WETTER-DYNAMMON. See [DYNAMMON].
*WETTEREN.—A gelatinised rifle smokeless powder made by the Cooppal Co. of Belgium. The following analyses were given in “Arms and Explosives,” 1917, p. 91—
| Date of Sample | 1892 | 1893 |
| Nitrocellulose, insoluble | 16·0 | 57·3 |
| ” soluble | 46·2 | 37·6 |
| Nitroglycerine | 27·3 | — |
| Shellac | — | 3·5 |
| Charcoal | 9·0 | — |
| Moisture | 1·5 | 1·6 |
WHITE GUNPOWDER is a mixture of—
| Potassium chlorate | 50 |
| Potassium ferrocyanide | 25 |
| Sugar | 25 |
It is not produced commercially, and, indeed, is too sensitive, but it is sometimes made in the laboratory. It has also been called Angendre’s powder, White German powder, American powder, and Baron and Cauvet’s powder.
WILHELMIT is a German blasting explosive of the [Cheddite] type. It consists of sodium or potassium chlorate hydrocarbon oil with a flash point not below 30° C., and carbohydrates. For use in coal mines neutral salts are added. It was introduced during the War.
WITHNELL POWDER.—A coal-mine explosive of the [Grisounite] type made by the Lancashire Explosives Co., which was on the old Permitted List—
| Ammonium nitrate | 89·5 |
| Trinitro-toluene | 5 |
| Flour | 5·5 |
WITTENBERGER WETTERDYNAMIT. See [SALIT].