Hazora · Library
UN/NA 1800 · Octadecyltrichlorosilane
UN/NA 1800 · ERG 2024 · Guide 156
- UN/NA
- 1800
- Edition
- ERG 2024
ERG 2024 lists UN/NA 1800 (Octadecyltrichlorosilane) under Guide 156, titled “Substances - Toxic and/or Corrosive (Combustible/Water-Sensitive)”.
Material name
1800 on a placard, orange panel or shipping paper
It points to the ERG 2024 entry “Octadecyltrichlorosilane” and to Guide 156. On a numbered orange panel, 1800 is the lower number (how to read an orange panel).
ERG 2024 markings for 1800
1800 is highlighted in green, so ERG 2024 Table 1 (Initial Isolation and Protective Action Distances) has an entry for it: “Octadecyltrichlorosilane (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 1800
By number (yellow pages): before 1800 come UN/NA 1796 Nitrating acid mixture with more than 50% nitric acid (Guide 157); UN/NA 1798 Aqua regia (Guide 157) and UN/NA 1799 Nonyltrichlorosilane (Guide 156); after it, UN/NA 1801 Octyltrichlorosilane (Guide 156); UN/NA 1802 Perchloric acid, with not more than 50% acid (Guide 157) and UN/NA 1803 Phenolsulfonic acid, liquid (Guide 153).
By name (blue pages): “Octadecyltrichlorosilane” comes after Nonyltrichlorosilane (UN/NA 1799, Guide 156) and o-Dichlorobenzene (UN/NA 1591, Guide 152) and before Octadiene (UN/NA 2309, Guide 128P) and Octafluorobut-2-ene (UN/NA 2422, Guide 126).
Guide 156 · Library
Guide 156 covers 65 UN/NA numbers. The 12 around 1800 in the guide’s number order: UN/NA 1769 Diphenyldichlorosilane; UN/NA 1771 Dodecyltrichlorosilane; UN/NA 1780 Fumaryl chloride; UN/NA 1781 Hexadecyltrichlorosilane; UN/NA 1784 Hexyltrichlorosilane; UN/NA 1799 Nonyltrichlorosilane; UN/NA 1801 Octyltrichlorosilane; UN/NA 1804 Phenyltrichlorosilane; UN/NA 1886 Benzylidene chloride; UN/NA 1898 Acetyl iodide; UN/NA 1938 Bromoacetic acid, solution; UN/NA 2078 Toluene diisocyanate.
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.