Chlorine

CAS RN: 7782-50-5

Protective Distance

IF THERE IS A FIRE, or IF A FIRE IS INVOLVED, go directly to the ERG guide page and use the evacuation information shown under PUBLIC SAFETY.


Initial Isolation and Protective Action Distances
ID
No.
NAME OF MATERIALSmall Spills
(From a small package or small leak from a large package)
Large Spills
(From a large package or many small packages)
First ISOLATE in all DirectionsThen PROTECT persons Downwind duringFirst ISOLATE in all DirectionsThen PROTECT persons Downwind during
DayNightDayNight
1017 Chlorine 200 ft 0.2 mi 0.7 mi See Table 3 Below

UN1017 Chlorine: Large Spills

Container TypeRail tank car
First ISOLATE in all Directions.3000 ft
Then PROTECT downwind
DAYNIGHT
Low
(< 6 mph)
Moderate
(6 - 12 mph)
High
(> 12 mph)
Low
(< 6 mph)
Moderate
(6 - 12 mph)
High
(> 12 mph)
6.2 mi4.0 mi3.2 mi7+ mi5.6 mi4.2 mi

Container TypeHighway tank truck or trailer
First ISOLATE in all Directions.2000 ft
Then PROTECT downwind
DAYNIGHT
Low
(< 6 mph)
Moderate
(6 - 12 mph)
High
(> 12 mph)
Low
(< 6 mph)
Moderate
(6 - 12 mph)
High
(> 12 mph)
3.6 mi2.1 mi1.8 mi4.3 mi3.1 mi2.5 mi

Container TypeMultiple ton cylinders
First ISOLATE in all Directions.1000 ft
Then PROTECT downwind
DAYNIGHT
Low
(< 6 mph)
Moderate
(6 - 12 mph)
High
(> 12 mph)
Low
(< 6 mph)
Moderate
(6 - 12 mph)
High
(> 12 mph)
1.3 mi0.8 mi0.6 mi2.5 mi1.5 mi0.8 mi

Container TypeMultiple small cylinders or single ton cylinder
First ISOLATE in all Directions.500 ft
Then PROTECT downwind
DAYNIGHT
Low
(< 6 mph)
Moderate
(6 - 12 mph)
High
(> 12 mph)
Low
(< 6 mph)
Moderate
(6 - 12 mph)
High
(> 12 mph)
0.9 mi0.5 mi0.3 mi1.8 mi0.8 mi0.4 mi


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