B-Alumina

A—Alumina made from aluminum isopropoxide and calcined at 700° for 4 hours. B—Alumina A impregnated with sodium carbonate contained 1% Na ". 

Danks, T.N. and Desai, B., Alumina-supported formate for the liydrogenation of alkenes, Green Chem., 2002, 4, 179-180. 

Fig. 1. A, 5-1. three-necked fla.sk with electric heading mantle B, alumina column 45 cm. X 5.8 cm. (Merck basic alumina) C, polyethylene tubing Z>, condenser (see Note 11).

Liquid-liquid adsorption chromatography (adsorption column) a Flurosil b Alumina c Silica gel d Nuchar carbon Fats, phospholipids, pigments, polar impurities General... 

SiC nanocomposite to abrasion with 45 pm diamond paste [9] (a) alumina, grain size 2.6 pm (b) alumina-11 vol% SiC, alumina grain size 2.6 pm. 

Fig. 2. Equilibrium sorption of water vapor from atmospheric air at 25° C on (A) alumina (granular) (B) alumina (spherical) (C) silica gel (D) 5A Zeolite and (E) activated carbon. The vapor pressure at 100% R.H. is 23.6 Torr (Yang, 1997).

The most stable form of the oxide A1203 is a-alumina with the comndum stmcture where Al3+ ions occupy two-thirds of the octahedral holes in a hexagonal close-packed oxide lattice. Another form g-A1203 has a defect spinel structure. So-called b-alumina is... 

FIGURE 7.10 Surface concentrations and their intensity distributions for (A) the acidic and (B) the basic sites of adsorbents used in frying oil. A, activated carbon B, alumina (basic) C, alumina (neutral) D, alumina (acidic) E, bleaching earth F, diatomaceous earth G, silica and H, magnesium silicate. 

Figure 5.12 Identification of the chemical state of nickel involved from the poisoning of two model catalysts based on (A) zeolite with a high Si/AI ratio and (B) alumina.

Figure 1. Zeta potentials of (a) fumed and colloidal silica and (b) alumina, ceria and MnO particles as a function of solution pH.

Figure 3. DLVO total interaction energy between TEOS surface and (a) colloidal silica and (b) alumina particles at pH 11.

FIGURE 8.6 Operating details of a B-alumina ceramic cell for the production of chlorine, hydrogen, and nearly anhydrous sodium hydroxide. The B-alumina ceramic divider serves an ion-selective membrane function to the sodium chloride/zinc chloride analyte melt. 

Fig. 6 Isosteric heat of pure SF on various absorbents (A) zeolites, (B) alumina, and (C) activated carbons.

Fig. 5 a) Silicon carbide heat element for hucto system devices b) Alumina hollow fiber for micro systan devices... 

R.D. ARMSTRONG, W.l. ARCITER, The double layer capacity of the Au/Na-b-alumina interface-variation with temperature , J. Electroanal. Chem., 87, 221-224, 1978. 

Figure 44 Static permittivity vs. volume fraction particles in aqueous suspensions (a) silica particles, (b) alumina particles. (From Ref. 181.)...

Figure 45 Static permittivity of particle suspensions vs. time, recorded during sedimentation. Measurements are performed in the bottom of the sedimentation cell, and at different pH conditions, (a) Alumina particles (b) alumina particles coated with EHEC. (From Ref 182.)...

FIGURE 4-1. X-ray diffraction patterns of (a) synthetic boron-containing saponite (0) (b) alumina-pillared synthetic boron-containing saponite (0) (c) synthetic boron-containing saponite (3.0) and (d) alumina-pillared synthetic boron-containing saponite (3.0). 

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