Nickel and alloys

In general, just about any material that can be worked into the impeller design is available, including steel, stainless alloys, copper alloys, nickel and alloys, hard rubber, and lead, rubber and plastic coatings on impellers and shafts. 

Small metal particles can also be obtained by vacuum evaporation in low pressure inert gases (16). Magnetic particles of metals such as iron, cobalt, nickel, and alloys of these metals can be prepared by this method. Though the amounts of particles obtainable by this method are limited, the particles are clean as compared with particles precipitated from solutions. They are mainly used for studies of physical properties of fine particles. 

The sudden temperature jump for the platinum wire was puzzling, and so Nukiyama tried wires of nickel and alloys having melting points lower than platinum has. When these wires experienced the temperature jump they melted. This was the phenomenon now known as bumovt. 

CARBON TETRACHLORIDE. [CAS 56-23-5], CCL, formula weight 82.82. heavy, colorless, nonflammable, noncombustible liquid, nip - 23°C. bp 76.75 C. sp gr 1.588 <2S C/25lC). vapor density 5.32 (air = 1.00). critical temperature 283.2cC. critical pressure 661 atmospheres, solubility 0.08 g in 100 g H 0. odor threshold 80 ppm. Dry carbon tetrachloride is noncorrosive to common metals except aluminum. When wet. CCL hydrolyzes and is corrosive to iron, copper, nickel, and alloys containing those elements About 9091 of all CCL manufactured goes into the production of chlorofluorocarbons ... 

Net realizable value, definition of, 333 Nickel and alloys, 431, 438, 440-442 Nitric acid, flow diagram for production of,... 

Alkaline electrolytes offer further advantages over acidic electrolytes. Oxygen reduction is considerably faster in alkaline electrolytes, which implies that the working potential of the oxygen electrode is more positive, and a larger cell voltage can be realized. Also, apart from the advantages in catalyst selection, less severe corrosion conditions allow nickel and alloys of iron to be used as structural materials in AFCs. 

Table 6. Corrosion parameters of nickel and alloy NiP in 0.5M NaQ solution.

Nickel and alloys - caustic, reducing, and non-oxidizing environments... 

---