T 1780 (OTTO) Tin fluoborate 50% Cas 13814-97-6 - used in electroplating. T 1780 (OTTO) Tin fluoborate 50% Cas 13814-97-6 - used for plating bath tinned copper, tin and tin alloy. T 1780 (OTTO) Tin fluoborate 50% Cas 13814-97-6 - used as a petrochemical additive.