bilby
Fair dinkum thinkum
- Joined
- Mar 6, 2007
- Messages
- 35,740
- Gender
- He/Him
- Basic Beliefs
- Strong Atheist
Probably.Question: what could be the source of the red smoke from the Nasrallah strike?
Nitrogen dioxide?
Most bulk explosives contain plenty of nitrogen, so it's common to see red smoke from large blasts.
Ammonium Nitrate is used in a lot of cheap bombs, usually with an additive such as Aluminium to scavenge the excess oxygen (Amonal). Home made stuff (and mining explosives) sometimes use diesel fuel for this purpose (Anfo).
Other Nitrates and even more exotic nitrogen containing species are also common oxidants for stuff that goes bang.
For shells and bombs, it's usually not important to avoid smoke. Propellants typically need to be smokeless as far as possible, so as to avoid giving away the location of the shooter (whether artillery, or small-arms, or even rockets). When they don't, it's generally cheaper and easier to use explosives that generate smoke.
Smoke can also appear red if backlit, just due to scattering. But that pic looks to me like NO2 is the colouring agent - compare the 2020 Beirut Ammonium Nitrate silo explosion, which also produced a very red smoke cloud.