If free hydrochloric acid be present, the evaporated residue shows a red colour; 1 mgrm.
It contains a very small quantity of free hydrochloric acid, or perhaps some acid esters, and liberates a little more on prolonged contact with water; but the total quantity liberated under reasonable conditions is very small.
If it be assumed that all of the chlorid present is in the form of free hydrochloric acid, each dose of the preparation contains the equivalent of about two-thirds of one Pharmacopeial dose of diluted hydrochloric acid.
The habitual absence of free hydrochloric acid in the gastric fluids in dilatation of the stomach due to carcinoma of this organ was noted by Von der Velden.
Free hydrochloric acid is also usually absent during the first twenty minutes to an hour after a meal.
Von der Velden therefore attributes to the presence or the absence of free hydrochloric acid in the gastric juice in these cases great diagnostic importance.
In other words, pepsin-proteolysis can proceed in the absence of free hydrochloric acid, although not at the same pace.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "free hydrochloric" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
