Reduced Phosphate, Powder

Soil-Organic stains food, mold and grass Surface-Cement, wood, paint, polymeric Application Methods-Brush Manufacture-Dry blend/Agglomerati on 

Metso Beads 2048 Sodium Sulfate PQ Epsom Salt 

Soil-Animal fat and grease, vegetable oil Surface-Aluminum and steel Appl i cati on Method-Immersi on/brush Manufacture-Dry blend/Agglomerat i on 

Heavy Duty Cleaners An Purpose-Food Process Plant 

EDTA (Ethylenediaminetetracetlc Acid) TKPP (Tetra Potassium Pyrophosphate) Pilot SXS-40 KOH, 45% 

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Laundry Detergent-Industrial Institutional (Reduced Phosphate, Powder ... 

When freshly mixed, the carboxyHc acid groups convert to carboxjiates, which seems to signify chemical adhesion mainly via the calcium of the hydroxyapatite phase of tooth stmcture (32,34—39). The adhesion to dentin is reduced because there is less mineral available in this substrate, but bonding can be enhanced by the use of minerali2ing solutions (35—38). Polycarboxylate cement also adheres to stainless steel and clean alloys based on multivalent metals, but not to dental porcelain, resin-based materials, or gold alloys (28,40). It has been shown that basic calcium phosphate powders, eg, tetracalcium phosphate [1306-01-0], Ca4(P0 20, can be substituted for 2inc oxide to form strong, hydrolytically stable cements from aqueous solution of polyacids (41,42). 

The sodium bicarbonate suppressant attains almost equivalence in performance with the monoammonium phosphate powder. Water has proven to be a very effective suppressant of dust, especially grain and fodder dusts. A suppressant is regarded as being very effective when an increase of the activation pressure of the explosion system leads to an increase as small as possible in the maximum reduced explosion overpressure P i,man (see Fig. 26-42). 

Both rock phosphate powder and acid are fed separately at controlled rates to the acid-resistant AR brick-lined mixer (reactor) with paddles made from special corrosion-resistant alloy. The reaction mass is cured for completion of reaction. Gases evolved from mixer contain fluorine compounds (due to the presence of Cap2 in rock phosphate). They are scmbbed, and the solution of H2S1F6 obtained is recycled to mixer to reduce the consumption of fresh sulphuric acid. It is advisable to select the raw rock phosphate with as little CaF2 impurities as possible (not more than 3.0-3.5 %) because the very objectionable pollutant HF is evolved during reaction with acid (see Fig. 7.3 Table 16.4). 

The use of chlorinated trisodium phosphate is declining. It has been largely replaced by chlorinated isocyanurates in powdered abrasive cleansers and automatic dishwash detergents to reduce cost, improve performance, or comply with restrictions on the use of phosphates. Some chlorinated trisodium phosphate is stiU used in commercial laundries and in disinfectant cleaners. 

Two methods are available for the preparation of the powder (Smith, 1969). In one, zinc oxide is ignited at 900 to 1000 °C for 12 to 24 hours until activity is reduced to the desired level. This oxide powder is yellow, presumably because zinc is in excess of that required for stoichiometry. Alternatively, a blend of zinc oxide and magnesium oxide in the ratio of 9 1 is heated for 8 to 12 hours to form a sintered mass. This mass is ground and reheated for another 8 to 12 hours. The powder is white. Altogether the powder is similar to that used in zinc phosphate cements. 

In common with other organic phosphates, parathion is readily absorbed following application to the skin. Dry formulation materially reduced the toxicity. These observations are not in agreement with the data of Lehman (9) so far as the toxic dose is concerned. Because parathion is almost insoluble in water, no comparison can be made between the aqueous solution and the dry powder. The dry formulation of parathion is less... 

The reduction was done essentially as described previously (Robins, 1976). After several washings with 0.9% (w/v) sodium chloride, 0.05 M sodium phosphate, pH 7.4, at 4°C, the stirred demineralized root powder was reduced with 0.71 g sodium borohydride, an estimated one-twentieth of the collagen mass. After one hour, the solution was acidified (pH < 4, pH paper) to inactivate remaining borohydride. Thereafter, the pH was readjusted to 7.5. The solution was centrifuged and the pellets were hydrolyzed by heating for 24 hours at 112°C in 6 M HCl under N2 in bottles with Teflon-sided screw caps. The dark hydrolyzate was paper-filtered, evaporated under reduced pressure at 50°C, and mixed with 5 ml 0.1 M acetic acid. The hydrolyzate was assayed for hydroxyproline. 

In an atmosphere of nitric oxide, thermal decomposition produces barium nitrite, Ba(N02)2. Reactions with soluble metal sulfates or sulfuric acid yield barium sulfate. Many insoluble barium salts, such as the carbonate, oxalate and phosphate of the metal, are precipitated by similar double decomposition reactions. Ba(N03)2 is an oxidizer and reacts vigorously with common reducing agents. The solid powder, when mixed with many other metals such as aluminum or zinc in their finely divided form, or combined with alloys such as... 

Research related to the use of vanadium phosphates or V2O5 as oxidants of gases such as CO and SO2 in commercial processes shows that solid vanadyl sulfate can serve as a gas-permeable solid-phase electrolyte [102]. Two reversible redox features are observable at slow scan rates (20-150 mV s ) by CV in a gas-tight two-electrode cell packed with powdered VOSO4 3H2O between a 10-mm carbon disk and a 3-mm glassy carbon electrode. The V(IV/V) couple was observed at 0.55 V versus C, and the V(IV/III) couple was observed at —0.97 V. Unlike in aqueous solution where vanadyl sulfate is reduced to [V(H20)6] ", the V=0 bond in the solid remains intact. The oxidation of CO(g) can be observed when it is introduced into this cell. 

Stipe powder of C. comatus (100 g) was extracted three times with 1 L 95% ethanol under reflux for 2 h to remove lipid, and the residue was extracted three times with 2 L distilled water for 2 h at 80 °C with intermediate centrifugation (2000 x g, 15 min). After concentrating the collected aqueous supernatants to 400 mL (reduced pressure at 40 °C), a precipitation was performed with 3 volumes of 95% ethanol. The precipitate was washed with ethanol and acetone, and then dried at 40 C, yielding crude polysaccharide material. Crude polysaccharide material was dissolved in 100 mL 0.2 M sodium phosphate buffer (pH 6.0), and after centrifugation the solution was applied to a DEAE-Sepharose CL-6B column. 

Pancreas powder, penicillin, pharmaceuticals, phosphate ores, plastics, polyvinylchloride (PVC), potash, potassium compounds, protein pigments, pyrites, pyrocatechol Raisin seeds, reduced ores, refractoiy materials, rice starch, rock salt... 

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