sulfuric acid T=50 - 65°C; 1 h;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1098214', constants.ctx, '0')">hydrogenchloride</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '3539763', constants.ctx, '0')">hydroxylamine hydrochloride</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '5136723', constants.ctx, '0')">sodium sulfate</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '3587155', constants.ctx, '0')">water</a> <br />2&nbsp;h;&nbsp;&nbsp;Heating / reflux;&nbsp;<br /> <br /> &nbsp;