GRANATFUELLUNG (i. e. Shell-filling) is a name given by the Germans to certain high explosives used for filling shell. Granatfuellung C/88 is picric acid, and C/02 is trinitro-toluene. See [Fuellpulver]. Other substances used in German shell and bombs are trinitro-anisole, dinitro-benzene, hexanitro-diphenylamine and hexanitro-diphenyl sulphide, otherwise picryl sulphide.
GRISOUNITE.—A French coal-mine explosive. See [FAVIER Explosives].
GRISOUTINE or GRISOU-DYNAMINE is the only explosive except Grisounite allowed in the more dangerous French coal mines. It consists of ammonium nitrate mixed with [blasting gelatine]. As the State monopoly does not extend to explosives containing nitroglycerine, it is made by private firms, but the compositions are regulated by the “Commission des Substances Explosives,” which in 1911 resolved that they should be uniformly as follows—
Couche | Couche au Salpêtre. | Roche. | Roche au Salpêtre. | |
| Nitroglycerine | 12 | 12 | 29 | 29 |
| Collodion cotton | 0·5 | 0·5 | 1 | 1 |
| Ammonium nitrate | 87·5 | 82·5 | 70 | 65 |
| Potassium nitrate | — | 5 | — | 5 |
The calculated temperatures of explosion of the Grisoutines couches are below 1500°, and those of the Grisoutines roches below 1900°. The addition of 5 per cent. of potassium nitrate is found to increase the safety.
There are a number of explosives of this type made in other countries also, but they usually contain small proportions of combustible substances such as wood meal, and nitro-bodies such as trinitro-toluene. Of British explosives of this type, mention may be made of [Monobel], [Super-Excellite] and [Monarkite]. German explosives of this sort include [Salit], [Tremonit], [Donarit], [Ammon-Karbonit] and [Astralit].
On the Belgian list of Explosifs S.G.P. is Grisoutine II., which is identical in composition with Dynamite anti-grisouteuse V.
GRISOUTITE.—A Belgian coal-mine explosive—
| Nitroglycerine | 44 |
| Magnesium sulphate | 44 |
| Cellulose | 12 |
Charge limite | 300 g. |
GUARDIAN.—American coal-mine explosives. Nos. 2, 2X, 3 and 3X are ammonium nitrate explosives, whereas Guardian A and Guardian Coal Powder B are nitroglycerine explosives.