Hazora · Library
UN/NA 1836 · Thionyl chloride
UN/NA 1836 · ERG 2024 · Guide 137
- UN/NA
- 1836
- Edition
- ERG 2024
ERG 2024 lists UN/NA 1836 (Thionyl chloride) under Guide 137, titled “Substances - Water-Reactive - Corrosive”.
Material name
1836 on a placard, orange panel or shipping paper
It points to the ERG 2024 entry “Thionyl chloride” and to Guide 137. On a numbered orange panel, 1836 is the lower number (how to read an orange panel).
ERG 2024 markings for 1836
1836 is highlighted in green, so ERG 2024 Table 1 (Initial Isolation and Protective Action Distances) has two entries for it: “Thionyl chloride (when spilled on land)” and “Thionyl chloride (when spilled in water)”. Hazora shows those distances in the app, not on this page. One entry covers a spill on land, the other a spill in water. “When spilled in water” means the material produces large amounts of toxic inhalation hazard (TIH) gases when spilled in water. Table 2 (Water-Reactive Materials Which Produce Toxic Gases) lists the gases produced: HCl (hydrogen chloride) and SO2 (sulfur dioxide). Its guide number 137 has no P.
Entries near 1836
By number (yellow pages): before 1836 come UN/NA 1833 Sulfurous acid (Guide 154); UN/NA 1834 Sulfuryl chloride (Guide 137) and UN/NA 1835 Tetramethylammonium hydroxide aqueous solution with more than 2.5% but less than 25% tetramethylammonium hydroxide (Guide 153); after it, UN/NA 1837 Thiophosphoryl chloride (Guide 157); UN/NA 1838 Titanium tetrachloride (Guide 137) and UN/NA 1839 Trichloroacetic acid (Guide 153).
By name (blue pages): “Thionyl chloride” comes after Thioglycolic acid (UN/NA 1940, Guide 153) and Thiolactic acid (UN/NA 2936, Guide 153) and before Thiophene (UN/NA 2414, Guide 130) and Thiophosgene (UN/NA 2474, Guide 156).
Guide 137 · Library
Guide 137 covers 32 UN/NA numbers. The 12 around 1836 in the guide’s number order: UN/NA 1828 Sulfur chlorides; UN/NA 1829 Sulfur trioxide, stabilized; UN/NA 1830 Sulfuric acid; UN/NA 1831 Sulfuric acid, fuming; UN/NA 1832 Sulfuric acid, spent; UN/NA 1834 Sulfuryl chloride; UN/NA 1838 Titanium tetrachloride; UN/NA 1939 Phosphorus oxybromide, solid; UN/NA 2443 Vanadium oxytrichloride; UN/NA 2444 Vanadium tetrachloride; UN/NA 2503 Zirconium tetrachloride; UN/NA 2576 Phosphorus oxybromide, molten.
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.