Potassium nitrate , other chemicals , intended to be sold in small quantities . Potassium nitrate used in gunpowder but also has many legitimate uses . It is a very common ingredient of baking soda and can be found as an additive for food products such as bread or pasta. It can also be used to cure meats . Area round his Staten Island home was cordoned off .
Potassium nitrate , other chemicals , intended to be sold in small quantities . Potassium nitrate used in gunpowder but also has many legitimate uses . It is a very common ingredient of baking soda and can be found as an additive for food products such as bread or pasta. Area round his Staten Island home was cordoned off .