Page:Transactions of the Geological Society, 1st series, vol. 2.djvu/112

102 § 11. Preliminary Experiments with Reagents.

a. Tincture of red cabbage—no change produced.

b. Litmus paper—no change.

c. Turmeric paper—no change.

d. Lime water—no change.

e. Nitrate of barytes—a considerable white precipitate.

f. Oxalate of ammonia—a white precipitate.

g. Ammonia—a slight turbidness.

i. Succinate of ammonia—no change.

k Tincture of galls, a turbidness, but no blackness.

The brine, therefore, does not contain any uncombined acid, (by Exp. a. b. d.) nor uncombined or carbonated alkali, (by Exp. a. c.) nor earthy carbonate or oxide of iron, (by Exp. m.) nor iron in any other state of combination, (by Exp. i. k. l.)

As a farther proof that it does not contain either an earthy carbonate, or oxide of iron, the crust left at the bottom of the pan