Ammoniacum

Ammoniacum
Names
Other names
Ammoniacum gummi; ammoniacum resin; gum ammoniac
Identifiers
UNII
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Ammoniacum or gum ammoniac is a gum-resin exuded from the several perennial herbs in the genus Ferula of the umbel family (Apiaceae). There are three types of ammoniacum: the gums ammoniac of Cyrenaica, of Persia (the commercial one today), and of Morocco.