Crossword clues for picrate
The Collaborative International Dictionary
Picrate \Pi"crate\, n. (Chem.) A salt of picric acid.
Wiktionary
n. (context chemistry English) any salt or ester of picric acid
Wikipedia
A picrate is a salt or an ester of picric acid (a 2,4,6-trinitrophenol). But it could also be an additional compound which picric acid forms with many aromatic hydrocarbons, aromatic amines, aliphatic amines, alkalines, and other compounds. These additional compounds are also called picrates even though they are not a salt of picric acid.
The picrate ion has yellow color. Many picrates are explosives, for example ammonium picrate (known as Dunnite). Some are used as primary explosives, namely lead picrate or potassium picrate which find their use as primers for cartridge ammunition.
Ferrous picrate is used in some applications as a diesel fuel additive to achieve better mileage.
Sodium picrate is used as an etchant in metallography to differ preeutectoid ferrite in hypoeutectoid steel from preeutectoid cementite in hypereutectoid steel by etching cementite to a dark colour, whereas not attacking ferrite and thus it remains reflective.
Picrates of some metals tend to be significantly more sensitive to impact, friction and shock than picric acid itself. As a result, storage of picric acid (or mixtures containing it) in metal containers is strongly discouraged due to the high risk of accidental explosion.
Usage examples of "picrate".
It was under the action of this cylinder, charged with some explosive substance, nitro-glycerine, picrate, or some other material of the same nature, that the water of the channel had been raised like a dome, the bottom of the brig crushed in, and she had sunk instantly, the damage done to her hull being so considerable that it was impossible to refloat her.
Earlier that day, when he had finished downloading the pornography, he had web-searched a couple of explosives sites and read about ammonium picrate.
Starkey took out her case notebook and copied the components: RDX, TNT, ammonium picrate, powdered aluminum, wax, and calcium chloride.
Besides, it is an understood thing that the addition of gunpowder renders picrate far more effective in blasting such rocks as this, as then the violence of the picrate prepares the way for the powder which, slower in its action, will complete the disseverment of the basalt.
With characteristic Anglo-Saxon incautiousness he had brought on board, with the rest of his baggage, a case containing no less than thirty pounds of picrate, and had allowed the explosive matter to be stowed in the hold with as little compunction as a Frenchman would feel in smuggling a single bottle of wine.