化学配方数据库
| 配方类型： | COSMETICS AND DRUGS |
| 配方说明： | Whites Crude Coal Tar Ointment |
| 配方组成： | Zinc oxide/5 To make/100 Corn starch/45 Crude coal tar/5 Petrolatum/45 |
| 配制方法： | Mix the crude coal tar and zinc oxide and allow to stand for at least 24 hr. Mix the corn starch and petrolatum, then mix in the crude tar---oxide combination. Mill until smooth. |
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