Effect of silica on the crystallization of sodium perborate tetrahydrate

Yuksel G., Sayan P., Titiz S., Bulutcu A.

JOURNAL OF CRYSTAL GROWTH, vol.160, pp.370-374, 1996 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 160
  • Publication Date: 1996
  • Doi Number: 10.1016/0022-0248(95)00568-4
  • Title of Journal : JOURNAL OF CRYSTAL GROWTH
  • Page Numbers: pp.370-374


Effects of SiO2 additive on sodium perborate tetrahydrate crystallization (via chemical reaction of NaBO2 and H2O2) has been studied in a MSMPR-type reaction crystallizer. CSD and microscopic observations are used to evaluate the secondary nucleation behaviour. Secondary nucleation rate decreases in case of SiO2 addition of up to 200 ppm. Higher SiO2 content results in higher primary nucleation rates. Abrasion resistance increases with the amount of SiO2 additive.