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United Nations/North American Number Datasheet

UN/NA 1754

 8 - Corrosive material 6.1 - Poisonous materials Inhalation Hazard Zone B

Emergency Response Guidebook (ERG, 2008)

Material Names

  • Chlorosulfonic acid
  • Chlorosulfonic acid and Sulfur trioxide mixture
  • Chlorosulphonic acid
  • Chlorosulphonic acid and Sulphur trioxide mixture
  • Sulfur trioxide and Chlorosulfonic acid mixture
  • Sulphur trioxide and Chlorosulphonic acid mixture
 ERG book cover

Response Guide 137

Substances - Water-Reactive - Corrosive

 

Initial Isolation and Protective Action Distances

Small Spills
(From a small package or small leak)		 Large Spills
(From a large package or many small packages)
First
Isolate
in all Directions
(Feet)		 Then
Protect
persons Downwind during-		 First
Isolate
in all Directions
(Feet)		 Then
Protect
persons Downwind during-
Name of Material Day
(Miles)		 Night
(Miles)		 Day
(Miles)		 Night
(Miles)
Chlorosulfonic acid (when spilled on land) 100 0.1 0.1 100 0.2 0.3
Chlorosulfonic acid (when spilled in water) 100 0.1 0.3 200 0.6 1.8
Chlorosulfonic acid and Sulfur trioxide mixture (when spilled on land) 200 0.2 0.6 1000 1.8 3.6
Chlorosulfonic acid and Sulfur trioxide mixture (when spilled in water) 100 0.1 0.3 200 0.6 1.8
Chlorosulphonic acid (when spilled on land) 100 0.1 0.1 100 0.2 0.3
Chlorosulphonic acid (when spilled in water) 100 0.1 0.3 200 0.6 1.8
Chlorosulphonic acid and Sulphur trioxide mixture (when spilled on land) 200 0.2 0.6 1000 1.8 3.6
Chlorosulphonic acid and Sulphur trioxide mixture (when spilled in water) 100 0.1 0.3 200 0.6 1.8
Sulfur trioxide and Chlorosulfonic acid mixture (when spilled on land) 200 0.2 0.6 1000 1.8 3.6
Sulfur trioxide and Chlorosulfonic acid mixture (when spilled in water) 100 0.1 0.3 200 0.6 1.8
Sulphur trioxide and Chlorosulphonic acid mixture (when spilled on land) 200 0.2 0.6 1000 1.8 3.6
Sulphur trioxide and Chlorosulphonic acid mixture (when spilled in water) 100 0.1 0.3 200 0.6 1.8

Toxic-By-Inhalation Gases

When spilled in water, large amounts of Hydrogen chloride (HCl) may be produced.

Hazmat Table (49 CFR 172.101)

UN/NA Proper Shipping Name Hazard Class Labels Notes*

* There are three notes: (1) whether the displayed information is for domestic (U.S.) or international shipping (if neither is specifically indicated, it applies to both), (2) whether the proper shipping name must include one or more technical names of the hazardous material in parentheses, and (3) whether the hazardous material is an inhalation hazard.
UN Chlorosulfonic acid (with or without sulfur trioxide) 8 8, 6.1 Inhalation Hazard Zone B

  8 - Corrosive material

  6.1 - Poisonous materials

  Inhalation Hazard Zone B