Nitrum

His word nitrum (from Latin from Greek nítron) continued on, along with nitre, as names for saltpeter (from sal petrae), i.e., potassium nitrate. ❋ Unknown (1974)

The name derives from the Latin nitrum and Greek nitron for "native soda" and genes for "forming" because of nitrogen's presence in potassium nitrate (KNO), so called salpeter or nitre or native soda. ❋ Unknown (2009)

“All green vegetables will be made emerald colored, if they are cooked with nitrum.” ❋ Harold McGee (2004)

It came to pass also, as a certain merchant sailed that way, loaden with nitrum, the passengers went to land for to repose themselves, and to take in some store of fresh water into their vessel. ❋ Thomas Malory Jean Froissart (N/A)

Being also on the shore, they kindled a fire and made provision for their dinner, but (because they wanted trevets or stones whereon to set their kettles on) ran by chance into the ship, and brought great pieces of nitrum with them, which served their turn for that present. ❋ Thomas Malory Jean Froissart (N/A)

Sometimes a material consisting of a lye made of lime or wood-ashes, of nitrum and of fuller's earth was applied to the body. ❋ James Sands Elliott (N/A)

Then Kennaston found the alchemist had been compounding nitrum of Memphis with sulphur, mixing in a little willow charcoal to make the whole more friable, and that the powder had exploded. ❋ Unknown (1917)

Mention of this substance is made in (Proverbs 25: 20) -- "and as vinegar upon nitre" -- and in (Jeremiah 2: 26) The article denoted is not that which we now understand by the term nitre i.e. nitrate of Potassa -- "saltpetre" -- but the nitrum of the Latins and the natron or native carbonate of soda of modern chemistry. ❋ Unknown (1884)

Hermetic Masons framed for it this aphorism, _Igne nitrum roris invenitur_. ❋ Albert Pike (1850)

Dr Heberden, among other favours, some salt which he collected on the top of the mountain, where it is found in large quantities, and which he supposed to be the true _natrum_ or _nitrum_ of the ancients: ❋ Robert Kerr (1784)

There are two indeed which, at first sight, appear to be of this kind; these are the separation of the fixed alkali from the nitrous acid by means of inflamed charcoal, in the process for making _nitrum fixatum_, and of the same alkali, from vegetable acids merely by heat; but, upon examining the product of each process, we find the alkali either fully or nearly saturated with air. ❋ Joseph Black (1763)

Lull called soda nitrum, and he called saltpeter sal nitri. ❋ Unknown (1974)

The fait deflagrates readily with charcoal, or fulphur, and leaves an alkali exaftly fimilar in tafl: e to that of the nitrum fixum. ❋ Unknown (1785)

Ei nitrum et Jalem cribelUtum cnm mette in PUgeU la imponis. ❋ Charles Du Fresne Du Cange (1778)

\3 'is from French nitre from Latin nitrum from Greek nítron ` native Na\? ❋ Unknown (1974)