Preparation and Characterization of Nanosized Hematite Colloids Using Green Vitriol as Ferrum Source

Table 1

Mean sizes of the nanosized 𝛼-Fe₂O₃ particles obtained from different Fe(OH)₃ concentrations.

Number	𝐶Fe(OH)3 (mol/L)	Mean size (nm)	𝑃𝑓^∗ (%)
1	0.05	51	1.2
2	0.1	63	4.2
3	0.2	82	10.2
4	0.3	117	54.2

∗Volume fraction of the particles greater than 100 nm.