sodium dichromate; sulfuric acid

1: Na2Cr2O7; aqueous H2SO4 2: FeSO4; aqueous NH3 View Scheme

<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, '1209228', constants.ctx, '0')">formaldehyd</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '506007', constants.ctx, '0')">acetic acid</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '8128175', constants.ctx, '0')">zinc(II) chloride</a> <br /> <br /> &nbsp;