"Sodium nitrate" is a type of salt that contains sodium and nitrogen. It is commonly used as a food preservative to prevent the growth of bacteria and to add flavor to processed meats. Full definition
Processed Meats and meat products preserved with synthetic or artificial preservatives like sodium nitrates or nitrites and were factory farmed. (ultrawellnesscenter.com)
Most hot dogs contain sodium nitrates or nitrites, which aren't good for your little one. (howtoadult.com)
Sodium is also hidden as a part of other chemical additives, such as sodium nitrate, sodium benzoate saccharin, and monosodium glutamate. (wholesomebabyfood.momtastic.com)