The boiling temperature of nitrogen is â195.8 Â°C (â320.4 Â°F), about 13 Â°C (â23 Â°F) below that of oxygen, which is therefore left behind. Nitrogen can also be produced on a large scale by burning carbon or hydrocarbons in air and separating the resulting carbon dioxide and water from the residual nitrogen.
Acidic foods like citrus fruits can stimulate acid production and increase heartburn. Avoid oranges, grapefruit, lemons and their juice. Like citrus fruits, tomatoes and products made from tomatoes (tomato sauce and paste, tomato juice) can stimulate the stomach to produce more acid.
Bananas. This naturally low-acid fruit is a smart food to reach for if youâre feeling the symptoms of heartburn. âA nice mushy banana will help relieve discomfort because it will stick to the irritated esophageal lining,â says Gerard E. Mullin, MD, a digestive health expert and author of The Gut Balance Revolution.