Part 34

Date of Permit 10-2-14 Nitroglycerine 19 Collodion cotton 1 Trinitro-toluene 4 Potassium perchlorate 38 Wood meal 10 Ammonium oxalate 28

Limit charge 20 oz. Power (swing of ballistic pendulum) 2·50”

The permit has been repealed.

=SWALITE.=--A coal-mine explosive made by the Cotton Powder Co., Ltd. It was on the old Permitted List--

Nitroglycerine 59·5 Collodion cotton 4 Potassium nitrate 17 Wood meal 6 Ammonium oxalate 13·5

=SYNDITE.=--A coal-mine explosive formerly on the Permitted List. It was made by the Carbonite Syndicate in Germany--

Nitroglycerine 11 Collodion cotton 0·2 Ammonium nitrate 46·3 Sodium nitrate 8 Glycerine 3·5 Starch 4 Sodium chloride 27

Limit charge over 40 oz. Power (swing of ballistic pendulum) 2·22”

The permit was repealed on 21-9-16.

*Poudre =T= is a condensed smokeless shot-gun powder manufactured by the French Government. It is made from guncotton, CP_1, to which 2 per cent. of saltpetre is added, gelatinised with acetone. The dough is pressed into strips which are rolled down to a thickness of 0·15 mm. and cut into small squares of 1·5 mm. side. The powder is then steeped in water to dissolve out the greater part of the potassium nitrate, dried, and finally drummed with a little gum and graphite to make it more progressive. This powder is superior to the other French sporting-powders, but is more expensive. The charge for a 16-bore cartridge is 1·9 grammes.

=TELSIT A= is a blasting explosive made at the Nobel Works in Switzerland. It consists of ammonium nitrate, nitrated toluene and aluminium powder.

Gelatine-Telsit contains ammonium nitrate, blasting gelatine and liquid trinitro-toluene, also gelatinised with collodion cotton.

Special-Gelatine-Telsit differs from this in having part of the ammonium nitrate replaced by sodium nitrate.

=TERRIT= is a plastic blasting explosive made in Sweden, and consisting of ammonium perchlorate, sodium nitrate and liquid dinitro-toluene, gelatinised with collodion cotton--

Ammonium perchlorate 43 Sodium nitrate 28 Dinitro-toluene (liquid) 27·8 Collodion cotton 1·2

It is difficult to detonate.

=TETRYL= is the name usually given to tetranitro-methyl-aniline, the strictly scientific designation of which is trinitro-phenyl- methyl-nitramine--

CH3 NO2 \ / \ / N / \ NO2 | | NO2 | | \ / NO_2

It is used extensively as an intermediate detonating agent for high-explosive shell, as it is somewhat more sensitive than most of the explosives used, and can consequently be detonated by a small charge of fulminate. It is also called C. E.

Grisou-=TETRILITE=. See Favier Powder.

=TEUTONIT= is a German Favier explosive containing not less than 70 per cent. of ammonium nitrate, not more than 5 per cent. of flour or potato meal, and not more than 15 per cent. of aromatic nitro- and dinitro-compounds. It may also contain neutral salts.

=TEUTONITE= was a name given occasionally to White Gunpowder (q. v.).

=THAMES POWDER= is a coal-mine explosive on the Permitted List made by the British Explosives Syndicate, Ltd.--

No. 2. Date of Permit 22-6-14 28-1-15

Nitroglycerine 6·5 10 Ammonium nitrate 55 59 Potassium nitrate 10 -- Wood meal 4·5 10 Starch 5 -- Ammonium oxalate 19 -- Sodium chloride -- 21

Limit charge 32 22 Power (swing of ballistic pendulum) 2·78 2·59”

Including not more than 2 per cent. of magnesium carbonate.

=THERMIT= is not an explosive, although in some respects it resembles one. It generally consists of a mixture of about three parts oxide of iron with one part of aluminium powder, but other oxides and other metals are sometimes used. When initiated by strong heat in one place a reaction sets in with great evolution of heat and the formation of a white-hot mass of molten iron and slag. It differs from an explosive in that no gas is formed and the reaction is comparatively slow. It is used for filling incendiary bombs and for many industrial purposes.