FIRE EXTINGUISHERS:
| I.— | Calcium chloride | 184 parts |
|---|---|---|
| Magnesium chloride | 57 parts | |
| Sodium chloride | 13 parts | |
| Potassium bromide | 22 parts | |
| Barium chloride | 3 parts | |
| Water to make | 1,000 parts | |
| Dissolve and fill into hand grenades. | ||
| II.— | Iron sulphate | 4 parts |
| Ammonium sulphate | 16 parts | |
| Water | 100 parts | |
| Mix, dissolve, and fill into flasks. | ||
| III.— | Sodium chloride | 430 parts |
| Alum | 195 parts | |
| Glauber salts | 50 parts | |
| Sodium carbonate, impure | 35 parts | |
| Water glass | 266 parts | |
| Water | 233 parts | |
| Mix, etc. | ||
| IV.— | Sodium chloride | 90 parts |
| Ammonium chloride | 45 parts | |
| Water | 300 parts | |
Mix, dissolve, and put into quart flasks of very thin glass, which are to be kept conveniently disposed in the dwelling rooms, etc., of all public institutions.
V.—Make 6 solutions as follows:
| a.— | Ammonium chloride | 20 parts |
|---|---|---|
| Water | 2,000 parts | |
| b.— | Alum, calcined and powdered | 35 parts |
| Water | 1,000 parts | |
| c.— | Ammonium sulphate, powdered | 30 parts |
| Water | 500 parts | |
| d.— | Sodium chloride | 20 parts |
| Water | 4,000 parts | |
| e.— | Sodium carbonate | 35 parts |
| Water | 500 parts | |
| f.— | Liquid water glass | 450 parts |
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Mix the solutions in the order named and to the mixture, while still yellow and turbid, add 2,000 parts of water, and let stand. When the precipitate has subsided fill off the clear liquid into thin glass (preferably blue, to deter decomposition) containers each of 3 pints to a half gallon capacity.
| VI.— | Calcium chloride | 30 parts |
|---|---|---|
| Magnesium chloride | 10 parts | |
| Water | 60 parts | |
| VII.— | Sodium chloride | 20 parts |
| Ammonium chloride | 9 parts | |
| Water | 71 parts | |
| VIII.— | Sodium carbonate | 16 parts |
| Sodium chloride | 64 parts | |
| Water | 920 parts |
The most effective of all extinguishers is ammonia water. It is almost instantaneous in its effect, and a small quantity only is required to extinguish any fire. Next in value is carbonic acid gas. This may be thrown from siphons or soda-water tanks. The vessel containing it should be thrown into the fire in such a way as to insure its breaking.
Dry Powder Fire Extinguishers.
| I.— | Alum | 24 parts |
|---|---|---|
| Ammonium sulphate | 52 parts | |
| Ferrous sulphate | 4 parts | |
| II.— | Sodium chloride | 8 parts |
| Sodium bicarbonate | 6 parts | |
| Sodium sulphate | 2 parts | |
| Calcium chloride | 2 parts | |
| Sodium silicate | 2 parts | |
| III.— | Sodium chloride | 6 parts |
| Ammonium chloride | 6 parts | |
| Sodium bicarbonate | 8 parts | |
| IV.— | Ammonium chloride | 10 parts |
| Sodium sulphate | 6 parts | |
| Sodium bicarbonate | 4 parts |