Hazora · Library
UN/NA 1779 · Formic acid
UN/NA 1779 · ERG 2024 · Guide 153
- UN/NA
- 1779
- Edition
- ERG 2024
ERG 2024 lists UN/NA 1779 (Formic acid) under Guide 153, titled “Substances - Toxic and/or Corrosive (Combustible)”.
Material name
1779 on a placard, orange panel or shipping paper
It can stand for either of two ERG 2024 entries: “Formic acid” and “Formic acid, with more than 85% acid”. Both use Guide 153, so the number alone is enough to find the guide. On a numbered orange panel, 1779 is the lower number (how to read an orange panel).
ERG 2024 markings for 1779
1779 is not highlighted in green (no Table 1 entry), and its guide number 153 has no P.
Entries near 1779
By number (yellow pages): before 1779 come UN/NA 1776 Fluorophosphoric acid, anhydrous (Guide 154); UN/NA 1777 Fluorosulfonic acid (Guide 137) and UN/NA 1778 Fluorosilicic acid (Guide 154); after it, UN/NA 1780 Fumaryl chloride (Guide 156); UN/NA 1781 Hexadecyltrichlorosilane (Guide 156) and UN/NA 1782 Hexafluorophosphoric acid (Guide 154).
By name (blue pages): “Formic acid” comes after Formalin (corrosive) (UN/NA 2209, Guide 153) and Formalin (flammable) (UN/NA 1198, Guide 132) and before Formic acid, with not less than 5% but less than 10% acid (UN/NA 3412, Guide 153) and Formic acid, with not less than 10% but not more than 85% acid (UN/NA 3412, Guide 153).
By name (blue pages): “Formic acid, with more than 85% acid” comes after Formalin (corrosive) (UN/NA 2209, Guide 153) and Formalin (flammable) (UN/NA 1198, Guide 132) and before Formic acid, with not less than 5% but less than 10% acid (UN/NA 3412, Guide 153) and Formic acid, with not less than 10% but not more than 85% acid (UN/NA 3412, Guide 153).
Guide 153 · Library
Guide 153 covers 168 UN/NA numbers. The 12 around 1779 in the guide’s number order: UN/NA 1711 Xylidines, liquid; UN/NA 1718 Acid butyl phosphate; UN/NA 1750 Chloroacetic acid, solution; UN/NA 1751 Chloroacetic acid, solid; UN/NA 1764 Dichloroacetic acid; UN/NA 1770 Diphenylmethyl bromide; UN/NA 1783 Hexamethylenediamine, solution; UN/NA 1793 Isopropyl acid phosphate; UN/NA 1803 Phenolsulfonic acid, liquid; UN/NA 1835 Tetramethylammonium hydroxide aqueous solution with more than 2.5% but less than 25% tetramethylammonium hydroxide; UN/NA 1839 Trichloroacetic acid; UN/NA 1847 Potassium sulfide, hydrated, with not less than 30% water of crystallization.
Source: ERG 2024 (U.S. DOT PHMSA, Transport Canada, SICT Mexico), for the initial phase of a transportation incident only. Hazora is not an official ERG publication and is not affiliated with or endorsed by these or any other government agencies.