Реакция #734940

ord-2f2a4295204046eab8b0218b0dd7e228

Уравнение реакции

OC[C@H]1O[C@@](CO)(O[C@H]2O[C@H](CO)[C@@H](O)[C@H](O)[C@H]2O)[C@@H](O)[C@@H]1O
sucrose
O=[Si]([O-])[O-].[Na+].[Na+]
sodium metasilicate
→
OC[C@H]1O[C@@](CO)(O[C@H]2O[C@H](CO)[C@@H](O)[C@H](O)[C@H]2O)[C@@H](O)[C@@H]1O.O[Si](O)(O)O
silicic acid sucrose

Реактанты

OC[C@H]1O[C@@](CO)(O[C@H]2O[C@H](CO)[C@@H](O)[C@H](O)[C@H]2O)[C@@H](O)[C@@H]1O
sucrose
O=[Si]([O-])[O-].[Na+].[Na+]
sodium metasilicate
—
200C

Реагенты

Нет

Условия реакции

Подробные условия
See reaction.notes.procedure_details.

Обработка

  1. 1
    Другоеremoval of sodium

Методика

An aqueous solution containing sucrose and sodium metasilicate (sucrose content 20% and SiO2 cntent 5%) was passed through a column packed with a cation-exchange resin, Amberlite 200C (H+ form), to effect removal of sodium. There was obtained an aqueous silicic acid/sucrose solution (sucrose content 19% and SiO2 content 4.5%). Twenty (20) g of this solution was spray dried and then heated in an atmosphere of helium at 1440° C. for four hours. Consequently, there was obtained silicon carbide powder having a particle diameter of about 1μ. The crystalline phase was composed of 93% of 3C and 7% of 2H.

Источник

DOI: 10.6084/m9.figshare.5104873.v1Патент: US04410502uspto-grants-1983_10