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UN/NA 1838 · Titanium tetrachloride
UN/NA 1838 · ERG 2024 · Guide 137
- UN/NA
- 1838
- Edition
- ERG 2024
ERG 2024 lists UN/NA 1838 (Titanium tetrachloride) under Guide 137, titled “Substances - Water-Reactive - Corrosive”.
Material name
1838 on a placard, orange panel or shipping paper
It points to the ERG 2024 entry “Titanium tetrachloride” and to Guide 137. On a numbered orange panel, 1838 is the lower number (how to read an orange panel).
ERG 2024 markings for 1838
1838 is highlighted in green, so ERG 2024 Table 1 (Initial Isolation and Protective Action Distances) has two entries for it: “Titanium tetrachloride (when spilled on land)” and “Titanium tetrachloride (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 1838
By number (yellow pages): before 1838 come UN/NA 1835 Tetramethylammonium hydroxide aqueous solution with more than 2.5% but less than 25% tetramethylammonium hydroxide (Guide 153); UN/NA 1836 Thionyl chloride (Guide 137) and UN/NA 1837 Thiophosphoryl chloride (Guide 157); after it, UN/NA 1839 Trichloroacetic acid (Guide 153); UN/NA 1840 Zinc chloride, solution (Guide 154) and UN/NA 1841 Acetaldehyde ammonia (Guide 171).
By name (blue pages): “Titanium tetrachloride” comes after Titanium sponge granules (UN/NA 2878, Guide 170) and Titanium sponge powders (UN/NA 2878, Guide 170) and before Titanium trichloride mixture (UN/NA 2869, Guide 157) and Titanium trichloride mixture, pyrophoric (UN/NA 2441, Guide 135).
Other names starting with “Titanium”: Titanium disulphide (UN/NA 3174, Guide 135); Titanium hydride (UN/NA 1871, Guide 170); Titanium powder, dry (UN/NA 2546, Guide 135) and Titanium powder, wetted with not less than 25% water (UN/NA 1352, Guide 170).
Guide 137 · Library
Guide 137 covers 32 UN/NA numbers. The 12 around 1838 in the guide’s number order: 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 1836 Thionyl chloride; 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; UN/NA 2691 Phosphorus pentabromide.
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.