Abstract: A method is disclosed for obtaining dinitrogen monoxide by stepwise reduction of nitrates and/or nitrites from substances containing nitrate and/or nitrite, the reduction reaction being interrupted or limited after the step in which the dinitrogen monoxide is formed and the dinitrogen monoxide produced in the reduction reaction being separated, captured and/or collected.

Abstract: A method is disclosed for obtaining dinitrogen monoxide by stepwise reduction of nitrates and/or nitrites from substances containing nitrate and/or nitrite, the reduction reaction being interrupted or limited after the step in which the dinitrogen monoxide is formed and the dinitrogen monoxide produced in the reduction reaction being separated, captured and/or collected.

Abstract: In the preparation of equilibration products of organosiloxanes by contacting at least one organosiloxane with a cation exchange resin, the improvement which comprises employing as said resin a polymer having side chains carrying sulphonyl groups, the carbon atoms carrying the sulphonyl groups also carrying at least one fluorine atom.

Abstract: A process for converting the low-boiling constituents formed in the preparation of methylchlorosilane to the Muller-Rochow process and which consist essentially of tetramethylsilane, dimethylmonochlorosilane and 2-methylbut-2-ene into a product mixture consisting essentially of trimethylchlorosilane, dimethylchlorosilane and C.sub.2 -.sub.20 alkyldimethylchlorosilanes or C.sub.6-10 -aryldimethylchlorosilanes, comprising contacting the low-boiling product mixture with AlCl.sub.3, AlOCl and/or AlBr.sub.3, together with hydrogen chloride, in the liquid phase at about 40.degree. to +25.degree. C. The mixture prior to conversion may be contacted with HCl and either ZnCl.sub.2 or active charcoal and/or an olefin may be added thereto.

Abstract: In the addition of an unsaturated compound into a silane of the formulaR.sub.1 R.sub.2 SiXHwhereinX is Cl or Br, andR.sub.1 and R.sub.2 each independently is an alkyl, aryl or aralkyl radical with up to 20 C atoms, or an alkenyl or alkinyl radical with up to 12 C atoms,the improvement which comprises effecting the addition reaction in the presence of at least one of aluminum chloride, aluminum bromide, aluminum oxychloride and aluminum oxybromide.

Abstract: A process for the preparation of a perfluoroalkanesulphonic acid ester of the formulaC.sub.n F.sub.2n+1 SO.sub.3 Si R.sup.1 R.sup.2 R.sup.3comprising reacting a silane of the formulaR.sup.1 R.sup.2 R.sup.3 R.sup.4 Siwith a perfluoroalkanesulphonic acid of the formulaC.sub.n F.sub.2n+1 SO.sub.3 HwhereinR.sup.1, R.sup.2 and R.sup.3 each independently is alkyl with 1 to 6 carbon atoms,R.sup.4 is methyl, andn is from 1 to 12.Compounds wherein the total number of carbon atoms in Cn, R.sup.1, R.sup.2 and R.sup.3 is at least 6 are new and especially useful as silylating agents in organic cyntheses.