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sulphuric acid
Longman Dictionary of Contemporary English
sulphuric acid
▪ As time passed, larger and larger quantities of sulphuric acid were exploded, prompting cheers from the crowd.
▪ Every year Val'Ouest will use 32,000 tonnes of ammonia and 92,000 tonnes of sulphuric acid to treat 300,000 tonnes of slurry.
▪ Here he also made alum and sulphuric acid by the lead chamber process.
▪ Hydrochloric acid is sometimes replaced by nitric or sulphuric acid.
▪ No problem if your inquisitive Year 10 tips potassium into concentrated sulphuric acid.
▪ Peregrine Phillips took out a patent in 1831 for the contact or catalytic process for the manufacture of sulphuric acid.
▪ The amount of water vapour in a battery depends on the concentration of sulphuric acid in the solution.
▪ The residue is treated with sulphuric acid and boiled.
The Collaborative International Dictionary
sulphuric acid

Sulphur \Sul"phur\, n. [L., better sulfur: cf. F. soufre.]

  1. (Chem.) A nonmetallic element occurring naturally in large quantities, either combined as in the sulphides (as pyrites) and sulphates (as gypsum), or native in volcanic regions, in vast beds mixed with gypsum and various earthy materials, from which it is melted out. Symbol S. Atomic weight 3

  2. The specific gravity of ordinary octohedral sulphur is 2.05; of prismatic sulphur,

    1. 96.

      Note: It is purified by distillation, and is obtained as a lemon-yellow powder (by sublimation), called flour, or flowers, of sulphur, or in cast sticks called roll sulphur, or brimstone. It burns with a blue flame and a peculiar suffocating odor. It is an ingredient of gunpowder, is used on friction matches, and in medicine (as a laxative and insecticide), but its chief use is in the manufacture of sulphuric acid. Sulphur can be obtained in two crystalline modifications, in orthorhombic octahedra, or in monoclinic prisms, the former of which is the more stable at ordinary temperatures. Sulphur is the type, in its chemical relations, of a group of elements, including selenium and tellurium, called collectively the sulphur group, or family. In many respects sulphur resembles oxygen.

    2. (Zo["o]l.) Any one of numerous species of yellow or orange butterflies of the subfamily Pierin[ae]; as, the clouded sulphur ( Eurymus philodice syn. Colias philodice), which is the common yellow butterfly of the Eastern United States.

      Amorphous sulphur (Chem.), an elastic variety of sulphur of a resinous appearance, obtained by pouring melted sulphur into water. On standing, it passes back into a brittle crystalline modification.

      Liver of sulphur. (Old Chem.) See Hepar.

      Sulphur acid. (Chem.) See Sulphacid.

      Sulphur alcohol. (Chem.) See Mercaptan.

      Sulphur auratum [L.] (Old Chem.), a golden yellow powder, consisting of antimonic sulphide, Sb2S5, -- formerly a famous nostrum.

      Sulphur base (Chem.), an alkaline sulphide capable of acting as a base in the formation of sulphur salts according to the old dual theory of salts. [Archaic]

      Sulphur dioxide (Chem.), a colorless gas, SO2, of a pungent, suffocating odor, produced by the burning of sulphur. It is employed chiefly in the production of sulphuric acid, and as a reagent in bleaching; -- called also sulphurous anhydride, and formerly sulphurous acid.

      Sulphur ether (Chem.), a sulphide of hydrocarbon radicals, formed like the ordinary ethers, which are oxides, but with sulphur in the place of oxygen.

      Sulphur salt (Chem.), a salt of a sulphacid; a sulphosalt.

      Sulphur showers, showers of yellow pollen, resembling sulphur in appearance, often carried from pine forests by the wind to a great distance.

      Sulphur trioxide (Chem.), a white crystalline solid, SO3, obtained by oxidation of sulphur dioxide. It dissolves in water with a hissing noise and the production of heat, forming sulphuric acid, and is employed as a dehydrating agent. Called also sulphuric anhydride, and formerly sulphuric acid.

      Sulphur whale. (Zo["o]l.) See Sulphur-bottom.

      Vegetable sulphur (Bot.), lycopodium powder. See under Lycopodium.

sulphuric acid

alt. (context British spelling inorganic compound English) A colourless highly corrosive liquid, H2SO4. n. (context British spelling inorganic compound English) A colourless highly corrosive liquid, H2SO4.

sulphuric acid

n. (H2SO4) a highly corrosive acid made from sulfur dioxide; widely used in the chemical industry [syn: vitriol, oil of vitriol, sulfuric acid]

Sulphuric Acid (novel)

Sulphuric Acid is a Belgian novel by Amélie Nothomb. It was first published in 2005. It details the thoughts and pursuits of the people involved in a reality show recreating a concentration camp.

The book provoked strong reactions, both for and against. Nothomb was subsequently invited to explain herself on a TV show hosted by her friend Frédéric Beigbeder.

Usage examples of "sulphuric acid".

Then a battery must have broken loose and smashed another, and another, and another, and then the jars and carboys until the entire floor-fortunately of acid-resisting material-was awash to a depth of five or six inches in sulphuric acid.

This was true acid rain, she supposed, sulphuric acid droplets formed kilometers above.

My nostrils twitched to the pungent combined smells of oil and sulphuric acid.

He took a few cubic centimetres of some culture which he had been preparing, placed it in a tube, and poured in eight or ten drops of sulphuric acid.

Now the beach supplied sand, lime supplied chalk, sea-weeds supplied soda, pyrites supplied sulphuric acid, and the ground supplied coal to heat the kiln to the wished-for temperature.

They had emptied two-and-a-half carboys of concentrated sulphuric acid, and burned eleven embryos beneath the sand.

Fifty miles of carbon dioxide, laced with a little sulphuric acid.

I'm going to show you how the d'zertanoj distill oil, how the Mastreguloj make sulphuric acid, how the Trozelligoj build engines.

This tannin differs from that of galls and oak- bark, and does not yield glucose when acted upon by sulphuric acid, which, it is stated, resolves it into almine red and sugar.

This process is conducted with a view of improving the colour and odour of the Hops, since sulphuric acid is found to retard the production of the Valerianic odour and to both preserve and improve the colour of the Hops.