Hazora · Library
UN/NA 1810 · Phosphorus oxychloride
UN/NA 1810 · ERG 2024 · Guide 137
- UN/NA
- 1810
- Edition
- ERG 2024
ERG 2024 lists UN/NA 1810 (Phosphorus oxychloride) under Guide 137, titled “Substances - Water-Reactive - Corrosive”.
Material name
1810 on a placard, orange panel or shipping paper
It points to the ERG 2024 entry “Phosphorus oxychloride” and to Guide 137. On a numbered orange panel, 1810 is the lower number (how to read an orange panel).
ERG 2024 markings for 1810
1810 is highlighted in green, so ERG 2024 Table 1 (Initial Isolation and Protective Action Distances) has two entries for it: “Phosphorus oxychloride (when spilled on land)” and “Phosphorus oxychloride (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 gas produced: HCl (hydrogen chloride). Its guide number 137 has no P.
Entries near 1810
By number (yellow pages): before 1810 come UN/NA 1807 Phosphorus pentoxide (Guide 137); UN/NA 1808 Phosphorus tribromide (Guide 137) and UN/NA 1809 Phosphorus trichloride (Guide 137); after it, UN/NA 1811 Potassium hydrogen difluoride, solid (Guide 154); UN/NA 1812 Potassium fluoride, solid (Guide 154) and UN/NA 1813 Caustic potash, solid (Guide 154).
By name (blue pages): “Phosphorus oxychloride” comes after Phosphorus oxybromide, molten (UN/NA 2576, Guide 137) and Phosphorus oxybromide, solid (UN/NA 1939, Guide 137) and before Phosphorus pentabromide (UN/NA 2691, Guide 137) and Phosphorus pentachloride (UN/NA 1806, Guide 137).
Other names starting with “Phosphorus”: Phosphorus heptasulphide, free from yellow and white phosphorus (UN/NA 1339, Guide 139); Phosphorus pentafluoride (UN/NA 2198, Guide 125); Phosphorus pentafluoride, adsorbed (UN/NA 3524, Guide 173); Phosphorus pentasulfide, free from yellow and white phosphorus (UN/NA 1340, Guide 139); Phosphorus sesquisulfide, free from yellow and white phosphorus (UN/NA 1341, Guide 139) and Phosphorus trioxide (UN/NA 2578, Guide 157).
Guide 137 · Library
Guide 137 covers 32 UN/NA numbers. The 12 around 1810 in the guide’s number order: UN/NA 1758 Chromium oxychloride; UN/NA 1777 Fluorosulfonic acid; UN/NA 1806 Phosphorus pentachloride; UN/NA 1807 Phosphorus pentoxide; UN/NA 1808 Phosphorus tribromide; UN/NA 1809 Phosphorus trichloride; UN/NA 1817 Pyrosulfuryl chloride; UN/NA 1827 Stannic chloride, anhydrous; UN/NA 1828 Sulfur chlorides; UN/NA 1829 Sulfur trioxide, stabilized; UN/NA 1830 Sulfuric acid; UN/NA 1831 Sulfuric acid, fuming.
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.