We are far from knowing just what happens when we pour acids and alkalies and foods into this witches' cauldron of blood.
Shall we therefore stop using acids and alkalies as medicines because we do not know each step in their mode of action?
They assume that the chemistry of the acids and alkalies is as simple inside of the body as it is outside of it and that the blood is simply a passive mixture of chemicals.
Besides the natural acids which exist in the juice of the grape, cheap and inferior wines often contain, also, the hurtful acids of spoiling, showing the approach to vinegar.
It dissolves in acids forming cobaltous salts, and on exposure to air it rapidly absorbs oxygen, turning brown in colour.
They are of a reddish colour and usually crystallize well; on heating with concentrated acids are usually transformed into the purpureo-salts.
It is shrivelled and even harder than when it was first placed in the tube, although it has had the same advantage of digestive fluids and acids that the other tube and our stomachs have.
The girls had been watching everything with deep interest, and Miss Miller continued, "If we leave these tubes alone, after a time the pepsin and acids will digest the egg.
When acids are employed for preserving anatomical parts in their natural state of suppleness, caution must be used to dilute them, with a sufficient quantity of water, so that they may not corrode or harden the parts.
I am satisfied that acids do not preserve animal matters; they disorganize them more or less promptly, in direct proportion to their concentration.
All these acids decompose the parts when they are not sufficiently diluted with water; they allow the liquor to putrefy or to freeze, and break the vessel when they are too weak.
Those salts derived from the combination of acids and earths, the alkalies or metals, may be employed like the acidsdiluted with water.
The natural fats and oils consist of complex mixtures of the glycerin compounds of these acids (known as olein, stearin, etc.
If this is treated with nitric and sulfuric acids we get from it picric acid, a yellow crystalline solid.
If, as was formerly sometimes the case, sulfuric acid was used to effect the conversion of the starch or sulfurous acid to bleach the glucose and these acids were not altogether eliminated, the product might be unwholesome or worse.
The alkali salts of the fatty acids are known to us as soaps.
So we find that it is the free and unsaturated fatty acids that cause butter and oil to become rank and rancid.
This mixed with nitric and sulfuric acids gives nitroglycerin, an easy thing to make, though I should not advise anybody to try making it unless he has his life insured.
These esters of the fatty acidsgive the characteristic savor to many of our favorite fruits, candies and beverages.
In the natural fats they exist not as free acids but as salts of an organic base, glycerin, as I explained in a previous chapter.
It is attacked and dissolved by hotacids and alkalies.
Since alundum is porous and not attacked by acids it is used for filtering hot and corrosive liquids that would eat up filter-paper.
As it decays, it produces carbonic acid and other acids which are able to dissolve mineral plant food not soluble in pure water and thus render it available to plants.
Aside from these are found certain coloring matters, certain acids and other matters which give taste, flavor, and poisonous qualities to fruits and vegetables.
Among the chemical we note the action of acids and alkalies upon metals.
All acids may be conveniently regarded as being built up of two essential portions, viz.
One atom of zinc can replace two atoms of hydrogen, so that one atom of zinc can replace the hydrogen in two equivalents of such acids as contain only one atom of hydrogen.
Since Metals dissolved in Acids attract but a small quantity of the Acid, their attractive Force can reach but to a small distance from them.
Do not the sharp and pungent Tastes of Acids arise from the strong Attraction whereby the acid Particles rush upon and agitate the Particles of the Tongue?
The chemicals used in its composition would make the ink run if acids were used to change the figures.
To discover whether or not acids were used to erase, if moistened litmus-paper be applied to the writing, the litmus-paper will become slightly red if there is any acid remaining on the suspected document.
Safety inks, so-called, designed to resist the action of acids and alkalies have been repeatedly put upon the market, but no such ink has ever successfully challenged the world and proved its title of safety.
Thick inks will respond to the acids slower than thin, and the time comparisons are misleading.
It is to take a one dollar silver certificate and by means of powerful acids and fine penwork the large figure "one" on the reverse side is split into two "tens," and the intermediate portion transformed into a scroll.
To determine the age of writing by applying bleaching acids and watching results and counting the seconds is a dangerous method.
The following is the proper way to proceed in mixing sulphuric acid as well as other acids of lighter weight.
Clip the ends of the wire, and a brush will be had that ordinary acids will not affect.
Illustration: The Shelf will Hold All the Spice Boxes and Keep Them Handy] Starting a Siphon [Illustration] It is often necessary in a laboratory to siphon acids and poisonous liquids.
An Acid Siphon When siphoning off acids or other disagreeable or poisonous liquids, it is very important that none of it touch the flesh or mouth.
Lemon juice, sour milk, and sour fruits are all too weak acids to injure clothes or skin, but their sour taste is a result of the acid in them acting on the nerves of taste.
Do not pour them into the sink, as acids ruin sink drainpipes.
These dry acids cannot act on the soda until they go into solution.
Acids act on the taste nerves in the tongue and give the taste of sourness; everything sour is an acid.
Whenever you put acidsand bases together, you get some kind of salt and water.
There is one, called hydrofluoric acid, that will eat through glass and has to be kept in wax bottles; and all acids tend to eat or corrode metals.
The sulfuric and nitric acids must be measured in glass or china cups, and the hydrochloric acid must be measured in a silver-plated spoon or in glass--not in tin.
With pink and blue litmus paper, test the different substances named below to see which are acids and which are bases.
In this and all other experiments when you use strong acids, pour the usedacids into the crockery jar that is provided for such wastes.
The generation of the humus-acids is probably hastened during the digestion of the many half-decayed leaves which worms consume.
By these means fresh surfaces are continually exposed to the action of the carbonic acid in the soil, and of the humus-acids which appear to be still more efficient in the decomposition of rocks.
The above ley was found upon trial to be saturated by acids without the least effervescence or diminution of weight.
Both of them seem to attract acids but weakly, and to alter their properties less when united to them than the other absorbents.
We learn by the latter part of this experiment, that the attraction of the volatile alkali for acids is stronger than that of magnesia, since it separated this powder from the acid to which it was joined.
It had lost about the half of its weight, and when reduced to a fine powder was readily dissolved by acids with an effervescence which was hardly perceivable: the alkali had therefore extracted its air.
When therefore the acids of the gastric juice are lacking, there is an insufficient stimulus to the pancreas to pour out its complex juices and complete digestion.
The acids of the gastric juice also stimulate the excretion of bile from the liver, and combining with the same ferment, the secretion, being taken up by the blood, stimulates the liver to an increased secretion of bile.
It is soluble in water, which an alkaline reaction, and unites withacids and metallic bases.
A coloring matter produced by the action of a mixture of strong nitric and sulphuric acids on phenylic alcohol.
Pertaining to, or designating, any one of several acids (known only in their salts) which contain more than one atom of chromium.
Pertaining to, or designating, certain acids analogous to the phosphonic acids, but containing two hydrocarbon radicals, and derived from the secondary phosphines by oxidation.
A term formerly given to the salts supposed to be formed respectively by neutralizingacids with certain peroxides.
Bacillus amylobacter usually accompanies the lactic acid organism, and decomposes lactic and other higher acidswith formation of butyric acid.
Nitration: the weight of the product obtained after digestion with a mixture of equal volumes of sulphuric and nitric acids for one hour in the cold.
Sidenote: Figures produced by action of acids or bromine.
The European form of this science, in contradistinction to the Arabian, arose from the doctrine of acids and alkalies, and their neutralization.
These fatty acids crystallize on cooling, in a most characteristic and beautiful way, forming wavy circular plates totally unlike any that I have seen before.
The acids produced by adding HCl to the potash soap were almost entirely insoluble in water.
A solution of the potash soap was treated with excess of hydrochloric acid, and after being well washed with hot water, the cake of fatty acids was dried thoroughly and weighed.
The acids produced by adding acid to the potash soap formed in this case a cake on cooling, of a much deeper color than I have before obtained.
The insoluble fattyacids amounted, as last stated, to 93.
The neutralizing power of these acids was then tested.
The crude fatty acids turn black with sulphuric acid, as the oil does, and yield a similar substance with nitric acid.
The dyes of Africa are found to resist both acids and light, properties which no other dyes seem to possess in the same degree.
Indigestion, however, with undue formation of acids proper, or acids unnatural, to the stomach, is a much more annoying affliction than slow digestion.
It is produced by the action of acids on metallic sulphides, and is an important chemical reagent.
An albuminous substance formed in gastric digestion, and by the action of boiling dilute acids on albumin.
Unlike cellulose, it is colored blue by iodine, and is converted into dextrin and sugar by boiling acids and amylolytic ferments.
It is the first member of the fatty acids in the paraffin series, and is homologous with acetic acid.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "acids" in a variety of sentences. We hope that you will now be able to make sentences using this word.
