Question/Answer
Is this the same product as pyridine(60%)-Barbituric Acid (6%) in 6% HCI? If so what is the shelf life?
The pyridine content of this reagent is 30%, the barbituric acid and HCl are both 6%. It matches the reagent given for the determination of cyanide as found in SM4500-CN E. It has a shelf life of 2 months.