Figure 6
From: One-step synthesis of short columnar α-calcium sulfate hemihydrate from titanium white waste acid
(Left): SEM images of α-HH crystals prepared under different sodium citrate concentrations, (a) 0; (b) 0.85 × 10−2 mol/L; (c) 1.70 × 10−2 mol/L; (d) 2.55 × 10−2 mol/L; (e) 3.40 × 10−2 mol/L; (f) 4.25 × 10−2 mol/L. (Right): Average length, diameters, and aspect ratio of the α-HH.
