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1. Chemical incompatibility reference guide v.1.0 Page 1 of 2
Chemical Incompatibility Reference Guide
This guide is a quick reference for chemicals commonly encountered in the lab. For
questions about this document, contact ehs.info@ualberta.ca.
The following list is a quick reference of incompatibilities of many chemicals commonly encounteredin the laboratory. It
is not a comprehensive list of all possible combinations and chemicals. For details on any chemical, check the MSDS, and
followthe segregationguidelinesin 5.Storage of Chemicals.
Chemical IncompatibilitiesforChemical Storage
AceticAcid
Aldehydes,bases,carbonates,chromicacid,ethyleneglycol,hydroxides,metals,oxidizers,
perchloricacid,peroxides,permanganates,phosphates,xylene
AceticAnhydride Acids,alcohols,bases,finelydividedmetals,oxidizers,reducingagents
Acetone Inorganicacids,amines,hydrogenperoxide,oxidizers,plastics
Acetylene Coppermetal,halogens,mercury,potassium, silver,oxidizers
Alkalis
Acids,carbondioxide,chlorinatedhydrocarbons,chromium, flammable liquids,mercury,
oxidizers,salt,sulphur,water
AmmoniumNitrate Acids,alkalis,chlorates,fineorganicpowders,metals,nitrates,oxidizers,sulfur
Aniline Inorganicacids,dibenzoylperoxide,hydrogenperoxide,oxidizers
Azides Acids,heavymetals,oxidizers
Bromine
Acetaldehyde,acetylene,alcohols,alkalis,amines,benzene,butadiene,butane andother
petroleumgases,ethylene,fluorine,hydrogen,ketones,finelydividedmetals, sodium
carbide,sulfur,turpentine
CalciumOxide Acids,ethanol,fluorine
Carbon(activated) Alkalis,oxidizers,calciumhypochlorite,halogens
CarbonTetrachloride Benzoyl peroxides,ethylene,fluorine,oxygen,silanes
Chlorates
Acids,ammoniumsalts,carbon,metal powders,sulfur,finelydividedcombustiblesand
organics
ChromicAcid
Aceticacid,acetone,alcohols,alkalis,ammonia,bases,camphor,flammable liquids,
glycerine,turpentine
Chlorine
Acetylene,ammonia,benzene,butadiene,ethylene andotherpetroleumgases,hydrazine,
hydrogen,hydrogenperoxide,iodine,sodiumhydroxide,turpentine,otherpetroleum
components,finelydividedmetals
Chlorine Dioxide
Ammonia,hydrogen,hydrogensulfide,mercury,methane,phosphine,phosphorous,
potassiumhydroxide
Copper Acetylene,calcium, hydrogenperoxide,oxidizers
Cyanides Acids,alkalis,strongbases
Flammable Liquids
Ammoniumnitrate,chromicacid,hydrogenperoxide,nitricacid,sodiumperoxide,
halogens
Fluorine
Ammonia,halocarbons,halogens,ketones,metals,organicacids,hydrocarbons,other
combustible material
Hydrazine Inorganicacids,hydrogenperoxides,oxidizers
Hydrocarbons Acids,bases,oxidizers
HydrochloricAcid Alkali metals,amines,bases,copper,copperalloys, aluminium,moisture
HydrofluoricAcid Ammonia,glass,organics,sodium
HydrogenPeroxide
Acetylaldehyde,aceticacid,acetone,alcohols,aniline,carboxylicacids,flammableliquids
and combustible material,metalsandtheirsalts,nitricacid,nitromethane,organics,
phosphorous,sodium,sulfuricacid
HydrogenSulfide Acetylaldehyde,oxidizers,sodium

2. Chemical incompatibility reference guide v.1.0 Page 2 of 2
Hypochlorites Acids,activatedcarbon
Iodine Acetylaldehyde,acetylene,ammonia,hydrogen,sodium
Mercury Acetylene,aluminium, amines,ammonia,calcium, fulminicacid,lithium,oxidizers
Nitrates Sulfuricacid,otheracids,nitrites
NitricAcid(Conc.)
Aceticacid,acetonitrile,amines,ammonia,aniline,bases,benzene,brass,chromicacid,
copper,cumene, flammable liquidsandgases,formicacid,heavymetals,hydrogensulfide,
ketones,organicsubstances,sodium,toluene
Nitrites Acids,nitrates
Nitroparaffins Amines,inorganicbases
OxalicAcid Mercury, oxidizers,silver,sodiumchlorite
Oxygen
Acetylaldehyde,alkalis,ammonia,carbonmonoxide,ethers,flammable gases,liquids&
solids,hydrocarbons,phosphorous
PerchloricAcid
Aceticacid,aceticanhydride,alcohols,aniline,bismuthandbismuthalloys,combustible
materials,dehydratingagents,ethyl benzene,hydroiodicacid,hydrochloicacid,grease,
iodides,ketones,otherorganicmaterials,oxidizers,pyridine
Peroxides,Organic Acids(inorganic,organic)
Phosphorous Air,alkalis,oxygen,reducingagents
Potassium
Acetylene,acids,alcohols,carbondioxide,carbontetrachloride,halogens,hydrazine,
mercury,oxidizers,selenium,sulfur
PotassiumChlorate
Acids,ammonia,combustible materials,fluorine,hydrocarbons,metals,organic
substances,sugars
PotassiumPerchlorate
Acids, alcohols,combustiblematerial,fluorine,hydrazine,metals,organicmaterials,
reducingagents
Potassium
Permanganate
Benzaldehyde,ethylene glycol,glycerol,sulfuricacid
Selenides Reducingagents
Silver
Acetylene,ammonia,ammoniumcompounds,fulminicacid,oxalicacid,oxidizers,
ozonides,peroxyformicacid
Sodium Acids,carbontetrachloride,carbonmonoxide,hydrazines,metals,oxidizers,water
SodiumNitrate Acetcanhydride,acids,metals,organicmatter,peroxyformicacid,reducingagents
SodiumNitrite Ammoniumnitrate andammoniumsalts
Sodiumperoxide
Aceticacid,aceticanhydride,benzene,benzaldehyde,carbondisulfide,ethyl acetate,
furfural,gylcerin,hydrogensulfide,metals,methylacetate,peroxyformicacid,
phosphorous
Sulfides Acids
SulfuricAcid
Flammable andcombustible liquids,potassiumchlorate,potassiumperchlorate,potassium
permanganate,likecompoundsof sodiumandlithium
Tellurides Reducingagents