Agriculture dominated the economy, but most farmers were also engaged in the production of tar andsaltpetre.
From theCambridge English Corpus
Thirdly, will consideration be given to the effect ofsaltpetrein the paper which is used in the making of cigarettes?
From the
Hansard archive
Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0
There is the auto-cure—by injection—the use of salt and the use ofsaltpetre.
From the
Hansard archive
Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0
It does so happen that in the manufacture of tobacco, and particularly of cigarette tobacco, a considerable amount ofsaltpetreis used, andsaltpetreis known to be an irritant.
From the
Hansard archive
Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0
Indigo was the major auction commodity, although shellac, sugar,saltpetre, raw silk, cotton and a variety of produce were listed in the records.
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Wikipedia
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Proportions by weight are 75% potassium nitrate (known as saltpeter orsaltpetre), 15% softwood charcoal, and 10% sulfur.
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The doctors ask the chef what this is; he responds that this issaltpetre, used to preserve meats.
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Naturalsaltpetrehas the same origin as common salt.
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The method of making it by heating sulphur withsaltpetrehas been attributed to him.
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After testing thesaltpetre, they find that instead of sodium nitrate, the can contains sodium nitrite.
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Soon this became a trading centre forsaltpetre.
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It also hassaltpetre, gunpowder, and lead-smelting works.
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Thesaltpetrewas used in the production of gunpowder.
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This resulted in an improved method of extractingsaltpetreand consequently higher quality gunpowder.
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Wikipedia
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Heating turns thesaltpetreinto potassium oxide or hydroxide, which absorbs carbon dioxide from the air.
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Wikipedia
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These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
This example is from Wikipedia and may be reused under a CC BY-SA license.