Question

What comon chemicals when combined makes black smoke.

Answer 1

Here're possible variants:
Magnesium powder – 19%
Hexachloroethane – 60%
Napthalene – 21%

Magnesium powder – 20%
Hexachloroethane – 60%
Napthalene – 20%

Hexachloroethane – 55.80%
Alpha Naphol – 14%
Athracene – 4.60%
Aluminum powder – 9.30%
Smokeless powder – 14%
Naphthalene – 2.30%

Black powder FFF – 50%
Potassium nitrate – 10%
Coal tar – 20%
Powdered charcoal – 15%
Paraffin – 5%