UN/NA 1809 · Phosphorus trichloride

Material name

1809 on a placard, orange panel or shipping paper

It points to the ERG 2024 entry “Phosphorus trichloride” and to Guide 137. On a numbered orange panel, 1809 is the lower number (how to read an orange panel).

ERG 2024 markings for 1809

1809 is highlighted in green, so ERG 2024 Table 1 (Initial Isolation and Protective Action Distances) has two entries for it: “Phosphorus trichloride (when spilled on land)” and “Phosphorus trichloride (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 1809

By number (yellow pages): before 1809 come UN/NA 1806 Phosphorus pentachloride (Guide 137); UN/NA 1807 Phosphorus pentoxide (Guide 137) and UN/NA 1808 Phosphorus tribromide (Guide 137); after it, UN/NA 1810 Phosphorus oxychloride (Guide 137); UN/NA 1811 Potassium hydrogen difluoride, solid (Guide 154) and UN/NA 1812 Potassium fluoride, solid (Guide 154).

By name (blue pages): “Phosphorus trichloride” comes after Phosphorus sesquisulphide, free from yellow and white phosphorus (UN/NA 1341, Guide 139) and Phosphorus tribromide (UN/NA 1808, Guide 137) and before Phosphorus trioxide (UN/NA 2578, Guide 157) and Phosphorus trisulfide, free from yellow and white phosphorus (UN/NA 1343, Guide 139).

Other names starting with “Phosphorus”: Phosphorus pentafluoride, adsorbed (UN/NA 3524, Guide 173); Phosphorus pentafluoride, compressed (UN/NA 2198, Guide 125); Phosphorus pentasulphide, free from yellow and white phosphorus (UN/NA 1340, Guide 139); Phosphorus, amorphous (UN/NA 1338, Guide 133); Phosphorus, white, dry or under water or in solution (UN/NA 1381, Guide 136) and Phosphorus, white, molten (UN/NA 2447, Guide 136).

Guide 137 · Library

Guide 137 covers 32 UN/NA numbers. The 12 around 1809 in the guide’s number order: UN/NA 1754 Chlorosulfonic acid (with or without sulfur trioxide); 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 1810 Phosphorus oxychloride; 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.

Sources

• PHMSA · ERG 2024 · EN / ES / FR