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.
* Peptic ulcers. * Smoking cigarettes. * Drinking carbonated beverages. * Consuming fatty or spicy food, citrus fruits, tomato products, onions and chocolate. * Gastritis. * Taking medications including ibuprofen, aspirin, and certain drugs used to treat hypertension.
To curb heartburn, build your meals around naturally low-acid foods like: 1  Melons and bananas. 2  While most fruits have a high acid content, these don't. 3  Bananas are always handy as a snack food. 4  All sorts of melons are good, like watermelon, cantaloupe, and honeydew. 5  Oatmeal. 6  It's a great way to start your day.