Читать книгу Henley's Formulas, Recipes and Processes (Applied Chemistry) - Various - Страница 19
Glue For Tablets.—
Оглавление| I.— | Glue | 3 1/2 ounces |
|---|---|---|
| Glycerine | 8 ounces | |
| Water, a sufficient quantity. |
Pour upon the glue more than enough water to cover it and let stand for several hours, then decant the greater portion of the water; apply heat until the glue is dissolved, and add the glycerine. If the mixture is too thick, add more water.
| II.— | Glue | 6 ounces |
|---|---|---|
| Alum | 30 grains | |
| Acetic acid | 1/2 ounce | |
| Alcohol | 1 1/2 ounces | |
| Water | 6 1/2 ounces |
Mix all but the alcohol, digest on a water bath till the glue is dissolved, allow to cool and add the alcohol.
| III.— | Glue | 5 ounces |
|---|---|---|
| Water | 1 ounce | |
| Calcium chloride | 1 ounce |
Dissolve the calcium chloride in the water, add the glue, macerate until it is thoroughly softened, and then apply heat until completely dissolved.
IV.—Glue, 1 pound; glycerine, 4 ounces; glucose syrup, 2 tablespoonfuls; tannin, 1/10 ounce. Use warm, and give an hour to dry and set on the pads. This can be colored with any aniline dye.
