The Chemistry of Powder and Explosives - Sciencemadness Dot Org

Potassium chlorate
Lactose
Paranitraniline led
Auramine
Chrysoidine
Indigo
SMOKES 123
Red
]
1
3
Yellow
33
24
34
Q
Green
33
26
15
26
Blue
The following (Allen F Clark) are illustrative of the perehlorate
colored smoke compositions which have come into use more
recently.
Potassium perchlorate.
Antimony sulfide
Rhodamine led
Malachite gieen
Methylene blue
Gum arable
Red Green
5 6
4 ' 5
10
10
I 1
7
5
8
Blue
Many other dyestuffs may be used Paranitraniline Yellow give?
a canary yellow smoke, and Flaming Red B gives a crimsoncolored
smoke by comparison with which the smoke from Paranitraniline
Red appears to be scarlet. None of the colored smoke
compositions arc adapted to indoor use. All the smokes arc unpleasant
and unwholesome.
White smoke is produced by burning a mixture of potassium
chlorate 3 parts, lactose 1, and finely powdered ammonium chloride
1. The smoke, which consists of finely divided ammonium
chloride, is not poisonous, and has found some use in connection
with the study of problems in ventilation.
For use in trench warfare, for the purpose of obscuring the
situation from the sight of the enemy, a very satisfactory dense
white or gray smoke is procured by burning a mixture of zinc
fiust and hexachloroethane. The mixture requires a strong starting
fire. The smoke consists largely of finely divided zinc chlo-
5
4
10 1