# Poisons Act 1972, Part 2: Regulated poisons


Name of substance and Chemical Abstracts Service Registry number (CAS RN)
Concentration limit (weight in weight)
Aluminium phosphide (CAS RN 20859-73-8)
Aluminium sulfide (CAS RN 1302-81-4)
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Arsenic (CAS RN 7440-38-2); its compounds ...
Barium (CAS RN 7440-39-3), salts of, other than barium sulphate (CAS RN 7727-43-7) and the salts of barium listed in Part 4 of this Schedule)
Bromomethane (CAS RN 74-83-9)
Calcium phosphide (CAS RN 1305-99-3)
-
Calcium sulfide (CAS RN 20548-54-3)
-
Chloropicrin (CAS RN 76-06-2)
Fluoroacetic acid (CAS RN 144-49-0); its salts; fluoroacetamide
Hydrogen cyanide (CAS RN 74-90-8); metal cyanides, other than ferrocyanides and ferricyanides
Lead acetates (CAS RN 15347-57-6); compounds of lead with acids from fixed oils
Magnesium phosphide (CAS RN 12057-74-8)
Magnesium sulfide (CAS RN 12032-36-9)
-
Mercury (CAS RN 7439-97-6) ; its compounds
Oxalic acid (CAS RN 144-62-7)
10% w/w
Phenols (phenol; phenolic isomers of the following—cresols, xylenols, monoethylphenols); compounds of phenols with a metal
60% w/w of phenols or, for compounds of phenols with a metal, the equivalent of 60% w/w of phenols
Phosphorus, yellow (CAS RN 7223-14-0)
Sodium sulfide (CAS RN 1313-82-2)
-
Strychnine (CAS RN 57-24-9); its salts; its quaternary compounds
Thallium (CAS RN 7440-28-0), salts of
Zinc phosphide (CAS RN 1314-84-7)
-
2,4-Dinitrophenol (CAS RN 51-28-5) and compounds including sodium dinitrophenolate (CAS RN 1011-73-0)
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Source: https://www.legislation.gov.uk/ukpga/1972/66/schedule/1A/part/2 (the official version)
Page: https://openlegislation.uk/poisons-act-1972/schedule-1A/part-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.