By varying the proportions of copper and zinc, the properties of the brass can be changed, allowing hard and soft brasses. The density of brass is approximately .303 lb/cubic inch, 8.4 to 8.73 grams per cubic centimetre.
Both caffeinated and decaffeinated coffee might cause heartburn by encouraging acid production. Other caffeinated drinks, citrus fruit juices, tomato juice and carbonated beverages might trigger your heartburn. Citrus fruit juices include orange, grapefruit, lemon and pineapple. In some cases, these drinks might not cause symptoms because triggers depend on each person.
The first thing you'll want to do when you're awakened by heartburn pain is to stand up. This helps keep the acid at bay while you go and get a full glass of cool water. Drink the whole glass of water, and follow it with a mixture of 1 tablespoon of baking soda, and half a glass of water. Be careful though, if you have high blood pressure or are pregnant, this can cause water retention or increase your blood pressure. DON'T drink milk or suck on mints to relieve heartburn.