The Tour of Collective Wisdom presents:
Highly Toxic Reagents


If possible, avoid using these reagents. If not possible, take every precaution to avoid exposure. Not all reagents to avoid are on this list.

Highly toxic reagent:
I often use this I sometimes use this I almost never use this
Verification:
Reagent Use often Use sometimes Use almost never I use this...
ethylene oxide8041 often sometimes almost never
thallium(III) oxide4137 often sometimes almost never
hydrogen cyanide5537 often sometimes almost never
dibromodifluorometahne5136 often sometimes almost never
hydrazoic acid3134 often sometimes almost never
thiophosgene7238 often sometimes almost never
chloroacetaldehyde5135 often sometimes almost never
tetraazido-pentaerythritol7237 often sometimes almost never
oxalonitrile7136 often sometimes almost never
2-ethylpyridine7135 often sometimes almost never
phosgene4632 often sometimes almost never
Magic methyl (methylflurosulfonate)5533 often sometimes almost never
cyanogen bromide7234 often sometimes almost never
acridine9136 often sometimes almost never
white phosphorus8534 often sometimes almost never
Organomercury compounds11237 often sometimes almost never
trimethylsilyl cyanide7632 often sometimes almost never
hexafluoro-2,4-pentanedione9134 often sometimes almost never
MOM-Cl (methoxymethyl chloride)81331 often sometimes almost never
tributyltin choride10433 often sometimes almost never
ethidium bromide9732 often sometimes almost never
chromyl chloride8331 often sometimes almost never
methyl isocyanate7630 often sometimes almost never
Dinitrophenylhydrazones10432 often sometimes almost never
trimethyltin hydroxide11233 often sometimes almost never
dimethylmercury11133 often sometimes almost never
hydrofluoric acid (HF)61028 often sometimes almost never
mercuric chloride15436 often sometimes almost never
hydrogen selenide14135 often sometimes almost never
selenium dioxide8629 often sometimes almost never
chromium trioxide71027 often sometimes almost never
hexamethylditin13333 often sometimes almost never
hexamethylphosphoramide (HMPA)61626 often sometimes almost never
sulfur trioxide10529 often sometimes almost never
fluoroacetic acid10629 often sometimes almost never
osmium tetroxide9927 often sometimes almost never
benzyl chloride51523 often sometimes almost never
potassium cyanide71725 often sometimes almost never
Ethyl bromoacetate101228 often sometimes almost never
MOM6324 often sometimes almost never
perchloric acid12829 often sometimes almost never
thiophenol101126 often sometimes almost never
diepoxybutane18334 often sometimes almost never
dimethyl sulfate131028 often sometimes almost never
hydrogen sulfide15630 often sometimes almost never
AIBN (Azobisisobutyronitrile) (heating produces deadly tetramethylsuccinonitrile)81423 often sometimes almost never
acrylonitrile15530 often sometimes almost never
thioacetone2117 often sometimes almost never
diazomethane17631 often sometimes almost never
lead tetraacetate5019 often sometimes almost never
fluorine4218 often sometimes almost never
NaCN101424 often sometimes almost never
ozone14927 often sometimes almost never
tetramethyl tin19432 often sometimes almost never
carbon monoxide17829 often sometimes almost never
Aromatic amines with a blocked para position, i.e. 2-aminonaphthalene (kidney cancer)151127 often sometimes almost never
2-methoxyethanol4216 often sometimes almost never
HBTU 2-(1H-benzotriazol-1-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate16628 often sometimes almost never
tellurium4015 often sometimes almost never
carbon disulfide141323 often sometimes almost never
carbon tetrachloride141922 often sometimes almost never
chloroacetone18726 often sometimes almost never
phosgene9317 often sometimes almost never
acrylamide gels10617 often sometimes almost never
DEAD (diethylazodicarboxylate)15922 often sometimes almost never
nitrosobenzene3210 often sometimes almost never
indole429 often sometimes almost never
chromic acid reagent171322 often sometimes almost never
tributyltin hydride141218 often sometimes almost never
thionyl chloride191523 often sometimes almost never
sodium cyanide201323 often sometimes almost never
gold538 often sometimes almost never
Thiols (all of them)151218 often sometimes almost never
methyl vinyl ketone25727 often sometimes almost never
phosphorus oxychloride201121 often sometimes almost never
AgCN011 often sometimes almost never
KCN414 often sometimes almost never
BOC2O (di-t-butyl-dicarbonate)221422 often sometimes almost never
asdf111 often sometimes almost never
NO gas939 often sometimes almost never
BOM-Cl (benzyloxymethyl chloride)27627 often sometimes almost never
boron tribromide211820 often sometimes almost never
borane22918 often sometimes almost never
sodium iodide201716 often sometimes almost never
methyl iodide222017 often sometimes almost never
benzene9104 often sometimes almost never
Thalliumhexafluorophosphate802 often sometimes almost never
Aqua Regia (HCl and HNO3)221314 often sometimes almost never
air1637 often sometimes almost never
Bromine273016 often sometimes almost never
pyridine342911 often sometimes almost never
benzene34318 often sometimes almost never
acetonitrile63144 often sometimes almost never
Water (powerful drowning agent)86422 often sometimes almost never