Preparation of acicular alpha-Fe.sub.2 O.sub.3

Details Preparation of acicular alpha-Fe.sub.2 O.sub.3 Preparation of acicular alpha-Fe.sub.2 O.sub.3

1987-03-11

1988-09-27

Cooper, Jack

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

C01G 4906

Patent

active

047740728

ABSTRACT:
Acicular .alpha.-Fe.sub.2 O.sub.3 is prepared from iron(III) salts by heating an alkaline aqueous suspension of iron(III) hydroxide in the presence of one or more organic substances which form complexes with iron(III) ions to a temperature of 100.degree. C. or less.

REFERENCES:
patent: 4202871 (1980-05-01), Matsumoto et al.
patent: 4339425 (1982-07-01), Tokvoka
patent: 4379183 (1983-04-01), Araki et al.
patent: 4414196 (1983-11-01), Matsumoto et al.
patent: 4597958 (1986-07-01), Takagi et al.
U. Schwertmann et al. Trans. Intern. Congr. Soil Sci., 9th, Adelaide 68, pp. 645-655.

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