31. Also, in 1846, two plants were built in south-west England to make blasting powder using this sodium nitrate . 32. Minera Yolanda plans to start producing sodium nitrate , iodine and potassium nitrate, Soquimich's three principal products, in September. 33. In that day, gunpowder made from sodium nitrate was easier to keep on dry land than at sea. 34. The salt ( sodium nitrate ) permits the ham to retain its original pink color, even when dried out. 35. Freezing, drying, and treating food with chemicals like sodium nitrate prevent the spores of botulism from growing and producing toxins. 36. In this way, the use of a sodium nitrate bath increases the potential for surface compression in the finished article. 37. The first commercial molten salt mixture was a common form of saltpeter, 60 % sodium nitrate and 40 % potassium nitrate. 38. The SUV was sitting in a warehouse surrounded by several bags of sodium nitrate , which can be used to make explosives. 39. Chile had been a major ( and almost unique ) producer of natural deposits such as sodium nitrate ( caliche ). 40. Celery salt is often used by food producers to prevent spoilage while avoiding listing sodium nitrate on the ingredients list directly.
