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, saltpetre (salt′pēt′ĕr) [L. sal petrae, salt of rock]
A common name for potassium nitrate.
CAS # 7757-79-1

Chile saltpeter

A common name for sodium nitrate, NaNO3; a crystalline powder, saline in taste and soluble in water.
CAS # 7631-99-4

saltpeter, saltpetre

potassium nitrate.
References in periodicals archive ?
Partington describes the use of urine when refining saltpetre for black powder (p.
Since 1 June, saltpetre is down in price by 30%, to [pounds sterling] 990/; tonne; charcoal has reduced in price by 20%, to [pounds sterling] 166/tonne; and I sulphur has dipped by 12%, to [pounds sterling]113/ tonne.
Besides salt, it uses brown sugar and - the magic ingredient - saltpetre (a constituent of gunpowder).
WHO WHAT WHERE WHEN: The Queen Mother; Saltpetre or nitre; NW Spain; 1945.
Soot is a brilliant food for tobacco, which needs tonnes of saltpetre," he says.
The other half, after curing with saltpetre, would be hung high in the chimney corner - the chimley fawr - over a log fire, where it would mature over the sweet smelling smoke, until it took on the beautiful, golden hue of autumn leaves.
The idea took two years to develop into what we now know as crackers with their saltpetre friction strips to give a loud bang, written jokes and extra novelties.
The mould should close like those used by confectioners for iced creams; when thus moulded place it again in the freezing pan covered with ice cream and saltpetre.
During Victorian restorations a layer of highly explosive saltpetre was found beneath the floor, dating from the hall's use as an armoury during the Civil War.
I want to prepare a dish with ox tongue and the recipe calls for raw tongue to be immersed in water containing saltpetre.
There's no doubt what is in this cure: sea salt, sugar, Juniper berries and saltpetre (potassium nitrate), it's all listed on the traceability label and the flavour is exquisite.