Door Sign Examples

Compressed Gases (Examples)

Air (compressed or refrigerated liquid)
Carbon dioxide (compressed or refrigerated liquid)
Helium (compressed or refrigerated liquid)
Nitrogen (compressed or refrigerated liquid)
Oxygen (compressed or refrigerated liquid)
Refrigerant gases
Xenon (compressed or refrigerated liquid)

Corrosives (Examples)

Inorganic Acids
Bromine or Bromine solutions 
Chromic acid solution (Chromerge)
Hydrochloric acid 
Hydrofluoric acid 
Nitric acid 
Perchloric acid 
Phosphoric acid 
Sulfuric acid 
Zinc chloride, solution

Organic Acids
Acetic acid, glacial 
Acetic acid solution 
Acetic anhydride 
Benzene sulfonyl chloride 
Butyric acid 
Butyric anhydride 
Caproic acid 
2-Chloropropionic acid 
Crotonic acid 
Dichloroacetic acid 
Formic acid 
Maleic anhydride 
Propionic acid 
Thioglycolic acid 
Trichloroacetic acid 
Trifluoroacetic acid

Caustics/Bases
Amine compounds and solutions
Ammonia solutions 
Bisulfate, aqueous solution 
Bisulfites, aqueous solutions 
Chlorite solution 
Hydroxide compounds and solutions 
Hypochlorite compounds and solutions 
Potassium hydroxide 
Soda lime 
Sodium hydroxide

Explosives (Examples)

Azide compounds (except sodium azide)
Nitro compounds (di-, tri-, and higher)
Picric Acid
Picryl compounds
Tetrazole compounds

Flammable Gases (Examples)

1,1,1-Trifluoroethane
Acetylene, dissolved
Butane 
Cyclopropane
Isobutylene 
Methane (compressed or refrigerated liquid)
Propane 
Propylene 
Silane

Flammable Liquids (Examples)

Extremely Flammable Liquids
Acetaldehyde
Carbon disulfide
Diethyl ether
Ethyl ether
Isopentenes
Pentanes
Propylene oxide

Standard Flammable Liquids
Acetic Acid, Glacial
Acetone
Benzene
Butanol
Ethanol
Hexane
Isopropanol
Methanol
Methyl Ethyl Ketone
Tetrahydrofuran
Toluene
Xylene

Flammable Solids (Examples)

Metal Hydrides
Nitrocellulose membrane filters 
Paraformaldehyde
Phosphorus heptasulfide
Sulfur

Pyrophorics/Air Reactives (Examples)

Aluminum borohydride 
Diethylzinc 
Pentaborane 
Potassium dithionite 
Potassium sulfide 
Sodium dithionite 
Sodium sulfide 
Tributylphosphane

Oxidizers (Examples)

Bleach
Bromate compounds
Chlorate compounds
Chlorite compounds
Chromate compounds
Hydrogen peroxide
Hypochlorite compounds 
Nitrate compounds
Nitrite compounds
Perchloric acid
Permanganate compounds
Persulfate compounds

Poisonous/Toxic Liquids and Solids (Examples)

High Toxic Chemicals
Acrolein 
Allyl Alcohol
Aniline
Arsenic compounds
Barium compounds
Brucine
Cacodylic acid 
Carbon tetrachloride 
Cyanide compounds
Dimethyl sulfate 
Dinitrobenzene
Isocyanate compounds
Epichlorohydrin 
Mercury compounds 
Nicotine Compounds 
Osmium tetroxide 
Selenium compounds 
Sodium azide
Vanadium compounds

Toxic Chemicals
Aminophenols 
Chloroform 
Dichloromethane 
Hydroquinone 
Lead compounds 
Nitrophenols 
Phenol
Sodium fluoride

Poisonous Gases (Examples)

Arsine 
Carbon monoxide 
Chlorine and chloride gases
Cyanogen 
Ethylene oxide 
Fluoride gases
Hydrogen sulfide 
Methyl mercaptan 
Nitric oxide 
Phosgene 
Phosphine 
Sulfur dioxide

Poison Inhalation Hazards (Examples)

Acrolein 
Bromine solutions 
Chloroacetonitrile 
2-Chloroethanal 
Chloroformate compounds
Chlorosulfonic acid 
Crotonaldehyde 
Dimethyl sulfate 
Dimethylhydrazine 
Hexachlorocyclopentadiene 
Isocyanate compounds
Methanesulfonyl chloride 
Methyl vinyl ketone 
Phenyl mercaptan 
Phosphorus trichloride 
Titanium tetrachloride 
Trichloroacetyl chloride 
Trimethylacetyl chloride

Water Reactive Chemicals (Examples)

Alkaline earth metals
Borohydride compounds
Boron trifluoride dimethyl etherate 
Calcium hydride 
Chlorosilane compounds 
Hydride compounds
Methyldichlorosilane 
Phosphide compounds
Trichlorosilane 
Zinc powder

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Weill Cornell Medicine Environmental Health and Safety 1300 York Avenue
Room LC006
New York, NY 10065 Phone: (646) 962-7233 Fax: (646) 962-0288