MONOBEL, NOS. 1 to 7 are on the American Permissible List. Of these, Nos. 4 and 5 are low-freezing explosives, containing a small percentage of nitro-toluene or similar substance; Nos. 3 and 5 are less violent than the others.
MONOBEL POWDER was the predecessor of the above and was on the old Permitted List. It is now no longer “permitted.”
| Ammonium nitrate | 80 |
| Nitroglycerine | 10 |
| Wood meal | 10 |
*MULLERITE.—A shot-gun powder made by the Muller Co. in Belgium. It is a gelatinised dense powder in the form of green leaflets, and the charge for a 12-bore cartridge was 33 grains. It contains no inorganic salts.
EXPLOSIFS N. See [Favier] Explosives.
NAPHTHALIT.—A German chlorate explosive introduced during the War. It contains not more than 80 per cent. of potassium chlorate, and aromatic hydrocarbons, such as naphthalene, and not more than 12 per cent. of nitro-hydrocarbons, but no trinitro-compounds; also paraffins, fatty oils, flour or other organic substance. It may contain also alkali chlorides, and not more than 4 per cent. of [blasting gelatine].
The prefixes Gesteins- and Wetter- are applied according as the explosive is intended for rock or coal mines.
Grisou-NAPHTALITE. See [FAVIER Explosives].
NATIONALITE.—A coal-mine explosive of the [Grisounite] class made by the National Explosives Co., Ltd. The composition, which was on the old Permitted List, was—
| Ammonium nitrate | 92 |
| Di- and Trinitro-toluene | 8 |