I'm sorry. I don't think I have ever read of chemical warheads being used on SCUDS although I know they can be fitted to them. Can you provide me with some information on this practice? It was not used by Iraq against Israel, I am fairly sure.

A

A couple of references:

""The Iraqis had four versions: Scud itself (180-km range), longer-range Scud (half warhead weight, extra range attained by burning all propellant immediately rather than steadily through the flight of the missile), Al Hussein (650-km, attained by reducing warhead weight to 250 kg and increasing the fuel load by 15 percent), and Al Abbas (800-km, achieved by reducing warhead weight to 125 kg, with 30 percent more fuel)." http://hypertextbook.com/facts/2003/YuenWong.shtml

The Iraqis developed four versions: Scud, longer-range Scud, Al Hussein, and Al Abbas. Apart from the almost unmodified weapon these were not successful missiles as they tended to break up in flight and had small warheads.


General Characteristics
DIA SS-1b SS-1c SS-1d SS-1e
NATO Scud-A Scud-B Scud-C Scud-D
Deployment Date 1957 1965 1965 1980s
Withdrawn 1978
Range 130 km 300 km 575-600km 700 km
CEP (NATO estimate) 4,000 m 900 m 900 m 50 m

http://www.campusprogram.com/reference/en/wikipedia/s/sc/scud.html