Salt, drying

As the reaction continues over several days, larger particles develop, which are deeper and redder. The reaction is stopped at the desired hue and the precipitate is washed free of soluble salts, dried carefully, ground, and bagged. 

Salt that is substantially free of sulfate and other impurities is the cell feed. This grade may be purchased from commercial salt suppHers or made on site by purification of cmde sea or rock salt. Dried calcium chloride or cell bath from dismanded cells is added to the bath periodically as needed to replenish calcium coproduced with the sodium. The heat required to maintain the bath ia the molten condition is suppHed by the electrolysis current. Other electrolyte compositions have been proposed ia which part or all of the calcium chloride is replaced by other salts (61—64). Such baths offer improved current efficiencies and production of cmde sodium containing relatively Htde calcium. 

Higher ethyl chloride efficiency is claimed for a process utilising a hydrocarbon diluent coupled with stepwise addition of sodium hydroxide (80). Product work-up includes distillation to remove residual unreacted ethyl chloride, added diluent, methanol, and diethyl ether neutralization of excess sodium hydroxide washing in water to remove salts drying and grinding. 

Acetyl peroxides Hydrogen peroxide (< 35% water) Picric acid and Cu. Pb and Zn salts, (dry)... 

The powdered salt, dried on tlie wtvtt-r-bath, is introduced in a long layer into a sloping vvido tiihe,... 

K - Salt drying, 317 hydrolysis, 317 melting, 201 precipitation, 316 properties, 319 reduction, 320-331... 

Water and particulates are the source of fuel quality problems such as filter plugging, corrosion, and system component fouling. Water can be removed through salt drying, coalescence, filtration, and good housekeeping. 

I. Galactose-1-phosphate, 28.8 mM galactose-1-phosphate dipotassium salt (FW variable, calculate the concentration for each batch). Dissolve in H20. 14C-Galactose-l-phosphate 14C-galactose-l-phosphate disodium salt. Dry 20 pCi of the solution under nitrogen and dissolve in 1 ml H20. 

The sodium salt dried in a vacuum oven is anhydrous, while that dried in a vacuum desiccator was found to contain 15.6% water. 

Amm acetate soln and add sufficient Na bichromate soln to ppt all lead as chromate. Test for the completion of destruction by transferring a portion of slurry to a filter paper and treating the filtrate with a few drops of Na bichromate soln. Confirm the absence of LA by washing.with distd w,the residue on filter,free of so azide salts, drying it,and subjecting a 20 mg portion to the impact test, using 2 kg wt. The material should not detonate... 

I. Flooding of the soot with the help of wetting agents by aqueous or organic solvents containing Pt salts, drying of the flooded material, and reduction of the salts deposited within the soot particles at low temperatures by hydrogen... 

In certain situations, air knives have proved effective in blowing droplets off the workpieces and back into the baths (AESF 1989). Care must be taken in designing the system that droplets land in the bath, and not on the floor. One wire plating operation that installed air knives at first experienced problems with zinc salts drying and remaining on the wire, but corrected this problem by humidifying the air streams (AESF 1989). 

If the starting material is cadmium oxide or cadmium carbonate, it is mixed with sulfur and calcined at approx. 600 °C. After calcination, the pigment product is washed with dilute mineral acid to remove any remaining soluble salts, dried, and ground. 

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