Word Finder - boiling

definition

(of liquids) To heat to the point where it begins to turn into a gas.

example

Boil some water in a pan.

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To cook in boiling water.

example

Boil the eggs for three minutes.

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(of liquids) To begin to turn into a gas, seethe.

example

Pure water boils at 100 degrees Celsius.

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To bring to a boil, to heat so as to cause the contents to boil.

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(used only in progressive tenses, of weather) To be uncomfortably hot.

example

It’s boiling outside!

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(used only in progressive tenses) To feel uncomfortably hot.

example

I’m boiling in here – could you open the window?

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To form, or separate, by boiling or evaporation.

example

to boil sugar or salt

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To steep or soak in warm water.

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To be agitated like boiling water; to bubble; to effervesce.

example

the boiling waves of the sea

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To be moved or excited with passion; to be hot or fervid.

example

His blood boils with anger.

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The process of changing the state of a substance from liquid to gas by heating it to its boiling point.

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An animation style with constantly changing wavy outlines, giving a shimmering or wobbling appearance.

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That boils or boil.

example

boiling kettle  boiling oil

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Of a thing: extremely hot or active.

example

The radiator is boiling – I’m going to turn it down a bit.

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Of a person: feeling uncomfortably hot.

example

I’m boiling – can’t we open a window?

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Of the weather: very hot.

example

It’s boiling out today!

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(of adjectives associated with heat) Extremely

example

He was boiling mad.

It might get the pot boiling a bit.

He brought in a boiling samovar.

It forms quadratic prisms, having a violet reflex and insoluble in boiling hydrochloric acid.

Something was boiling in a small cauldron at the edge of the fire and a soldier in a peaked cap and blue overcoat, lit up by the fire, was kneeling beside it stirring its contents with a ramrod.

There is no longer the measured quiet sound of throbbing activity, like the sound of boiling water, but diverse discordant sounds of disorder.

Mitenka's wife and sisters-in-law thrust their heads and frightened faces out of the door of a room where a bright samovar was boiling and where the steward's high bedstead stood with its patchwork quilt.

The cracking process practically consists in distilling the oils at a temperature higher than the normal boiling point of the constituents which it is desired to decompose.

The process of manufacturing soaps by boiling fatty acids with caustic alkalis or sodium carbonate came into practice with the development of the manufacture of candles by saponifying fats, for it provided a means whereby the oleic acid, which is valueless for candle making, could be worked up. The combination is effected in open vats heated by a steam coil and provided with a stirring appliance; if soda ash be used it is necessary to guard against boiling over.

It forms red crusts, is insoluble in cold water, but is decomposed by boiling water.

These in their simplest form are cans filled with water, which is heated by immersing them in a vessel containing boiling water.

The processes of soap manufacture may be classified (a) according to the temperatures employed into (I) cold processes and (2) boiling processes, or (b) according to the nature of the starting material - acid or oil and fat - and the relative amount of alkali, into (1) direct saturation of the fatty acid with alkali, (2) treating the fat with a definite amount of alkali with no removal of unused lye, (3) treating the fat with an indefinite amount of alkali, also with no separation of unused lye, (4) treating the fat with an indefinite amount of alkali with separation of waste lye.

The ordinary method of adding resin consists in stirring it in small fragments into the fatty soap in the stage of clear-boiling; but a better result is obtained by separately preparing a fatty soap and the resin soap, and combining the two in the pan after the underlye has been salted out and removed from the fatty soap. The compound then receives its strengthening boil, after which it is fitted by boiling with added water or weak lye, continuing the boil till by examination of a sample the proper consistency has been reached.

These compounds are both decomposed by water, the former giving dichloraceto-trichlorcrotonic acid (4), which on boiling with water gives dichlormethylvinyl-a-diketone (5).

The heptachlor compound when treated with chlorine water gives trichloraceto-pentachlorbutyric acid (6), which is hydrolysed by alkalis to chloroform and pentachlorglutaric acid (7), and is converted by boiling water into tetrachlor-diketo-Rpentene (8).

By boiling with water the acid is converted into the dihydroterephthalic acid.

Horbaczewski's method, which consists in boiling the substance with strong potash, saturating the cold solution` with chlorine, adding hydrochloric acid, and boiling till no more chlorine is liberated, and then testing for sulphuric acid with barium chloride.

In the second classification (2) is typical of the " cold " process, whilst (I), (3), (4) are effected by the, boiling " process.

The pan proper is surmounted by a great cone or hopper called a curb, to provide for the foaming up of the boiling mass and to prevent loss from overflowing.

Direct firing is used for the second boiling of the soap mixture; but for this superheated steam may with advantage be substituted, either applied by a steam-jacket round the pan or by a closed coil of pipe within it.

Then without further addition of alkali the boiling is continued for a few minutes, when the soap is ready for salting out or " graining."

Steam is turned on, and, the mass being brought to a clear condition with weak lye or water, strong lye is added and the boiling continued with close steam till the lye attains such a state of concentration that the soap is no longer soluble in it, and it will separate from the caustic lye as from a common salt solution.

From the conditions of the manufacture care must be taken to regulate the amount and strength of the alkali in proportion to the oil used, and the degree of concentration to which the boiling ought to be continued has to be determined with close observation.

Hydrocarbons of similar structure have been prepared by Thiele, for example, the orange-yellow tetraphenyl-para-xylylene, which is obtained by boiling the bromide C6H4[CBr(C6H5)2]2 with benzene and molecular silver.

On boiling with concentrated nitric acid it yields picric acid.

Potassium persulphate oxidizes it in alkaline solution, the product on boiling with acids giving hydroquiirone carboxylic acid (German Patent 81,297).

Saturated steam is steam in contact with liquid water at a temperature which is the boiling point of the water and condensing point of the steam; superheated steam is steam out of contact with water heated above this temperature.

Succulent specimens, as many of the Orchidaceae and seduins and various other Crassulaceous plants, require to be killed by immersion in boiling water before being placed in drying paper, or, instead of becoming dry, they will grow between the sheets.

A boiling solution of caustic potash hydrolyses it to ammonia and succinic acid.

The a-oxime, on long continued boiling with a concentrated solution of a caustic alkali, is partially decomposed with formation of some acetone and acetoxime (C. Harries, Ber., 1898, 31, pp. 1381, 1808; 18 99, 32, p. 1 33 1).

A dark blue liquid is produced, and the first portions of gas boiling off from the mixture correspond fairly closely in composition with nitrogen trioxide.

Numerous derivatives of acetophenone have been prepared, one of the most important being orthoaminoacetophenone, NH2.C6H4.CO.CH3, which is obtained by boiling orthoaminophenylpropiolic acid with water.

This change is seen in the transformation of the " white " of an egg on boiling.

Boiling with dilute mineral acids, or baryta water, decomposes albumins into carbon dioxide, ammonia and fatty aminoand other acids.

The globulins are insoluble in water and in dilute acids, but soluble in alkalies and in neutral salt solutions; these solutions are coagulated on boiling.

The name is applied in commerce to a complex mixture of carbohydrates obtained by boiling starch with dilute mineral acids; in chemistry, it denotes, with the prefixes d, 1 and d+l (or i), the dextro-rotatory, laevo-rotatory and inactive forms of the definite chemical compound defined above.

Barreswil found that a strongly alkaline solution of copper sulphate and potassium sodium tartrate (Rochelle salt) remained unchanged on boiling, but yielded an immediate precipitate of red cuprous oxide when a solution of glucose was added.

The glucose of commerce, which may be regarded as a mixture of grape sugar, maltose and dextrins, is prepared by hydrolysing starch by boiling with a dilute mineral acid.

When caoutchouc is heated slightly above the temperature of boiling water it becomes softer and loses much of its elasticity, which, however, it recoveres on cooling.

Sometimes the excess is partially removed by boiling the finished goods with a solution of caustic soda, or some other solvent of sulphur.

Klaproth in the mineral honeystone, which is the aluminium salt of the acid, The acid may be prepared by warming honeystone with ammonium carbonate, boiling off the excess of the ammonium salt and adding ammonia to the solution.

Dilute sulphuric acid (say an acid of 20% H 2 SO 4 or less) has no action on lead even when air is present, nor on boiling.

Boiling concentrated sulphuric acid converts lead into sulphate, with evolution of sulphur dioxide.

The normal ortho-phosphate, Pb3(P04)2, is a white precipitate obtained by adding sodium phosphate to lead acetate; the acid phosphate, PbHPO 4, is produced by precipitating a boiling solution of lead nitrate with phosphoric acid; the pyrophosphate and meta-phosphate are similar white precipitates.

The vermilion-like pigment which occurs in commerce as "chromered" is a basic chromate, Pb2Cr05, prepared by treating recently precipitated normal chromate with a properly adjusted proportion of caustic soda, or by boiling it with normal (yellow) potassium chromate.

As the carbon content of the molecule increases, they become less soluble in water, and their smell becomes less marked with the increase in boiling point, the highest members of the series being odourless solids, which can only be distilled without decomposition invacuo.

Both oximes and hydrazones, on boiling with dilute acid, regenerate the parent aldehyde.

In the preparation of alum from clays or from bauxite, the material is gently calcined, then mixed with sulphuric acid and heated gradually to boiling; it is allowed to stand for some time, the clear solution drawn off and mixed with acid potassium sulphate and allowed to crystallize.

Columbium compounds are usually prepared by fusing columbite with an excess of acid potassium sulphate, boiling out the fused mass with much water, and removing tin and tungsten from the residue by digestion with ammonium sulphide, any iron present being simultaneously converted into ferrous sulphide.

The residue is washed, extracted by dilute hydrochloric acid, and again well washed with boiling water.

The nitro compounds are colourless, somewhat pleasant smelling liquids, which distil without decomposition and possess boiling points much higher than those of the isomeric nitrous esters.