nitric acid

Definitions

  • WordNet 3.6
    • n nitric acid acid used especially in the production of fertilizers and explosives and rocket fuels
    • ***
Webster's Revised Unabridged Dictionary
  • Interesting fact: Plant life could not exist without lightning. Nitrogen, an essential food for plants, comprises 80% of the atmosphere, but in a form that is insoluble and unusable. It's the intense heat of lightning that forces the nitrogen to combine with oxygen in the air, forming nitrogen oxides that are soluble in water and fall to the earth in rain as dilute nitric acid. This reacts with minerals in the ground to become the nitrates on which the plants depend.
    • Nitric acid a colorless or yellowish liquid obtained by distilling a nitrate with sulphuric acid. It is powerfully corrosive, being a strong acid, and in decomposition a strong oxidizer.
    • ***
Chambers's Twentieth Century Dictionary
    • n Nitric acid an acid got by distilling a mixture of sulphuric acid and nitrate of sodium—it acts powerfully on metals, and is known by the name of Aqua-fortis
    • ***

Etymology

Chambers's Twentieth Century Dictionary
Fr.,—L. nitrum—Gr. nitron, natron, potash, soda—Ar. nitrún, natrún.

Usage

In literature:

ALBUMEN IN URINE in chemical composition resembles the white of an egg, and is detected by the application of heat, nitric acid, etc.
"The People's Common Sense Medical Adviser in Plain English" by R. V. Pierce
The residue is dissolved in water, a few drops of nitric acid added, and the solution divided into two portions.
"Scientific American Supplement, No. 365, December 30, 1882" by Various
Dilute nitric acid gives a white precipitate, soluble in excess, and also in tartaric acid.
"Aids to Forensic Medicine and Toxicology" by W. G. Aitchison Robertson
The three substances most difficult to get at are: nitric acid, phosphoric acid and potash.
"Talks on Manures" by Joseph Harris
The ammoniacal silver nitrate solution is prepared by dissolving 13.345 grammes of pure silver in pure nitric acid, adding 250 c.c.
"The Handbook of Soap Manufacture" by W. H. Simmons
Anyhow, try the copper shavings and nitric acid first.
"Punch, or the London Charivari, Vol. 98, February 1, 1890" by Various
Very early, however, he learned to put every report upon the touchstone, and under the nitric acid of criticism.
"Charles Carleton Coffin" by William Elliot Griffis
Sulphuric acid from the balance cases, for instance, mixed with its own volume of commercial nitric acid, does very well.
"On Laboratory Arts" by Richard Threlfall
Then it is given a coating of dilute nitric acid which is rubbed well into the wood fiber.
"Mission Furniture" by H. H. Windsor
To be more accurate, he pours nitric acid upon the mark.
"Diggers in the Earth" by Eva March Tappan
***

In news:

Body is in the mid 40's RC, Need the blade edge up a bit more though it's in the mid 50's BTW this is etched with nitric acid.
Tariq Zehawi/The Record A roofing worker was badly burned when he fell into a tank filled with nitric acid.
OKLAHOMA CITY — Chemical manufacturer LSB Industries, Inc announced Tuesday plans to build a $120 million nitric acid plant in El Dorado, Ark.
A chain reaction that began with an explosion in El Dorado Chemical's strong nitric acid plant reactor system ultimately led to a series of sulfur fires early Tuesday morning, said Greg Withrow, of EDC.
The researchers largely attribute the decrease to the amendments to the Clean Air Act in 1990 regulating emissions of sulfur dioxide and nitrogen oxide, the gases that become sulfuric and nitric acid when mixed with rain water.
What effect does nitric, sulfuric and/or hydrochloric acid have on type 304 and 316 stainless steel.
A scrubber available from PKG Equipment, constructed of ½-inch thick PVC , is designed to remove 99.9% of nitric acid from exhaust streams at flow rates to 20,000 cfm.
***

In science:

The completed QWRs were etched with a Buffered Chemical Polishing solution (1:1:2 mixture by volume of concentrated hydro fluoric, nitric, and phosphoric acid) to remove 120 mm from the inside surface.
Niobium Quarter-Wave Resonator Development for The Rare Isotope Accelerator
Oxidation of multiwalled carbon nanotubes by nitric acid.
Carbon Nanotubes in Biology and Medicine: in vitro and in vivo Detection, Imaging and Drug Delivery
Etching of the CIGS absorber layer is possible with nitric acid and has been previously demonstrated .
Direct measurements of band gap grading in polycrystalline CIGS solar cells
The most homogeneously etched layers are obtained in our experiments using a mixture of hydrochloric and nitric acid, which forms aqua regia.
Direct measurements of band gap grading in polycrystalline CIGS solar cells
First, the surface of the fin is cleaned by immersion in 1 molar nitric acid for 30 s, then rinsed with deionized water.
Bose-Einstein Condensation of Atomic Hydrogen
***