Syria opposition claims has evidence of chlorine gas attack
(Reuters) - Syrian opposition activists have posted photographs and video that they say shows an improvised chlorine bomb to back up claims that President Bashar al-Assad's forces used chemical weapons in two attacks last week.
Rebels and the government have blamed each other for the alleged poison gas attacks on Friday and Saturday on rebel-held Kfar Zeita village in the central province of Hama, 125 miles(201 km) north of Damascus.
Both sides said chlorine gas - a deadly agent widely used in World War I - had been used. The gas, which has industrial uses, is not on a list of chemical weapons that Assad declared to the global chemical weapons watchdog last year for destruction.
It is a so-called dual-use chemical, which would have to be declared to the Organisation for the Prohibition of Chemical Weapons (OPCW), a spokesman said.
http://uk.reuters.com/article/2014/04/14/uk-syria-crisis-chemicals-idUKBREA3D0GK20140414
For Chlorine gas add Sodium hypochlorite , aka industrial bleach , to hydrochloric acid - that's chemistry stuff for 14 year olds.