Hazora · Library
UN/NA 1541 · Acetone cyanohydrin, stabilized
UN/NA 1541 · ERG 2024 · Guide 156
- UN/NA
- 1541
- Edition
- ERG 2024
ERG 2024 lists UN/NA 1541 (Acetone cyanohydrin, stabilized) under Guide 156, titled “Substances - Toxic and/or Corrosive (Combustible/Water-Sensitive)”.
Material name
1541 on a placard, orange panel or shipping paper
It points to the ERG 2024 entry “Acetone cyanohydrin, stabilized” and to Guide 156. On a numbered orange panel, 1541 is the lower number (how to read an orange panel).
ERG 2024 markings for 1541
1541 is highlighted in green, so ERG 2024 Table 1 (Initial Isolation and Protective Action Distances) has an entry for it: “Acetone cyanohydrin, stabilized (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: HCN (hydrogen cyanide). Its guide number 156 has no P.
Entries near 1541
By number (yellow pages): before 1541 come UN/NA 1515 Zinc permanganate (Guide 140); UN/NA 1516 Zinc peroxide (Guide 143) and UN/NA 1517 Zirconium picramate, wetted with not less than 20% water (Guide 113); after it, UN/NA 1544 Alkaloids, solid, n.o.s. (poisonous) (Guide 151); UN/NA 1545 Allyl isothiocyanate, stabilized (Guide 131) and UN/NA 1546 Ammonium arsenate (Guide 151).
By name (blue pages): “Acetone cyanohydrin, stabilized” comes after Acetic anhydride (UN/NA 1715, Guide 137) and Acetone (UN/NA 1090, Guide 127) and before Acetone oils (UN/NA 1091, Guide 127) and Acetonitrile (UN/NA 1648, Guide 127).
Guide 156 · Library
Guide 156 covers 65 UN/NA numbers. The 12 around 1541 in the guide’s number order: UN/NA 1595 Dimethyl sulfate; UN/NA 1716 Acetyl bromide; UN/NA 1728 Amyltrichlorosilane; UN/NA 1729 Anisoyl chloride; UN/NA 1737 Benzyl bromide; UN/NA 1738 Benzyl chloride; UN/NA 2987 Chlorosilanes, corrosive, n.o.s.; UN/NA 3246 Methanesulfonyl chloride; UN/NA 3361 Chlorosilanes, poisonous, corrosive, n.o.s.; UN/NA 3425 Bromoacetic acid, solid; UN/NA 3428 3-Chloro-4-methylphenyl isocyanate, solid; UN/NA 9263 Chloropivaloyl 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.