sign in sign up
<<
Home , Arsine, Chromic acid, Formic acid, Hydrochloric acid, Hydrofluoric acid, Trifluoroacetic acid

Chemical Segregation and Storage Table

Chemical Segregation

Class of Chemicals Common Chemical Additional Concerns and Common Incompatible Possible Reaction if Examples Storage Recommendations Chemical Types Mixed/Health Concerns

Corrosive -Organic Acetic Store in ventilated corrosives Flammable Liquids Heat Glacial cabinet on protected shelving Flammable Solids Gas Generation using secondary containment, Bases Violent Reaction keep away from sources Oxidizers * DO NOT POUR WATER Inorganic Acids INTO ACID *Do not store under the sink *Do not store acids on Cyanides shelving Sulfides /Toxins

Corrosive Acids-Inorganic Store concentrated Nitric acid Flammable Liquids Heat (≥68%) and Sulfuric acid (≥93%) Flammable Solids Gas Generation in a secondary container Bases Violent Reaction Store in a corrosive cabinet Oxidizers *DO NOT POUR WATER INTO ACID labeled “Acid” or on shelving Organic Acids using a secondary containment Cyanides *Perchloric acid vapor can Chromic Acid *Do not store under the sink Sulphides form explosive compounds *Do not store acids on metal Poisons/Toxins within fume hood ducts shelving *Hydrofluoric acid can result *Hydrofluoric acid should be stored in severe to skin and in an area accessible only by lungs authorized personnel; do not store in glass; use containers and secondary containment

Corrosive Bases- Store in separate cabinet, Acids Heat Organic/Caustic Tetramethylethylamine preferably with ventilation, Oxidizers Gas Generation Diamine corrosive cabinet or storage area Flammable Liquids Violent Reaction with a spill tray, away from potential Flammable Solids water sources (DO NOT store under Inorganic Bases the sink) Poisons/Toxins

Corrosive Bases- Store in separate cabinet, Acids Heat Inorganic/Caustics Potassium Hydroxide preferably with ventilation, Oxidizers Gas Generation corrosive cabinet or storage area Flammable Liquids Violent Reaction Calcium Hydroxide with a spill tray, away from Flammable Solids potential water sources (DO NOT Organic Bases store under the sink); Store Poisons/Toxins of inorganic in labeled containers Chemical Segregation

Class of Chemicals Common Chemical Additional Concerns and Common Incompatible Possible Reaction if Examples Storage Recommendations Chemicals Types Mixed/Health Concerns

Flammable Solids Charcoal Keep in a dry, cool area away Acids Fire Hazard from oxidizers and corrosives Bases Violent Reaction Paraformaldehyde Oxidizers Poisons/Toxins

Flammable Liquids , , Flammable storage cabinet or Oxidizers Fire Hazard , , refrigerator rated for flammable/ Acids Heat , , hazardous storage/explosion proof Bases Violet Reaction *Peroxide-forming chemicals Reactives must be dated upon delivery Poisons/Toxins Tetrahydrofuran and opening (two dates) Glacial Acetic Acid Acetone liquids with flashpoints < 100 F

Poisons/Toxins Store in a dark, dry, ventilated, Flammable liquids Generation of Toxic and Cyanides cool area in an unbreakable Acids Flammable Gas Heavy metal compounds chemically resistant secondary Bases Combustion (e.g. , , container (polyethylene) Reactives Heat Oxidizers Fire Hazard , , * Store volatile toxins with rate above Corrosives Explosion Hazard Phenol, Formic Acid), 1.0 - (ether =1.0) in flammable Please consult Division of Violent Reaction Chloroform , cabinet; Environmental Protection explosively reacts with Carbon Tetracholride, 2- Store non-volatile liquid poisons in (DEP) for assistance chemically-reactive Mercaptoethanol Phenol, a refrigerator or cabinet; amounts *Hydrofluoric Acid should (e.g., Aluminum or less than 1 liter can be stored in a be stored in an area Magnesium powder, Sodium, *Hydrofluoric Acid - cabinet above bench level, ONLY if accessible only by and Lithium), Strong Hydrofluoric Acid is a the cabinet has sliding doors (not authorized personnel; do Oxidizers, Strong Caustics highly acute swinging) not store in glass; use (e.g., Alkalis), and decomposes in sunlight Acrylamide plastic containers and secondary containment Ethidium Bromide Sodium Azide

Explosives Picric Acid Store in a secure location away Please consult the SDS Explosion Hazard Ammonium Nitrate from other chemicals; store in an and the DEP Violent Reaction Nitro area away from friction or shock Heat Trinitroaniline Shock Benzoyl Peroxide Friction Trinitrobenzene Trinitrobenzoic Acid Trinitrotoluene Urea Nitrate Trinitrophenol Diazoisbutylnitrile Chemical Segregation

Class of Chemicals Common Chemical Additional Concerns and Common Incompatible Possible Reaction if Examples Storage Recommendations Chemicals Types Mixed/Health Concerns

Oxidizers Peroxides, Nitrates, Store in secondary containment Combustibles Fire Hazard Perchlorates separately from combustibles and Flammables Gas Generation Permanganates flammable materials Organic Materials Toxic Gas Reducing Agents Ethyl Acetate, Iodine, Benzoyl Peroxide Chlorates, Bromates, and Superoxides, Ammonium Persulfate, Ferric

Peroxide Formers Store in airtight bottles, away from Always consult the Safety Explosion Hazard Isopropyl Ethers light and heat in a dark, cool dry Data Sheet (SDS) and the Violent Reaction (e.g. Diethyl ether, area; avoid using containers with Division of Environmental Shock Sensitive Isopropyl Ether), Acetals loose-fitting lids and ground glass Protection (DEP) Combustion and Ketals, especially stoppers; , discoloration, (Exothermic Reaction) Cyclic Ethers and those and formation or deposition of layers with primary and/or are signs a peroxide former may If an old or expired container secondary groups have become shock sensitive; do of a peroxide-forming chemical not use or move such containers: or reactive is found, do not (e.g. , contact DEP; all bottles of peroxide- move it. Contact the DEP at Benzaldehyde) forming chemicals must have the 301-496-4710 for assistance Vinyl and Vinylidene received date marked on the in disposing of the container compounds, container; when the bottle is first Tetrahydrofuran opened, the container must be Dioxane marked with the date opened Butylated Hydroxytoluene (BHT) Isopropyl Ether

Water Reactive Sodium Metals Store in a dry, cool area away from Aqueous solutions Heat Lithium Metals potential spray from fire sprinklers Oxidizers Violent Reaction Potassium Metals and other water sources (DO NOT Please consult the Safety Sodium Borohydride store under the sink) Data Sheet (SDS) and the Division of Environmental Label this area for water-reactive Protection (DEP) storage Chemical Segregation

Class of Chemicals Common Chemical Additional Concerns and Common Incompatible Possible Reaction if Examples Storage Recommendations Chemicals Types Mixed/Health Concerns

Flammable Compressed Handle flammable compressed gases Oxidizers Fire Hazard Explosion Gases in a chemical fume hood Toxic Compressed Gases Hazard Butane Propane Store in well-ventilated areas; store away from oxidizers, open flames, sparks, and other sources of heat ignition; post NO SMOKING signs Arsine around storage area(s) or entrance(s) Germane to storage room(s); flammable gases stored outdoors where ambient temperatures exceed 125 deg F (51.7 deg C) shall be protected from direct sunlight

Use a spark proof wrench to attach regulators and make other connections; install a flame/flash arrestor at the regulator outlet flow valve

Oxidizing Compressed Store oxidizers separately from Flammable Compressed Gases Fire Hazard Gases flammable gas containers or Toxic Compressed Gases Explosion Hazard combustible materials; minimum oxides separation requirement from these Gas mixtures containing materials is 20 ft or a 5 ft noncom- Oxygen higher than bustible barrier with a fire resistance atmospheric rating of at least 30 minutes Clean equipment used for oxygen and with oxygen- compatible materials free from oils, greases, and other contaminants

Fluorine shall be handled in specially passivated containers and associated equipment

Toxic Compressed Handle toxic compressed gases in Flammable Compressed Gases Release of Toxic Gas Gases a chemical fume hood Oxidizing Compressed Gases is a colorless, Hydrogen Sulfide flammable, extremely hazardous Indoor storage or use of toxic gas with a “rotten egg” smell; compressed gases shall be provided Prolonged exposure may cause with a gas cabinet, exhausted nausea, tearing of the eyes, enclosure, or gas room headaches or loss of sleep, airway problems (bronchial Refer to the SDS information for constriction) in some asthma additional guidance on the storage patients; possible fatigue, loss and compatibility requirements of appetite, headache, irritability, poor memory, Contact DOHS to determine if a fail- Strong Reducing Agents Store in cool, dry, well-ventilated Please consult the specific dizzinessPlease consult and slight the specific safe valve and/or continuous location SDS and DEP conjunctivitisSDS and DEP monitoring for toxic gas may be Maleic anhydride Water reactive required during use Ferrous sulfide Segregate from all other chemicals Chemical Segregation

Class of Chemicals Common Chemical Additional Concerns and Common Incompatible Possible Reaction if Examples Storage Recommendations Chemicals Types Mixed/Health Concerns

Strong Reducing Agents Acetyl Chloride Store in cool, dry, well-ventilated Please consult the specific Please consult the specific Thionyl Chloride location SDS and DEP SDS and DEP Maleic Anhydride Water reactive Ferrous Sulfide Segregate from all other chemicals

Carcinogens Benzidine Label all containers as "Cancer Please consult the specific Please consult the specific Beta-Naphthylamine Suspect Agents" or the equivalent. SDS and DEP SDS and DEP Benzene Store according to the hazardous Chloride nature of the chemical, using Beta-Propiolactone appropriate security when necessary

Teratogens Compounds Label all containers as "Suspect incompatible with Please consult the specific Mercury Compounds Reproductive Hazard" or Nitric Acid and hHdrogen SDS and DEP Benzene “Reproductive Effecter” Peroxide Aniline Please consult the specific Store according to the hazardous SDS and DEP nature of the chemical, using appropriate security when necessary

General Stock Chemicals Sodium Store on shelves, or laboratory Please consult the Please consult the specific benches or shelving preferably SDS and DEP SDS and DEP Agar behind glass doors and below eye buffer level with like chemicals Most non-reactive salts

Adapted from Prudent Practices in the Laboratory: Handling and Disposal of Chemicals, National Research Council, 1995, University of Texas/Health Science at Houston and Boston University Environmental Health & Safety.