Modifiers matching impurity:

• little,
• airborne,
• physical,
• sticky,
• mechanical,
• out,
• harmless,
• reactive,
• coarse,
• undesired,
• hazardous,
• unwanted,
• microscopic,
• volatile,
• unavoidable,
• small,
• environmental,
• heterogeneous,
• foreign,
• initial,
• mobile,
• harmful,
• dilute,
• homogeneous,
• particulate,
• organic,
• desirable,
• ordinary,
• separate,
• soluble,
• insoluble,
• interfering,
• up,
• atmospheric,
• nonpolar,
• residual,
• colloidal,
• biological,
• lightweight,
• inorganic,
• possible,
• heavier,
• minor,
• anionic,
• damaging,
• suspended,
• fluid,
• natural,
• mental,
• gaseous,
• random,
• absorptive,
• micro,
• off,
• active,
• dissolved,
• stubborn,
• polar,
• light,
• chemical,
• visible,
• smaller,
• fine,
• minute,
• lighter,
• common,
• ionic,
• solid,
• corrosive,

Simple categories matching chemical:

• concentrate,
• degradation,
• component,
• analgesic,
• constituent,
• reductant,
• fertiliser,
• installation,
• waste,
• assessment,
• material,
• action,
• contaminant,
• factor,
• perturbation,
• linkage,
• signal,
• pesticide,
• container,
• substance,
• system,
• solvent,
• receptor,
• finish,
• smell,
• use,
• function,
• intermediate,
• inhibitor,
• commodity,
• marker,
• paint,
• entity,
• concept,
• level,
• glassware,
• addiction,
• spray,
• change,
• atmosphere,
• alteration,
• affinity,
• rock,
• buffer,
• stripper,
• physics,
• parameter,
• composition,
• preparation,
• quantity,
• user,
• move,
• activator,
• particulate,
• odor,
• battery,
• foodstuff,
• contamination,
• sector,
• salt,
• arsenal,
• cause,
• stress,
• fraction,
• acid,
• instrument,
• device,
• trauma,
• quality,
• variation,
• discoloration,
• input,
• neurotransmitter,
• state,
• sensing,
• reactant,
• textile,
• compound,
• toxicity,
• vessel,
• activity,
• adhesive,
• control,
• carrier,
• sensitivity,
• adulterant,
• carcinogen,
• condition,
• nutrient,
• arts,
• separation,
• knowledge,
• identifier,
• dependency,
• mixer,
• information,
• reaction,
• equipment,
• derivative,
• additive,
• solid,
• attack,
• fumes,
• interaction,
• stimulant,
• liquid,
• pollutant,
• transmitter,
• item,
• standard,
• process,
• processing,
• peculiarity,
• indicator,
• choice,
• grouping,
• group,
• molecule,
• deposit,
• polymer,
• agent,
• fabric,
• powder,
• impurity,
• oxidant,
• nature,
• phenomenon,
• barrier,
• measurement,
• cyanide,
• means,
• fertilizer,
• chemical,
• unit,
• odour,
• dependence,
• insect,
• coagulant,
• preservative,
• matter,
• stain,
• coating,
• medium,
• resistance,
• difference,
• metabolite,
• bonding,
• facility,
• product,
• gas,
• repellent,
• monomer,
• decongestant,
• measure,
• consistency,
• hormone,
• protection,
• modification,
• poison,
• topic,
• sorbent,
• data,
• precursor,
• fibre,
• disinfection,
• substrate,
• name,
• application,
• treatment,
• characteristic,
• symbol,
• hazard,
• explosive,
• toxin,
• residue,
• test,
• issue,
• technique,
• sensor,
• structure,
• drug,
• metal,
• service,
• concentration,
• germicide,
• form,
• insecticide,
• toner,
• ingredient,
• fuel,
• operation,
• sense,
• content,
• machinery,
• sediment,
• disinfectant,
• thickener,
• particle,
• lab,
• engineer,
• variable,
• sweetener,
• reagent,
• acaricide,
• attribute,
• object,
• catalyst,
• weapon,
• fiber,
• assay,
• field,
• identification,
• medicine,
• property,
• inducer,
• invention,
• division,
• discipline,
• fragrance,
• sugar,
• fumigant,
• procedure,
• antidote,
• propellant,
• elements,
• makeup,
• stabilizer,
• library,
• interference,
• appliance,
• fluid,
• mixture,
• binder,
• event,
• tank,
• hydride,
• evolution,
• aggregate,
• analysis,
• herbicide,
• solution,
• derivation,
• cofactor,
• stimulus,
• situation,
• glove,