reprecipitated

The authors have observed that in carefully conducted experiments cotton cellulose may be dissolved in the reagent, and reprecipitated with a loss of only 1 p.ct. in weight.

Researches on Cellulose 1895-1900 C. F. Cross

_ -- Ammonia, a white precipitate soluble in excess, reprecipitated by sulphuretted hydrogen; ferrocyanide of potassium, a white precipitate; sulphuretted hydrogen, a white precipitate in pure and neutral solutions.

Aids to Forensic Medicine and Toxicology

The latter result is evidenced by the formation of furfural, the former by the presence of soluble carbohydrates in the solution obtained by diluting the original solution and filtering from the reprecipitated cellulose.

Researches on Cellulose 1895-1900 C. F. Cross

The precipitate formed is transferred to the filter and well washed with water containing NH_ {3} Cl and NH_ {4} O, then dissolved in hydrochloric acid and reprecipitated with ammonia, filtering and washing as before.

Scientific American Supplement, No. 324, March 18, 1882 Various

It is then soluble in dilute alkalies, and can be reprecipitated from solution by alcohol, acids, or saline solutions.

Nitro-Explosives: A Practical Treatise

The cellulose reprecipitated from solution in Schweizer's reagent gave similar analytical results:

Researches on Cellulose 1895-1900 C. F. Cross

The penta-nitrate may be obtained in a pure state by the following process, devised by Eder: -- The gun-cotton is dissolved in concentrated nitric acid at 90° C., and reprecipitated by the addition of concentrated sulphuric acid.

Nitro-Explosives: A Practical Treatise

The disappearance of tungsten minerals from alluvial materials which are undergoing laterization, which has been described in Burma, [32] seems to indicate that the tungsten is dissolved in surface waters to some extent; but in the main it is probably carried completely out of the vicinity and not reprecipitated below.

The Economic Aspect of Geology 1915

Farther down it may be reprecipitated as native silver, argentite, and the sulpho-salts, by organic matter or by various sulphides.

The Economic Aspect of Geology 1915

To some extent also it is dissolved and reprecipitated, and is thus gathered into concretions and irregular nodular deposits in the residual clays.

The Economic Aspect of Geology 1915