Special Provision: T20

Phosphorus oxychloride

Phenylcarbylamine chloride

Phenyl isocyanate

Phenyl mercaptan

Perchloromethyl mercaptan

Nitric acid, red fuming

Methyldichloroarsine

Methyl phosphonic dichloride

Methyl phosphonous dichloride, pyrophoric liquid

Methyl orthosilicate