A somewhat more powerful preparation for metal-work is a cleaning paste made as follows: oxalic acid, 1 oz.
A weak solution of oxalic acid may be safely applied with a piece of woollen material; it will remove the tarnish, and then, after well washing, the metal can be polished with fine chalk or whiting.
When paper is disfigured with iron-moulds, it may be restored by applying to the stained part a solution of sulphate of potash, and afterwards a weak solution of oxalic acid.
This is applicable to other substances; but care must be taken to place the oxalic acid in a safe place, and to mark the bottom containing it "poison.
Take one ounce of Prussian blue, one-half ounce of oxalic acid; dissolve in one quart of perfectly soft rain water.
Chemically this Love Apple contains citric and malic acids: and it further possesses oxalic acid, or oxalate of potash, in common with the Sorrel of our fields, and the Rhubarb of our kitchen gardens.
The sour taste of the stalks is due to oxalic acid, or rather to the acid oxalate of potash.
Nitric acid will convert this pectin intooxalic acid, or salts of sorrel.
The solution containing the cadmium is concentrated by evaporation, and mixed with an excess of oxalic acid and alcohol.
The residue (after removing the ammonic salts by ignition) is taken up with a little water and a few crystals of oxalic acid, transferred to a platinum dish, evaporated to dryness, and ignited.
On treating with oxalic acid, cerium, lanthanum, and didymium are precipitated as oxalates, which on ignition are converted into oxides.
Oxalic acid (but not tartaric acid) in minute quantities destroys the colour.
The solution is standardised by titrating a quantity of oxalic acid about equivalent to the lime present in the assay; 0.
It is distinguished by the insolubility of its hydrate in potash, by the insolubility of its oxalate in oxalic acid, and by not being precipitated by hyposulphite of soda or potassium sulphate.
The solution of oxalic acid is made by dissolving 2.
The residue is taken up with a little water, treated with a few crystals of oxalic acid, and again evaporated and ignited.
It may be of interest to refer to a theory put forward by Liebig as to the action of oxalic acid in guano.
Liebig's theory as to the action of oxalic acid in guano 330 VII.
Or; to a solution of Prussian blue in oxalic acid, first chromate of potash is added, and then acetate of lead.
Dissolved in oxalic acid, the blue is available as an ink, or for tinting maps.
Fusion with alkaline hydrates for the production ofoxalic acid (D.
Such condensation of lævulose has been effected by two methods: (a) by heating the concentrated aqueous solution with a small proportion of oxalic acid at 3 atm.
A good substitute for the bath as above prepared for sepia prints may be made by adding one part of saturated solution of oxalic acid to each ten parts of oxalate of potash solution.
Oxalic acid 1 ounce Shake until the solution turns green and then immediately pour off the solution from any crystals remaining undissolved.
It is recommended that the first water used for washing should be slightly acidified with oxalic acid.
By repeating this treatment they yield pure colourless oxalic acid at the third crystallisation.
Potash also readily dissolves cystine, as do also oxalic acid and the strong mineral acids.
It has been proposed to colour Epsom salt in this way, to distinguish it from oxalic acid.
A solution of soluble Prussian blue in either oxalic or hydrochloric acid, slightly diluted, and afterwards further diluted with water to the proper shade of colour.
Nitric acid turns it red, and a reddish-brown solid mass is formed; with heat, it converts it into oxalic acid.
With the exception of gum and sugar of milk all starchy and saccharine substances yield oxalic acid when treated with nitric acid at a somewhat elevated temperature.
This oxalic acid now exists as oxalate of potassium and sodium in the grey powder resulting from stage 3.
The soluble oxalates are easily formed by directly neutralising a solution of oxalic acid with a metallic hydrate, carbonate, or oxide; and the insoluble oxalates, by double decomposition.
When fused with a mixture of dry sodium and potassium hydroxides, it is decomposed into oxalic and acetic acids.
When boiled with nitric acid, it is oxidized to mucic, saccharic, and oxalic acids.
Hold in a wine-glass of hard water, a crystal of oxalic acid, and white threads will instantly descend through the liquid, suspended from the crystal.
If the acid has not been used in sufficient quantity to destroy the texture of the paper, and reduce it to the state of tinder, the colour may be discharged by washing it with a strong solution of oxalic acid in water.
Probable cause: Use of oxalic acid by the bookbinder to remove grease marks, &c.
Pertaining to, or designating, an aldehyde acid, intermediate between glycol and oxalic acid.
Pertaining to, or derived from, oxalic acid and aniline; -- used to designate an acid obtained in white crystalline scales by heating these substances together.
It is a double aldehyde, between glycol andoxalic acid.
Half an ounce of oxalic acid, in a pint of soft water.
Stains can be removed from marble, by oxalic acid and water, or oil of vitriol and water, left on fifteen minutes, and then rubbed dry.
Remove grease, by French chalk, and stains, by diluted oxalic acid, or cream of tartar.
Oxalic acid, a vegetable acid, which exists in sorrel.
Ink-stains can be taken out of mahogany, by one teaspoonful of oil of vitriol mixed with one tablespoonful of water, or by oxalic acid and water.
The oxalic acid is best, but must be instantly washed off.
The determination ofoxalic acid in tea, coffee, marmalade, vegetables and bread.
Hanausek[131] demonstrated the presence of oxalic acid in unripe beans, and citric acid has been isolated from Liberian coffee.
The effect is that the oxalic acid unites with the oxide of mercury, and forms an oxalate of mercury, which, when struck with a hammer, produces a detonation.
Tartaric, acetic, and oxalic acids prevent it from crystallizing.
It is decomposed by nitric acid with effervescence, being converted into oxalic and malic acids.
Oxalic acid does not act on mercury, but dissolves its oxide, and forms with it a white powder.
For example, with alum and oxalic acid as a mordant and logwood as a dye, blue is obtained; but with a mordant of ferric sulphate and a dye of logwood, blacks and grays result.
The group of carbon, oxygen, and hydrogen atoms which confers the property of acidity upon an organic compound is a half-molecule of oxalic acid--it is known as the carboxyl group.
Corallin and aurin discovered by Kolbe and Schmitt and by Persoz; leading to manufacture fromoxalic acid and phenol.
Then in 1866 diphenylamine was shown by Girard and De Laire to be capable of yielding a fine blue by heating it with oxalic acid, and this blue, on account of the purity of its shade, is still an article of commerce.
These chemists found that a good yield of the colouring-matter was obtained by heating phenol with oxalic and sulphuric acids.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "oxalic" in a variety of sentences. We hope that you will now be able to make sentences using this word.
