发明授权
US4774072A Preparation of acicular alpha-Fe.sub.2 O.sub.3 失效
针状α-Fe2O3的制备

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