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United Nations/North American Number Datasheet

UN/NA 9191

5.1 - Oxidizer 6.1 - Poison

Emergency Response Guidebook (ERG, 2016)

Material Names

  • Chlorine dioxide, hydrate, frozen
ERG book cover

Response Guide 143

Oxidizers (Unstable) Oxidantes (Inestables) Oxydants (Instables)

 

ERG Table 1: Initial Isolation and Protective Action Distances

Name of Material Small Spills
(from a small package or small leak)
Large Spills
(from a large package or many small packages)
First
Isolate
in all Directions
Then Protect Downwind First
Isolate
in all Directions
Then Protect Downwind
Day Night Day Night
Chlorine dioxide, hydrate, frozen (when spilled in water) 100 ft 0.1 mi 0.1 mi 100 ft 0.1 mi 0.3 mi

ERG Table 2: Water-Reactive Materials which Produce Toxic-By-Inhalation Gases

When spilled in water, large amounts of Chlorine (Cl2) 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.
NA Chlorine dioxide, hydrate, frozen 5.1 5.1, 6.1 Domestic (U.S.)

  5.1 - Oxidizer

  6.1 - Poison