CLASS OF CHEMICALS

RECOMMENDED STORAGE METHOD

CHEMICAL EXAMPLES

INCOMPATIBLES (SEE MSDS IN ALL CASES)

Compressed Gases - Flammable (Includes Combustible)

Store in a cool, dry area, at least 20 feet away from oxidizing gases. Securely strap or chain cylinders to a wall or bench top. Some gases may require a sprinklered and/or ventilated gas storage cabinet.

Methane, Acetylene, Hydrogen

Oxidizing and toxic compressed gases, oxidizing solids

Compressed Gases - Liquefied Flammable

Store in a cool, dry area, at least 20 feet away from oxidizing gases. Securely strap or chain cylinders to a wall or bench top. Some gases may require a sprinklered and/or ventilated gas storage cabinet. Limit storage inside buildings to 16 oz. containers or less. Larger cylinders are for day use only inside buildings. Permanent storage should be located outside of the building.

Propane, Butane

Oxidizing and toxic compressed gases, oxidizing solids

Compressed Gases - Reactive (includes Oxidizing)

Store in a cool, dry area, at least 20 feet away from flammable gases and liquids. Securely strap or chain cylinders to a wall or bench top. Some gases may require a ventilated gas storage cabinet.

Oxygen, Chlorine, Bromine

Flammable gases

Compressed Gases - Threat to Human Health (includes Toxic and Corrosive)

Store in a cool, dry area, away from flammable gases and liquids. Securely strap or chain cylinders to a wall or bench top. Some gases may require a ventilated gas storage cabinet.

Carbon monoxide, Hydrogen sulfide

Flammable and/or oxidizing gases

Corrosives - Acids INORGANIC

Store in a separate, lined/protected acid storage cabinet or plastic secondary container

Inorganic (mineral) acids - Hydrochloric acid, Sulfuric acid, Chromic acid, Nitric acid. Note: Nitric acid is a strong oxidizer and should be stored by itself. Separate nitric acid from other acids by storing in a secondary container or a separate acid cabinet.

Flammable liquids, flammable solids, bases, and oxidizers. Organic acids

Corrosives - Acids ORGANIC

Store in a separate, lined/protected acid storage cabinet or plastic secondary container

Organic acids - Acetic acid, Trichloroacetic acid, Lactic acid

Flammable liquids, flammable solids, bases, and oxidizers. Inorganic acids

Corrosives - Bases

Store in a separate storage cabinet

Ammonium hydroxide, Potassium hydroxide, Sodium hydroxide

Oxidizers and Acids

Explosives

Store in a secure location away from all other chemicals. Do not store in an area where they can fall.

Ammonium nitrate, Nitro Urea, Sodium azide, Trinitroaniline, Trinitroanisole, Trinitrobenzene, Trinitrophenol/Picric Acid, Trinitrotoluene (TNT).

All other chemicals.

Flammable Liquids

Store in a flammable storage cabinet. Note: Peroxide forming chemicals must be dated upon opening, e.g., ether, tetrahydrofuran, dioxane

Acetone, Benzene, Diethyl ether, Methanol, Ethanol, Hexanes, Toluene

Oxidizers and Acids

Flammable Solids

Store in a separate dry cool area away from oxidizers, corrosives

Phosphorus, Carbon, Charcoal

Oxidizers and Acids

Water Reactive Chemicals / Pyrophorics  

Store in a dry, cool location. Protect from water and the fire sprinkler system, if applicable. Label location - WATER REACTIVE CHEMICALS -

Sodium metal, Potassium metal, Lithium metal, Lithium Aluminum hydride

Separate from all aqueous solutions, and oxidizers do not store with flammable materials or in a flammable liquids storage cabinet

Oxidizers

Store in a spill tray inside a non-combustible cabinet, separate from flammable and combustible materials.

Sodium hypochlorite, Benzoyl peroxide, Potassium permanganate, Potassium chlorate, Potassium dichromate. Note: The following chemical groups are considered oxidizers: Nitrates, Nitrites, Chromates, Dichromates, Chlorites, Permanganates, Persulfates, Peroxides, Picrates, Bromates, Iodates, Superoxides.

Separate from reducing agents, flammables, combustibles and organic materials.

Toxics (Poisons)

Store separately in a vented, cool, dry, area in chemically resistant secondary containers

Cyanides, heavy metal compounds, i.e. Cadmium, Mercury, Osmium

See MSDS

General Chemicals Non-Reactive

Store on general laboratory benches or shelving. Use upper shelving for non-hazardous chemicals only.

Agar, Sodium chloride, Sodium bicarbonate, and most non-reactive salts

See MSDS