More on spirits of hartshorn from Fact Monster:

• ammonia - ammonia ammonia, chemical compound, NH3, colorless gas that is about one half as dense as air at ...
• spirits of hartshorn - hartshorn, spirits of: hartshorn, spirits of: see ammonia.
• Encyclopedia: Compounds and Elements - Encyclopeadia articles concerning Compounds and Elements.

See more Encyclopedia articles on: Compounds and Elements