MAGNESIUM, SELENIUM 1 plasma/body concentrations of these minerals Attributed to t loss and/or 1 absorption Be aware and monitor plasma concentrations of these minerals provide supplements... 

SYNS CALCIUM CHROMATE (VI) CALCIUM CHROME YELLOW CALCIUM CHROMIUM OXIDE (CaCt04) CALCIUM MONOCHROMATE CHROMIC ACID, CALCIUM SALT (1 1) C.I. 77223 C.I. PIGMENT YELLOW 33 D GELBIN RCRA WASTE NUMBER U032 YELLOW ULTRAMARINE... 

The major-element compositions of 200 chondritic IDPs were measured by EDS (Table 1 and Figure 12). All of the particles were identified as extraterrestrial because they have approximately chondritic compositions or consist predominantly of a single mineral grain like forsterite or pyrrhotite (commonly found within chondritic IDPs) 37% of the particles are CSIDPs, 45% are CP IDPs, and 18% IDPs composed predominantly of a single mineral. Table 1 summarizes the compositions of the IDPs. Within a factor of 2 the abundances of oxygen, magnesium, aluminum, sulfur, calcium, chromium, manganese, iron, and nickel are approximately chondritic. CP IDPs are a closer match to Cl carbonaceous chondrites than CS IDPs, and they are closer to Cl bulk than to Cl... 

Approximately fifteen minerals are considered nutrients calcium, chromium, cohalt, copper, iron, magnesium, manganese, molybdenum, nickel, phosphorus, selenium, silicon, tin, vanadium, and zinc) of these minerals, those in italics are essential to mammalian nutrition. Minerals, which are important for good nutrition, are supplied in an organism s diet. However, we have recently realized that the biological availability of the minerals from their food sources is also important in nutrition (J). Internal metabolism, distribution, and retention are less important factors in mineral nutrition. 

Metal ions of greatest interest in textiles are antimony, arsenic, calcium, chromium, cobalt, copper, iron, lead, magnesium, manganese, mercury, nickel, silver, sodium, tin, titanium and zinc. 

The oxidation of S02 can also take place on the surface of existing aerosol particles. According to the laboratory work of Urone et ai (1968) the rate of the S02 oxidation can be rapid in the presence of aerosol particles, even without illumination. In caseofFe203 particles the S02 loss in the laboratory chamber air is as much as 100 % hr-1, while high loss rates were found in the presence of aluminum, calcium, chromium and other metal oxides as well. It is questionable, however, whether the S02 loss is due to chemical conversion or to simple physical adsorption (Corn and Cheng, 1972). Furthermore, in U rone s experiments the mass concentration of aerosol particles was 100-200 times greater than that of S02 which is unrealistic under atmospheric conditions. Finally, the experimental results of... 

The ICP-AES as well as ICP-MS coupling technique give reliable analytical information at low detection levels. The ICP-AES technique was used for cadmium, copper, lead, and zinc assay in soil samples at ppm levels.106 The best reliability is assured by the laser-ICP-MS technique.107 It was successfully used for magnesium, aluminum, calcium, chromium, manganese, iron, cobalt, nickel, copper, zinc, strontium, cadmium, barium, thallium, lead, bismith, and uranium assay from soil samples, with a relative standard deviation less than 7%. For improving the reliability of the analytical information it is necessary to use an internal standard. It is not easy to use the laser-ICP-MS technique, but it gives the best results for metals assay in soil samples. 

Minerals and vitamins are usually found in BSG [27]. The mineral elements include aluminum, barium, calcium, chromium, cobalt, copper, iron, magnesium, manganese, phosphorus, potassium, selenium, silicon, sodium, strontium, sulfur, and zinc, typically all in concentrations lower than 0.5%, except for silicon that is the major mineral present. The vitamins include biotin, choline, folic acid, niacin, pantothenic acid, riboflavin, thiamine, and pyridoxine. Although, many of the vitamins can be destroyed during the hydrolysis... 

Oxides of metals such as aluminium, calcium, chromium, iron, lead, or vanadium may also serve as catalysts for the heterogeneous oxidation of sulphur dioxide. These oxides may also adsorb sulphur dioxide (4]. 

This category encompasses the various chemical substances manufactured in the production of ceramics. For purposes of this category, a ceramic is defined as a crystalline or partially crystalline, inorganic, non-metallic, usually opaque substance consisting principally of combinations of inorganic oxides of aluminum, calcium, chromium, iron, magnesium, silicon, titanium, or zirconium which conventionally is formed first... 

Synonyms Calcium chromate (IV) Calcium chrome yellow Calcium chromium oxide Calcium monochromate Chromic acid, calcium salt (1 1) Cl 77223 Pigment yellow 33 Yellow ultramarine Empirical CaCr04... 

Calcium chromate (IV) Calcium chrome yellow Calcium chromium oxide. See Calcium chromate... 

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