配方类型:

COSMETICS AND DRUGS

配方说明:

White's 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.