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Reactions between the chemicals in column 1 and 2 can
produce the highly toxic gases shown in
column 3 below.
Column 1 |
Column 2 |
Highly toxic gas produced |
| Arsenic compounds |
Any reducing agent |
Arsine |
| Azides |
Acidic compounds |
Hydrogen azide |
| Cyanides |
Acidic compounds |
Hydrogen cyanide |
| Hypochlorites |
Acidic compounds |
Chlorine or hypochlorous acid |
| Nitrates |
Sulfuric acid |
Nitrogen dioxide |
| Nitric acid |
Copper, brass, any heavy metals |
Nitrogen dioxide (nitrous fumes) |
| Nitrites |
Acidic compounds |
Nitrous fumes |
| Phosphorus |
Caustic alkalis or reducing agents |
Phosphine |
| Selenides |
Reducing agents |
Hydrogen selenide |
| Sulfides |
Acidic compounds |
Hydrogen sulfide |
| Tellurides |
Reducing agents |
Hydrogen telluride |
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