In the United Kingdom this is “authorised” but not “permitted” for use in dangerous mines.
FLOBERT ammunition consists of small cartridges, like detonators, charged with a small quantity of mercury fulminate, and some antimony sulphide and potassium chlorate. It is used for target practice and shooting small birds.
FOERDER SICHERHEITSSPRENGSTOFF.—A German coal-mine explosive containing ammonium nitrate, not more than 4 per cent. of blasting gelatine, mono- and di-nitro-aromatic compounds, vegetable meal and neutral salts.
FOERDIT.—A German coal-mine explosive containing nitroglycerine gelatinised or ungelatinised, carbohydrates, glycerine, nitro-compounds, inorganic nitrates and sodium or potassium chloride.
Ammon-Foerdit is a similar mixture, except that it contains a larger percentage of ammonium nitrate and no other inorganic nitrates. The nitroglycerine is gelatinised, and there is a little diphenylamine. The following are examples of these two explosives—
| Foerdit. | Ammon-Foerdit. | |
| Nitroglycerine | 25·5 | 3·8 |
| Collodion cotton | 1·5 | 0·2 |
| Ammonium nitrate | 37 | 85 |
| Nitro-toluene | 5 | — |
| Dextrine or flour | 4 | 4 |
| Glycerine | 3 | 2 |
| Diphenylamine | — | 1 |
| Potassium chloride | 24 | 4 |
Ammon-Foerdit F, which has been introduced recently, contains up to 10 per cent. of potassium perchlorate and is similar to [Astralit V].
FORCITE.—A variety of [gelatine dynamite] or [gelignite] made in Belgium. It contains [blasting gelatine] 36 to 64 per cent., sodium or ammonium nitrate, wood meal, magnesia and sometimes bran.
An American explosive of the same name is a dynamite containing wood tar—