化学配方数据库
| 配方类型： | METALS AND THEIR TREATMENT |
| 配方说明： | Blackening Titanium (Japanese Patent 6716 (1956)) |
| 配方组成： | Water/1 l. Potassium Permanganate/20 g. Sulfuric Acid/50 cc. Copper Sulfate/10 g. Manganese Dioxide/10 g. |
| 配制方法： | Treat at boiling point of solution for 20 to 30 minutes. |
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