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UN/NA 1781 · Hexadecyltrichlorosilane
UN/NA 1781 · ERG 2024 · Guide 156
- UN/NA
- 1781
- Edition
- ERG 2024
ERG 2024 lists UN/NA 1781 (Hexadecyltrichlorosilane) under Guide 156, titled “Substances - Toxic and/or Corrosive (Combustible/Water-Sensitive)”.
Material name
1781 on a placard, orange panel or shipping paper
It points to the ERG 2024 entry “Hexadecyltrichlorosilane” and to Guide 156. On a numbered orange panel, 1781 is the lower number (how to read an orange panel).
ERG 2024 markings for 1781
1781 is highlighted in green, so ERG 2024 Table 1 (Initial Isolation and Protective Action Distances) has an entry for it: “Hexadecyltrichlorosilane (when spilled in water)”. Hazora shows those distances in the app, not on this page. “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 156 has no P.
Entries near 1781
By number (yellow pages): before 1781 come UN/NA 1778 Fluorosilicic acid (Guide 154); UN/NA 1779 Formic acid (Guide 153) and UN/NA 1780 Fumaryl chloride (Guide 156); after it, UN/NA 1782 Hexafluorophosphoric acid (Guide 154); UN/NA 1783 Hexamethylenediamine, solution (Guide 153) and UN/NA 1784 Hexyltrichlorosilane (Guide 156).
By name (blue pages): “Hexadecyltrichlorosilane” comes after Hexachlorocyclopentadiene (UN/NA 2646, Guide 151) and Hexachlorophene (UN/NA 2875, Guide 151) and before Hexadiene (UN/NA 2458, Guide 130) and Hexaethyl tetraphosphate (UN/NA 1611, Guide 151).
Guide 156 · Library
Guide 156 covers 65 UN/NA numbers. The 12 around 1781 in the guide’s number order: UN/NA 1763 Cyclohexyltrichlorosilane; UN/NA 1765 Dichloroacetyl chloride; UN/NA 1766 Dichlorophenyltrichlorosilane; UN/NA 1769 Diphenyldichlorosilane; UN/NA 1771 Dodecyltrichlorosilane; UN/NA 1780 Fumaryl chloride; UN/NA 1784 Hexyltrichlorosilane; UN/NA 1799 Nonyltrichlorosilane; UN/NA 1800 Octadecyltrichlorosilane; UN/NA 1801 Octyltrichlorosilane; UN/NA 1804 Phenyltrichlorosilane; UN/NA 1886 Benzylidene chloride.
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.