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BAYERITE

BAYERITE Struktur
20257-20-9
CAS-Nr.
20257-20-9
Englisch Name:
BAYERITE
Synonyma:
BAYERITE;Bayerite (Al(OH)3);Bayerite (Al(OH)3) (9CI)
CBNumber:
CB91414898
Summenformel:
AlH3O3
Molgewicht:
78
MOL-Datei:
20257-20-9.mol

BAYERITE Eigenschaften

Dichte
2.53 [KIR78]
Schmelzpunkt:
120 °C (decomp)

Sicherheit

BAYERITE Chemische Eigenschaften,Einsatz,Produktion Methoden

Chemische Eigenschaften

monoclinic, a=0.506 nm, b=0.867 nm, c=0.471 nm; used to make η-alumina catalyst [KIR78]

Physikalische Eigenschaften

Habit: fine fibers.
Color: colorless.
Luster: silky.
Diaphaneity: translucent to transparent.
Streak: white.
Occurrence: precipitates of aluminum hydroxide gels onto carbonates at pH > 5.8.

synthetische

Aluminum hydroxide (C.P. or better) is dissolved with moderate heating in sodium hydroxide solution (saturated in the cold) until saturation is attained. The solution is diluted with water to a density of 1.15 and suction-filtered through hard filter paper. Carbon dioxide is then bubbled through the filtrate for three days. The mother liquor is decanted from the resulting precipitate; the subsequent treatment is identical to that described for hydrargillite (I). The thoroughly washed and dried residue is pure bayerite.

BAYERITE Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


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  • BAYERITE
  • Bayerite (Al(OH)3) (9CI)
  • Bayerite (Al(OH)3)
  • 20257-20-9
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