The metal of commerce. The incompatibles of the salts of sodium do not depend upon the sodium but upon the other radicles present and may be found by looking up these.

1Soda Tartarata. Sodium Potassium Tartarate. (Rochelle Salt.) Dose, 120 - 240 grs.; 8 - 16 gms.

(CHOH)2COONa.COOK, 4H20. Crystals, colourless, with a saline taste. Soluble 1 in 1 1/2 of water, insoluble in alcohol.

1Pulvis Sodę Tartaratę Effervescens. (Seidlitz Powder.) Dose, the two powders mixed in water. (1)-120; Sodium Bicarbonate, 40 grs. (in blue paper). (2) Tartaric Acid, dried, 38grs. (in white paper).

2Sodii Arsenas. Sodium Arsenate. Dose, 1/40 - 1/10 gr.; 1.5 - 6 mgms.

An anhydrous disodium hydrogen arsenate, Na2HAsO4. A white powder. Soluble 1 in 6 of water, (solution has an alkaline reaction). Slightly soluble in alcohol.

3Liquor Sodii Arsenatis. Dose, 2 - 8 min.; 0.1 - 0.8 c.c. - 1; Water, 100. An alkaline solution.

2Sodii Benzoas. Sodium Benzoate. Dose, 5 - 30 grs.; 1/4 - 2 gms. A white, crystalline or amorphous powder, inodorous, or with a faint odour of benzoin, and an unpleasant sweetish saline taste. Soluble 1 in 2 of water, 1 in 24 of alcohol.

1Sodii Bicarbonas. (Baking Soda). Dose, 5 - 30 grs.; 1/4 - 2 gms. NaHCO3. In powder or small, white crystals, with a saline taste. Soluble 1 in 11 of water, insoluble in alcohol.

3Trochiscus Sodii Bicarbonatis. 3 grs. with the Rose Basis. 1Sodii Bromidum. Sodium Bromide. Dose, 5 - 30 grs.; 1/4 -2 gms.

NaBr. Small, white crystals somewhat deliquescent, inodorous, with a saline taste. Soluble 1 in 1.2 of water, 1 in 16 of alcohol.

1Sodii Carbonas. (Washing Soda). Dose, 5 - 30 grs.; 1/2 - 2 gms. Na2CO3,10H2O. Transparent, colourless crystals, efflorescent, with a harsh taste, and a strongly alkaline reaction. Soluble 1 in 2 of water. 10 parts neutralise 4.9 parts of citric acid or 5.75 parts of tartaric acid.

1Sodii Carbonas Exsiccatus. Dose, 3 - 10 grs.; 2 - 6 dgms. Sodium carbonate freed from its water of crystallization by heat. A white powder. 53 gr. equivalent to 14.3 gr. of crystallized salt.

1Sodii Chloridum. Purified common salt.

2Sodii Citro-tartras Effervescens. Dose, 60 - 120 grs.; 4 - 8 gms. Sodium Bicarbonate, 51; Tartaric Acid, 27; Citric Acid, 18; Sugar, 15.

2Sodii Hypophosphis. Dose, 3 - 10 grs.; 2 - 6 dgms. NaPH202. A white deliquescent granular salt, with a bitter nauseous taste. Soluble, 1 in 1 of water, 1 in 20 of alcohol.

1Sodii Iodidum. Dose, 5 - 20 grs.; 3 - 12 dgms. Nal. A dry white crystalline powder, with a saline and somewhat bitter taste. Soluble 1 in 0.55 of water, 1 in 3 of Alcohol, 1 in 1 of glycerin.

1Sodii Nitris. Dose, 1 - 2 grs.; 6 - 30 cgms. A white deliquescent crystalline powder. Soluble 1 in 1.2 of water, 1 in 50 of alcohol.

1Sodii Phosphas. Dose, if repeated, 30 - 120 grs. 2 - 8 gms.; for a single administration, 1/4 - 1/2 oz.; 7 - 14 gms.

Di-sodium-hydrogen-phosphate, Na2HP04, 12H20. Transparent, colourless crystals, efflorescent, with an alkaline reaction and a saline taste. Soluble 1 in 6 of water, insoluble in alcohol.

2Sodii Phosphas Effervescens. Dose, if repeated 60 - 120 grs. 4 - 8 gms.: for a single administration, 1/4 - 1/2 oz.; 7 - 14 gms. - 50; Sodium Bicarbonate, 50; Tartaric Acid, 27; Citric Acid, 18. The sodium phosphate should be dessicated before using.

1Sodii Salicylas. Dose, 10 - 30 grs.; 1/2 - 2 gms. In small, colourless scales or crystals, with a pearly lustre; taste sweetish, but unpleasantly saline, odourless. Soluble 1 in 1 of water, 1 in 5 of alcohol.

1Sodii Sulphas. Dose, if repeated, 30 - 120 grs.; 2 - 8 gms.: for a single administration, 1/4 - 1/2 oz.; 7 - 14 gms.

Transparent crystalline, efflorescent salt, with a bitter saline taste. Soluble 1 in 2.8 of water at 15°C.; 1 in 0.3 at 33° C.; insoluble in alcohol.

2Sodii Sulphas Effervescens. Dose, if repeated, 60 - 120 grs.; 4 - 8 gms.: for a single administration, 1/4 - 1/2 oz. ; 7 - 14 gu.s. - 50; Sodium Bicarbonate, 50; Tartaric Acid, 27; Citric Acid, 18. The sodium sulphate should be dessicated before using.

2Sodii Sulphis. Dose, 5 - 20 grs.; 3 - 12 dgms. Na2S03, 7H2O. Colourless, transparent, efflorescent crystals, inodorous, with a saline and sulphurous taste. Soluble 3 in 4 of water, insoluble in alcohol.

2Sodii Sulphocarbolas. Sodium Sulphocarbolate. Dose, 5 - 15 grs.; 3 - 10 dgms.

Sodium phenol-para-sulphonate, C3H4OH.SO2ONa,2H2O. Colourless, transparent crystals, with a saline and somewhat bitter taste. Soluble 1 in 6 of water.