Читать книгу Henley's Formulas, Recipes and Processes (Applied Chemistry) - Various - Страница 229
Mannheim Gold Or Similor.
Оглавление—Mannheim gold is composed of copper, zinc, and tin, in proportions about as follows:
| I | II | |
|---|---|---|
| Copper | 83.7 | 89.8 |
| Zinc | 9.3 | 9.9 |
| Tin | 7.0 | 0.6 |
It has a fine yellow color, and was formerly much used in making buttons and pressed articles resembling gold. Later alloys, however, surpass it in color, and it has fallen somewhat into disuse. One variety of Mannheim gold, so called, contains 1.40 parts of brass (composition 3 Cu2 1 Zn) to 10 of copper and 0.1 of zinc.
