adverb

definition

Using a chemical reaction, process or operation.

definition

According to the principles of chemistry.

Examples of chemically in a Sentence

Metals may unite chemically both with metals and with non-metals.

The metal is very reactive chemically.

Chemically related to vanadium are the two elements tantalum and columbium or niobium.

Members noted that mutations are found in all chemically induced cancers.

Like H 2 O, CO 2 is a chemically inert molecule.

Other isomorphously related elements and groups were soon perceived, and it has been shown that elements so related are also related chemically.

Many electrolytic methods have been proposed for the purification of sugar; in some of them soluble anodes are used for a few minutes in weak alkaline solutions, so that the caustic alkali from the cathode reaction may precipitate chemically the hydroxide of the anode metal dissolved in the liquid, the precipitate carrying with it mechanically some of the impurities present, and thus clarifying the solution.

We thus learn that the bronzes referred to above, although chemically uniform when solid, are not so when they begin to solidify, but that the liquid deposits crystals richer in copper than itself, and therefore that the residual liquid becomes richer in tin.

The slimes are treated chemically for the separation of the metals contained in them.

Hampe prepared chemically pure bismuth by fusing the metal with sodium carbonate and sulphur, dissolving the bismuth sulphide so formed in nitric acid, precipitating the bismuth as the basic nitrate, redissolving this salt in nitric acid, and then precipitating with ammonia.

The anode residue is collected in the angular bottom of the tank, the electrolyte passes from the anode chamber to a series of tanks in which the more electro-negative constituents (silver, &c.) are chemically separated, and thence to the cathode chamber, where the copper is deposited electrolytically, thence it passes again to the anode chamber and so completes the cycle.

Heavy blanks have also been reduced chemically by making them part of the anode in a cyanide bath through which a current of electricity is passed.

His analytical skill enabled him to demonstrate the inaccuracy of the researches by which Berthollet attempted to support the opposite view, and to show among other things that some of the compounds which Berthollet treated as oxides were in reality hydrates containing chemically combined water, and the upshot was that by 1808 he had fully vindicated his position.

Chemically, it is thus indentical with the cubic mineral diamond, but between the two there are very wide differences in physical characters.

Chemically pure chloride of potassium is most conveniently prepared from the pure perchlorate by heating it in a platinum basin at the lowest temperature and then fusing the residue in a wellcovered platinum crucible.

Chemically it is methyl-tetrahydro-nicotinic acid.

Chemically it is the methyl ester of arecaidine.

The complex fat of the myelin becomes altered chemically, while the other components of the sheath break down.

As it descends it reaches a part of the kiln where the temperature is higher; here the carbonic acid of the carbonate of lime, and the combined water of the clay are driven off, and the resulting lime begins to act chemically on the dehydrated clay.

This may be almost chemically pure, when it is generally used for Keene's cement; or it may contain smaller or greater quantities of impurities, in which case it is suitable for the preparation of cements of the plaster of Paris class.

As an elementary substance, it is very similar in its physical properties to lead; it resembles lead chemically inasmuch as it forms an almost insoluble chloride and an insoluble iodide.

Under the head of notion are considered, firstly, the subjective forms of conception, judgment and syllogism; secondly, their realization in objects as mechanically, chemically or teleologically constituted; and thirdly, the idea first of life, and next of science, as the complete interpenetration of thought and objectivity.

For this purpose they are made by Moscicki in the form of glass tubes partly coated by silver chemically deposited on the glass on the inner and outer surfaces.

Chemically the sweet sherry differs from the natural dry light wines in that it contains relatively high proportions of alcohol, extractives, sugar and sulphates, and small quantities of acid and glycerin.

One of the first discoveries made with it was its power to electrolyse or chemically decompose certain solutions.

The municipality owns its waterworks, the water being obtained from eleven artesian wells, and being chemically similar to that of Waukesha Springs.

Stas, in his stoichiometric researches, prepared chemically pure bromine from potassium bromide, by converting it into the bromate which was purified by repeated crystallization.

Iron is very reactive chemically.

Chemically, oil of turpentine is a more or less complex mixture of hydrocarbons generically named terpenes.

Here it need only be said that the masses of vegetable substance, more or less carbonized and chemically altered, of which coal is composed, frequently contain cells and fragments of tissue in a condition recognizable under the microscope, as for example spores (sometimes present in great quantities), elements of the wood, fibres of the bark, &c. These remnants, however, though interesting as revealing something of the sources of coal, are too fragmentary and imperfect to be of any botanical importance.

Bodies which have a close resemblance in their chemical constitution exhibit a similar resemblance in their pharmacological action, and as the constitution of the substance becomes modified chemically so does its action pharmacologically.

The objection to a strictly chemical classification is, that while many substances closely allied chemically have a somewhat similar action in certain respects, yet in others they differ very widely - a striking example of which is given in the case of sodium and potassium.

The resins when taken internally have much the same action as essential oils, which are closely allied chemically, while the benzoic and cinnamic acids in the balsams modify their actions very slightly.

Although individual essential oils may differ somewhat in action, chemically and pharmacologically they are fundamentally similar.

Free living barnacle larvae are chemically attracted to barnacle larvae are chemically attracted to barnacle shells and tend to settle among established adults.

Chemically enhanced bentonites have been proposed to overcome the shortcomings of conventional bentonites.

We are interested in expanding the repertoire of biocatalytic reactions by developing novel biocatalysts for reactions that are chemically very difficult.

Researchers chemically modified adrenaline to find molecules that would have the same effect in dilating the bronchioles but without the stimulation of the heart.

Another option would be to process chemically using caustic soda.

Produce chemically engraved metal plates, chemical milled components and printed circuit boards with the production equipment manufactured by Fortex.

A standard copper strip was taken, the original formed leg terminals were cut off and the new design chemically etched.

Alumina substrates can also be used to produce chemically stable, strongly hydrophobic surfaces.

The surface properties will be controlled by chemically grafting monolayers with different functional groups on the outer surface.

These microbes absorb the soluble nutrients and exude enzymes to chemically breakdown the material further.

Socio-economic formations never appear in a chemically pure form.

The recent SPADE campaign provided a wealth of high time resolution data on a very large number of chemically reactive species.

But if you add charge carriers by chemically doping them they become superconductors with transition temperatures of up to 135K.

Antigenic molecules will be chemically synthesized from peptides on a ' scaffold ' to help hold them in a correct position.

Mechanisms of action of chemically modified tetracyclines in bone resorption and formation.

Lord Rayleigh in 1894 found that the density of atmospheric nitrogen was about 2% higher than that of chemically prepared nitrogen, a discovery which led to the isolation of the rare gases of the atmosphere (see Argon).

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