Sodium Phosphate Merck.—C.P.

Colorl. cryst.—Sol. in about 20 parts water.—Uses: Chronic rheumatism, stimulant of biliary secretion, mild laxative, and vesical calculi.—Dose: 5—40 grn.; as laxative, 1/2—1 ounce.

Sodium Pyrophosphate Merck.—U.S.P.

Sol. in 10 parts water.—Uses: Lithiasis.—Dose: 5—40 grn.

Sodium Salicylate Merck—U.S.P.

Sol. in 1 part water, 6 parts alcohol; glycerin.—Dose: 5—40 grn.—Max. D.: 60 grn.—Incompatibles: Ferric salts.

Merck's Sodium Salicylate is the only brand which yields a clear and colorless solut.

Sodium Salicylate Merck.—From Oil Wintergreen.

Uses, etc., as above.

Sodium Santoninate Merck.