Glass of antimony, ''vitrum antimonii'', is a yellow to red, translucent
glass
Glass is a non-crystalline, often transparent, amorphous solid that has widespread practical, technological, and decorative use in, for example, window panes, tableware, and optics. Glass is most often formed by rapid cooling ( quenching ...
created from a preparation of antimony, though historically used as an
emetic
Vomiting (also known as emesis and throwing up) is the involuntary, forceful expulsion of the contents of one's stomach through the mouth and sometimes the nose.
Vomiting can be the result of ailments like food poisoning, gastroenteritis ...
, the glass was a subject of much interest from alchemists due to its unusual properties. It was created using crude
antimony
Antimony is a chemical element with the symbol Sb (from la, stibium) and atomic number 51. A lustrous gray metalloid, it is found in nature mainly as the sulfide mineral stibnite (Sb2S3). Antimony compounds have been known since ancient t ...
, ground and calcined by a vehement fire, in an earthen
crucible
A crucible is a ceramic or metal container in which metals or other substances may be melted or subjected to very high temperatures. While crucibles were historically usually made from clay, they can be made from any material that withstands te ...
, until it no longer fumed, indicating that its
sulfur was evaporated. The remaining substance (
antimony trioxide) was then
vitrified
Vitrification (from Latin language, Latin ''vitreum'', "glass" via French language, French ''vitrifier'') is the full or partial transformation of a substance into a glass, that is to say, a non-Crystallinity, crystalline amorphous solid. Glasses ...
in a wind
furnace
A furnace is a structure in which heat is produced with the help of combustion.
Furnace may also refer to:
Appliances Buildings
* Furnace (central heating): a furnace , or a heater or boiler , used to generate heat for buildings
* Boiler, used t ...
, and stirred with an iron rod, upon which it became translucent and displayed a ruddy and shining yellow-red color.
It has been considered the strongest emetic of any preparation of antimony. Yet, if dissolved in
spirit of urine, it ceased to be either emetic or
cathartic
In medicine, a cathartic is a substance that ''accelerates'' defecation. This is similar to a laxative, which is a substance that ''eases'' defecation, usually by softening feces. It is possible for a substance to be both a laxative and a catha ...
.
See also
*
Antimonial
Antimonials, in pre-modern medicine, were remedies principally containing antimony, used chiefly for emetic purposes. They might also have qualified for cathartic, diaphoretic, or simply alternative uses. Such treatments were considered unparall ...
*
Antimonial cup
An antimonial cup was a small half-pint mug or cup cast in antimony popular in Europe during the 17th and 18th centuries. They were also known under the names "pocula emetica," "calices vomitorii," or "emetic cups", as wine that was kept in on ...
References
Emetics
Glass types
Drugs with no legal status
Antimony
{{glass-material-stub