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.
Effective Drinks. Decaffeinated, non-mint herbal tea; non-citrus juices such as apple juice; and plenty of water usually work effectively in a diet to protect you from heartburn. Penn Medicine advises drinking only small amounts of liquid during mealtime to avoid overworking the stomach.
1 Check with your health care team before increasing the amount of lemon in your diet and attempting to use it to improve health. Ask for advice on how to incorporate it and how much. You do not need to drink high amounts of lemon juice to gain benefits.  Lemon can cause heartburn.