INCOMPATIBLE CHEMICALS

SOLID WASTE SECTION

 bromine: ammonia, acetylene, butadiene, hydrocarbons, hydrogen, sodium, finely-divided metals, turpentine, other hydrocarbons  calcium carbide: water, alcohol  calcium oxide: water  carbon, activated: calcium hypochlorite, oxidizing agents  chlorates: ammonium salts, acids, metal powders, sulphur, finely divided organic or combustible materials  chromic acid: acetic acid, naphthalene, camphor, glycerin, turpentine, alcohols, flammable liquids A wide variety of chemicals react dangerously when in general mixed with certain other materials. Some of the more  chlorine: see bromine widely-used incompatible chemicals are given  chlorine dioxide: ammonia, methane, phosphine, below, but the absence of a chemical from this list hydrogen sulphide should not be taken to indicate that it is safe to mix it  copper: acetylene, hydrogen peroxide with any other chemical! When in doubt, refer to the  cumene hydroperoxide: acids, organic or Material Safety Data Sheet (MSDS). inorganic  cyanides: acids  acetic acid: chromic acid, ethylene glycol, nitric  flammable liquids: ammonium nitrate, chromic acid, hydroxyl compounds, perchloric acid, acid, hydrogen peroxide, nitric acid, sodium peroxides, permanganates peroxide, halogens  acetone: concentrated sulphuric and nitric acid  hydrocarbons: fluorine, chlorine, bromine, mixtures chromic acid, sodium peroxide  acetylene: chlorine, bromine, copper, fluorine,  hydrocyanic acid: nitric acid, alkali silver, mercury  hydrofluoric acid: aqueous or anhydrous  alkali and alkaline earth metals: water, ammonia chlorinated hydrocarbons, carbon dioxide,  hydrogen peroxide: copper, chromium, iron, halogens, alcohols, aldehydes, ketones, acids most metals or their salts, alcohols, acetone,  aluminium (powdered): chlorinated organic materials, aniline, nitromethane, hydrocarbons, halogens, carbon dioxide, organic flammable liquids, oxidizing gases acids.  hydrogen sulphide: fuming nitric acid, oxidizing  anhydrous ammonia: mercury, chlorine, calcium gases hypochlorite, iodine, bromine, hydrofluoric acid  hypochlorites: acids, activated carbon  ammonium nitrate: acids, metal powders,  iodine: acetylene, ammonia (aqueous or flammable liquids, chlorates, nitrites, sulphur, anhydrous), hydrogen finely divided organic combustible materials  mercury: acetylene, fulminic acid, ammonia  aniline: nitric acid, hydrogen peroxide  mercuric oxide: sulphur  arsenic compounds: reducing agents  nitrates: sulphuric acid  azides: acids Iowa Department of Natural Resources | 502 E. 9th St. Des Moines, IA 50319 | (515) 725-8200

www.iowadnr.gov Revised 8/2015 INCOMPATIBLE CHEMICALS

SOLID WASTE SECTION

 nitric acid (conc.): acetic acid, aniline, Guidance chromic acid, hydrocyanic acid, hydrogen When certain hazardous chemicals are stored or sulphide, flammable liquids, flammable gases mixed together, violent reactions may occur because  oxalic acid: silver, mercury the chemicals are unsuitable for mixing, or are  perchloric acid: acetic anhydride, bismuth incompatible. Classes of incompatible chemicals and its alloys, ethanol, paper, wood should be segregated from each other during  peroxides (organic): acids, avoid friction or storage, according to hazard class. Use the following shock general guidelines for hazard class storage:  phosphorus (white): air, alkalies, reducing agents, oxygen  Flammable/Combustible Liquids and  potassium: carbon tetrachloride, carbon Organic Acids http://chemresponsetool.noaa.gov/dioxide,  Flammable Solids water  Mineral Acids  potassium chlorate: acids  Caustics  potassium perchlorate: acids  Oxidizers  potassium permanganate: glycerin, ethylene  Perchloric Acid glycol, benzaldehyde, sulphuric acid  Compressed Gases  selenides: reducing agents  silver: acetylene, oxalic acid, tartaric acid, For more information: ammonium compounds, fulminic acid  EPA-Managing chemical Reactivity Hazards.

 sodium: carbon tetrachloride, carbon dioxide, www.epa.gov/oem/docs/chem/reactive- water management-pub.pdf  sodium nitrate: ammonium salts  Chemical safety references:  sodium peroxide: ethanol, methanol, glacial www.thesafetylibrary.com/lib/chemicalsafety acetic acid, acetic anhydride, benzaldehyde, /storingchemicals.php carbon disulphide, glycerin, ethylene glycol,  Chemical response tool: ethyl acetate, methyl acetate, furfural  sulphides: acids www.cameochemicals.noaa.gov/help/cam  sulphuric acid: potassium chlorate, eo_chemicals_help.htm potassium perchlorate, potassium permanganate (or compounds with similar The information contained in this fact sheet has been compiled from sources believed to be reliable and to light metals, such as sodium, lithium, etc.) represent the best opinions on the subject. This  tellurides: reducing agents publication is intended to provide basic guidelines for the  zinc powder: sulphur safe storage of chemicals and should serve as a starting point for good practices. Local, state, and federal laws and legal counsel should be consulted prior to initiating a chemical storage program. It cannot be assumed that all necessary warning and precautionary measures are

contained in this publication; additional information may be required.

Iowa Department of Natural Resources | 502 E. 9th St. Des Moines, IA 50319 | (515) 725-8200

www.iowadnr.gov Revised 8/2015