1,3-Bis(boryloxy)tetraalkyldistannoxanes, , R = Me, Bu; G = CMe 2CH 2CHMe—, —CMe 2 —CMe 2 — and —CHMe—CH 2 — have been prepared from dialkyltin oxide and pyroborate, or directly from dialkyltin oxide, boric acid and glycol. A dimeric structure for these compounds is pr...
Determination of iron in layered crystal sodium disilicate and sodium silicate by flame atomic absorption spectrometry with boric acid as a matrix modifier[J]. Chinese Chemical Letters, 2006, 17(6): 809-812.WANG Zhihua, CAI Min, WANG Shujun. Determination of iron in layered crystal sodium ...
Process for the continuous recovery of boric acid catalyst from the aq. phase after hydrolysis of the reaction mixture contg. cyclohexanol and cyclohexanol and cyclohexanone from the oxidn. of cyclohexane with air. Part of the stream of circulating hydrolysis water is freed from organic impurities ...
After use, the catalyst is reacted with lime, calcium oxide or calcium hydroxide, deactivated and then separated as a filter cake from the reaction mixture. Useful products are extracted from the filter cake. The essential reaction products are calcium fluoride and boric acid which can be ...
The process comprises the steps of: (a) combining a boric acid ester, B(OR)<Sub>3 </Sub>and sodium aluminum hydride to produce sodium borohydride and Al(OR)<Sub>3</Sub>; and (b) combining Al(OR)<Sub>3 </Sub>and sulfuric acid to produce alum and ROH....
Six different boric acid (H3BO3) doses (12.4 mg L-1, 18.6 mg L-1, 24.8 mg L-1, 31 mg L-1, 37.2 mg L-1, 43.4 mg L-1 ) was added to the Murashige and Skoog (MS) medium and the development of the plants was compared with the control group. Only standard...
All the compounds, containing more than 1 phenyl group (tetraphenylboron compounds, triphenylboron, diphenylboric acid) react with mercuric ions in two distinct steps. In the first step phenylboric acid and diphenylmercury are formed, whereas in the later course of the titration both these ...