Pasta Methylis Salicylatis Composita, B.P.C. Compound Methyl Salicylate Paste.
Botanical name:
Format explanation
Related entry: Methyl Salicylate
Synonyms.—Pasta Analgesica; Analgesic Paste.
| Methyl Salicylate, by weight | 50.00 | | | 8 ounces |
| Menthol | 10.00 | | | 1 oz. 262 ½ gr. |
| Stearic Acid | 10.00 | | | 1 oz. 262 ½ gr. |
| Sodium Carbonate | 1.20 | | | 54 grains |
| Glycerin | 1.20 | | | 92 minims |
| Distilled Water, a sufficient quantity | |||
Melt the stearic acid on a water-bath, add the sodium carbonate dissolved in the glycerin and 4 (300 minims) of hot distilled water, stir until effervescence ceases, heat until a clear liquid is obtained, and make up the weight to 40 (6 ounces 175 grains) with warm distilled water; pour the mixture into a wide-mouthed bottle containing the methyl salicylate, in which the menthol has been dissolved, shake until a creamy product is obtained and transfer to collapsible tubes.
