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United Nations/North American Number Datasheet

UN/NA 1911

 2.1 - Flammable gas 2.3 - Poisonous gas Potential Inhalation Hazard (Special Provision 5)

Emergency Response Guidebook (ERG, 2020)

A caution icon. The ERG recommendations are developed for use during the initial phase of transportation incidents; they are not intended for spills at facilities.

Material Names

  • Diborane
  • Diborane, compressed
  • Diborane mixtures
 ERG book cover

Response Guide 119

Gases - Toxic - Flammable Gases - Tóxicos - Inflamables Gaz - Toxiques - Inflammables

 

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
Diborane 200 ft 0.2 mi 0.7 mi 1000 ft 1.0 mi 2.9 mi
Diborane, compressed 200 ft 0.2 mi 0.7 mi 1000 ft 1.0 mi 2.9 mi
Diborane mixtures 200 ft 0.2 mi 0.7 mi 1000 ft 1.0 mi 2.9 mi

The ERG doesn't predict that large amounts of toxic-by-inhalation gases will be produced if this material is spilled in water.

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 Diborane mixtures 2.1 2.1 Domestic (U.S.), Potential Inhalation Hazard (Special Provision 5)
UN Diborane 2.3 2.3, 2.1 Inhalation Hazard Zone A

  2.1 - Flammable gas

  2.3 - Poisonous gas

  Potential Inhalation Hazard (Special Provision 5)