Calcium acetate nitrate

A more constrained opportunity for nitrate bioremediation arose at the US-DoE Weldon Spring Site near St. Louis, Missouri. This site had been a uranium and thorium processing faciUty, and treatment of the metal had involved nitric acid. The wastestream, known as raffinate, was discharged to surface inpoundments and neutralized with lime to precipitate the metals. Two pits had nitrate levels that requited treatment before discharge, but heavy rains in 1993 threatened to cause the pits to overflow. Bioremediation by the addition of calcium acetate as a carbon source successfully treated more than 19 million liters of water at a reasonable cost (75). 

Trivalent chromium compounds, except for acetate, nitrate, and chromium(III) chloride-hexahydrate salts, are generally insoluble in water. Some hexavalent compounds, such as chromium trioxide (or chromic acid) and the ammonium and alkali metal (e.g., sodium, potassium) salts of chromic acid are readily soluble in water. The alkaline metal (e.g., calcium, strontium) salts of chromic acid are less soluble in water. The zinc and lead salts of chromic acid are practically insoluble in cold water. Chromium(VI) compounds are reduced to chromium(III) in the presence of oxidizable organic matter. However, in natural waters where there is a low concentration of reducing materials, chromium(VI) compounds are more stable (EPA 1984a). For more information on the physical and chemical properties of chromium, see Chapter 3. 

Salts Compounds formed by the union of acids and bases, by the action of alkalies upon metals, or by the direct union of elements. The term is often incorporated in the common name of salts used as pharmaceuticals bitter salts, epsom salt, or Seidlitz salt (magnesium sulfate), preparing salt (sodium stannate), Preston s salts (ammonium chloride), Rochelle salt or Seignette s salt (potassium and ammonium tartrate), salt of Mars (ferrous sulfate), salt of Saturn (lead acetate), salt of tartar (potassium carbonate), salt of tin (stannous chloride), salt of wisdom (mercury bichloride and ammonium chloride), sore-throat salt (fused potassium nitrate), vinegar salts (calcium acetate), and vomiting salt (zinc sulfate). The term is also applied to some acids, such as salt of lemon or sour salt (citric acid), salt of sorrel (oxalic acid), and spirit of salt (muriatic acid). ... 

Lanthanum-doped hydroxyapatite were deposited by PEO on ultrafine-grained (200-400nm) pure titanium from an electrolytic solution containing 0.2 moll-1 calcium acetate, 0.02 mol l-1 [3-glycerol phosphate disodium salt pentahydrate and lanthanum nitrate with different concentrations (0.89%, 1.3% and 1.79%) (Deng... 

Precipitation from solution is the most common synthesis route and involves simultaneous addition of a calcium salt and a phosphate compound to water, or drop-wise addition of the phosphate into an aqueous solution of the calcium salt. Examples of calcium salts include calcium nitrate, calcium hydroxide, calcium chloride, or calcium acetate. The salts are reacted with a hydrogen phosphate or the phosphate ions are... 

Ans. (a) Potassium sulfate, ib) manganese hydroxide, (c) iron(II) nitrate, id) potassium dihydrogen phosphate, ie) calcium acetate, (/) sodium carbonate... 

Bromic acid Bromine, anhydrous Butadiene Butane Butyl acetate Butyl chloride Butyl ether Butyl lactate Butyl mercaptan Butyl chloride Cadmium chloride Cadmium nitrate Cadmium sulfate Cadmium sulfide Calcium acetate Calcium arsenate Calcium bicarbonate Calcium bisulfide Calcium hydrosulfide Calcium carbide Calcium carbonate Calcium chlorate Calcium chloride Calcium chromate Calcium fluoride Calcium hydroxide Calcium h) pochlorite Calcium nitrate Calcium oxide Calcium peroxide Calcium phosphate Calcium stearate Calcium sulfate Calcium sulfide Calcium sulfite Cane sugar liquors Capric acid Carbamate Carbon bisulfide Carbon dioxide Carbon disulfide Carbon fluorides Carbon monoxide Caustic lime... 

Cellulose acetate was stable, not readily flammable, and water repellent, so it was a suitable substitute for cellulose nitrate. Further, in its soluble form, cellulose acetate could be applied by simply painting the fabric as had been done with cellulose nitrate. However, cellulose acetate manufacture would require large quantities of acetic anhydride, and there was no good way to produce acetic anhydride other than the existing neutralization of calcium acetate with sulfuric acid. What ensued would be one of those creative bursts that occur sporadically in the chemical industry. 

FIGURE 1.8 Metal-ion transfer via cation switching ion/ion reactions of Trp-11 neurotensin with (a) calcium acetate anions (b) silver nitrate anions and (c) nickel acetate anions. (Reproduced from Newton, K.A. McLuckey, S.A., J. Am. Chem. Soc. 2003, 125, 12404-12405. With permission from American Chemical Society.)... 

Lime pyrolignite. See Calcium acetate Lime saltpeter. See Calcium nitrate Lime, slaked. See Calcium hydroxide Limestone. See Calcium carbonate Lime sulfur. See Calcium polysulfide Lime-tree extract. See Linden (Tilia americana) extract Linden (Tilia cordata) extract Linden (Tilia vulgaris) extract Lime water. See Calcium hydroxide Limnanthes alba. See Meadowfoam (Limnanthes alba) seed oil (-)-Limonene. See l-Limonene (+)-Limonene. See d-Limonene d-Limonene... 

Ammonium chloride Disodium arsenate Sodium arsenate mordant, printing fabrics Nickel sulfate Nickel sulfate hexahydrate mordant, printing textiles Calcium acetate Copper chloride (ic) Lead nitrate Tannic acid mordant, textiles... 

The potential of advanced synthesis techniques to develop CaO-based sorbents stabilized by a support material has been demonstrated recently by Broda et al. [74] who synthesized AhOs-stabilized CO2 sorbents by employing a sol-gel technique. Here, aluminium iso-propoxide was added to reverse osmosis water (15 Mf2 cm) and allowed to hydrolyse for 30 min at 75 °C. Subsequently, a calcium precursor, i.e. calcium acetate hydrate (Ca(CH300)2-H20), calcium nitrate tetrahydrate (Ca(N03)2-4H20) or calcium acetylacetonate (Ca(CsH702)), was dissolved in water and, together with an acid (either acetic or nitric acid), added... 

Fig. 6.29 High-resolution SEM images of solgel-derived CO2 sorbents synthesized using different calcium precursors a calcium acetylacetonate (CafCsHTOala). b calcium acetate (Ca(CH300)2) and c calcium nitrate (Ca(N03)2). Reproduced from Ref [74] by permission of...

Slosarczyk et al. have used a wet method to obtain carbonated HAp powders [56, 57]. Calcium oxide (CaO), calcium nitrate, calcium tetrahydrate [Ca(N03)2-4H20] or calcium acetate [Ca(CH3COO)2-H20] were used as the calcium source. As the phosphorous source, phosphoric acid (H3PO4) or di-ammonium phosphate [(NH4)2HP04] were used. The molar ratio of Ca P was 1.67. Ammonium bicarbonate (NH4HCO3) or sodium bicarbonate (NaHCOs) were used as reactants to introduce groups. Biological apatites in natural bone, dentin, and enamel... 

Predict whether or not a solid is formed when we mix the following identify any solid product by name and identify the reaction type (a) copper(ll) nitrate solution and magnesium metal (b) barium nitrate and sodium phosphate solutions (c) calcium acetate solution and aluminum metal (d) silver nitrate and sodium iodide solutions. 

Ammonium nitrate Ammonium phosphate Ammonium sulfate Ammonium sulfide Barium carbonate Barium chloride Barium hydroxide Barium nitrate Barium sulfate Barium sulfide Battery acid Cadmium chloride Cadmium cyanide Cadmium sulfate Calcium acetate Calcium bromide Calcium carbonate Calcium chloride Calcium fluoride... 

Many substances are known to act as accelerators for concrete. These include soluble inorganic chlorides, bromides, fluorides, carbonates, thiocyanates, nitrites, nitrates, thiosulfates, silicates, aliuninates, alkali hydroxides, and soluble organic compounds such as triethanolamine, calcium formate, calcium acetate, calcium propionate, and calcium butyrate. Some of them are used in combination with water reducers. Quick setting admixture s used in shotcrete applications and which promote setting in a few minutes may contain sodium silicate, sodium aluminate, aluminum chloride, sodium fluoride, strong alkalis, and calcium chloride. Others are solid admixtures such as calcium aluminate, seeds of finely divided Portland cement, silicate minerals, finely divided magnesium carbonate, and calcium carbonate. Of these, calcium chloride has been the most widely used because of its ready availability, low cost, predictable performance characteristics, and successful application over several decades.In some countries the use of calcium chloride is prohibited, in some others, such as Canada and the USA, the use of calcium chloride is permitted provided certain precautions are taken. Attempts have continued to find an effective alternative to calcium chloride because of some of the problems associated with its use. 

Soap solution 10.0 g calcium acetate 3.0 g magnesium nitrate 1.0 LDI water... 

Bromobenzaldehyde has been prepared by the oxidation of -bromotoluene with chromyl chloride/ by saponification of the acetal from />-bromophenylmagnesium bromide and orthoformic ester/ by the oxidation of ethyl -bromobenzyl ether with nitric acid/ by the oxidation of /j-bromobenzyl bromide with lead nitrate/ and by the hydrolysis of i-bromobenzal bromide in the presence of calcium carbonate. ... 

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