List of R-phrases

{{Short description|Standardised phrases specifying risks associated with substances}}

R-phrases (short for risk phrases) are defined in Annex III of European Union Directive 67/548/EEC: Nature of special risks attributed to dangerous substances and preparations. The list was consolidated and republished in Directive 2001/59/EC,{{CELEX|32001L0059|text=Commission Directive 2001/59/EC of 6 August 2001 adapting to technical progress for the 28th time Council Directive 67/548/EEC on the approximation of the laws, regulations and administrative provisions relating to the classification, packaging and labelling of dangerous substances}} where translations into other EU languages may be found.

These risk phrases are used internationally, not just in Europe, and there is an ongoing effort towards complete international harmonization using the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) which now generally replaces these risk phrases.

Risk phrases

Missing R-numbers indicate phrases that have been deleted or replaced by other phrases.

class="wikitable"
scope="col" | Code

! scope="col" | Phrase

scope="row" id="R1" | R1

| Explosive when dry

scope="row" id="R2" | R2

| Risk of explosion by shock, friction, fire, or other sources of ignition

scope="row" id="R3" | R3

| Extreme risk of explosion by shock, friction, fire, or other sources of ignition

scope="row" id="R4" | R4

| Forms very sensitive explosive metallic compounds

scope="row" id="R5" | R5

| Heating may cause an explosion

scope="row" id="R6" | R6

| Explosive with or without contact with air

scope="row" id="R7" | R7

| May cause fire

scope="row" id="R8" | R8

| Contact with combustible material may cause fire

scope="row" id="R9" | R9

| Explosive when mixed with combustible material

scope="row" id="R10" | R10

| Flammable

scope="row" id="R11" | R11

| Highly flammable

scope="row" id="R12" | R12

| Extremely flammable

scope="row" id="R14" | R14

| Reacts violently with water

scope="row" id="R15" | R15

| Contact with water liberates extremely flammable gases

scope="row" id="R16" | R16

| Explosive when mixed with oxidising substances

scope="row" id="R17" | R17

| Spontaneously flammable in air

scope="row" id="R18" | R18

| In use, may form flammable/explosive vapour-air mixture

scope="row" id="R19" | R19

| May form explosive peroxides

scope="row" id="R20" | R20

| Harmful by inhalation

scope="row" id="R21" | R21

| Harmful in contact with skin

scope="row" id="R22" | R22

| Harmful if swallowed

scope="row" id="R23" | R23

| Toxic by inhalation

scope="row" id="R24" | R24

| Toxic in contact with skin

scope="row" id="R25" | R25

| Toxic if swallowed

scope="row" id="R26" | R26

| Very toxic by inhalation

scope="row" id="R27" | R27

| Very toxic in contact with skin

scope="row" id="R28" | R28

| Very toxic if swallowed

scope="row" id="R29" | R29

| Contact with water liberates toxic gas.

scope="row" id="R30" | R30

| Can become highly flammable in use

scope="row" id="R31" | R31

| Contact with acids liberates toxic gas

scope="row" id="R32" | R32

| Contact with acids liberates very toxic gas

scope="row" id="R33" | R33

| Danger of cumulative effects

scope="row" id="R34" | R34

| Causes burns

scope="row" id="R35" | R35

| Causes severe burns

scope="row" id="R36" | R36

| Irritating to eyes

scope="row" id="R37" | R37

| Irritating to respiratory system

scope="row" id="R38" | R38

| Irritating to skin

scope="row" id="R39" | R39

| Danger of very serious irreversible effects

scope="row" id="R40" | R40

| Limited evidence of a carcinogenic effect

scope="row" id="R41" | R41

| Risk of serious damage to eyes

scope="row" id="R42" | R42

| May cause sensitisation by inhalation

scope="row" id="R43" | R43

| May cause sensitisation by skin contact

scope="row" id="R44" | R44

| Risk of explosion if heated under confinement

scope="row" id="R45" | R45

| May cause cancer

scope="row" id="R46" | R46

| May cause heritable genetic damage.

scope="row" id="R48" | R48

| Danger of serious damage to health by prolonged exposure

scope="row" id="R49" | R49

| May cause cancer by inhalation

scope="row" id="R50" | R50

| Very toxic to aquatic organisms

scope="row" id="R51" | R51

| Toxic to aquatic organisms

scope="row" id="R52" | R52

| Harmful to aquatic organisms

scope="row" id="R53" | R53

| May cause long-term adverse effects in the aquatic environment

scope="row" id="R54" | R54

| Toxic to flora

scope="row" id="R55" | R55

| Toxic to fauna

scope="row" id="R56" | R56

| Toxic to soil organisms

scope="row" id="R57" | R57

| Toxic to bees

scope="row" id="R58" | R58

| May cause long-term adverse effects in the environment

scope="row" id="R59" | R59

| Dangerous for the ozone layer

scope="row" id="R60" | R60

| May impair fertility

scope="row" id="R61" | R61

| May cause harm to the unborn child

scope="row" id="R62" | R62

| Possible risk of impaired fertility

scope="row" id="R63" | R63

| Possible risk of harm to the unborn child

scope="row" id="R64" | R64

| May cause harm to breastfed babies

scope="row" id="R65" | R65

| Harmful: may cause lung damage if swallowed

scope="row" id="R66" | R66

| Repeated exposure may cause skin dryness or cracking

scope="row" id="R67" | R67

| Vapours may cause drowsiness and dizziness

scope="row" id="R68" | R68

| Possible risk of irreversible effects

Combinations

class="wikitable"
scope="col" | Code Combination

! scope="col" | Statement

scope="row" id="R14/15" | R14/15

| Reacts violently with water, liberating extremely flammable gases

scope="row" id="R15/29" | R15/29

| Contact with water liberates toxic, extremely flammable gases

scope="row" id="R14/15/29" | R14/15/29

| Reacts violently with water, liberating toxic, extremely flammable gases

scope="row" id="R20/21" | R20/21

| Harmful by inhalation and in contact with skin

scope="row" id="R20/22" | R20/22

| Harmful by inhalation and if swallowed

scope="row" id="R20/21/22" | R20/21/22

| Harmful by inhalation, in contact with skin and if swallowed

scope="row" id="R21/22" | R21/22

| Harmful in contact with skin and if swallowed

scope="row" id="R23/24" | R23/24

| Toxic by inhalation and in contact with skin

scope="row" id="R23/25" | R23/25

| Toxic by inhalation and if swallowed

scope="row" id="R23/24/25" | R23/24/25

| Toxic by inhalation, in contact with skin and if swallowed

scope="row" id="R24/25" | R24/25

| Toxic in contact with skin and if swallowed

scope="row" id="R26/27" | R26/27

| Very toxic by inhalation and in contact with skin

scope="row" id="R26/28" | R26/28

| Very toxic by inhalation and if swallowed

scope="row" id="R26/27/28" | R26/27/28

| Very toxic by inhalation, in contact with skin and if swallowed

scope="row" id="R27/28" | R27/28

| Very toxic in contact with skin and if swallowed

scope="row" id="R36/37" | R36/37

| Irritating to eyes and respiratory system

scope="row" id="R36/38" | R36/38

| Irritating to eyes and skin

scope="row" id="R36/37/38" | R36/37/38

| Irritating to eyes, respiratory system and skin

scope="row" id="R37/38" | R37/38

| Irritating to respiratory system and skin

scope="row" id="R39/23" | R39/23

| Toxic: danger of very serious irreversible effects through inhalation

scope="row" id="R39/24" | R39/24

| Toxic: danger of very serious irreversible effects in contact with skin

scope="row" id="R39/25" | R39/25

| Toxic: danger of very serious irreversible effects if swallowed

scope="row" id="R39/23/24" | R39/23/24

| Toxic: danger of very serious irreversible effects through inhalation and in contact with skin

scope="row" id="R39/23/25" | R39/23/25

| Toxic: danger of very serious irreversible effects through inhalation and if swallowed

scope="row" id="R39/24/25" | R39/24/25

| Toxic: danger of very serious irreversible effects in contact with skin and if swallowed

scope="row" id="R39/23/24/25" | R39/23/24/25

| Toxic: danger of very serious irreversible effects through inhalation, in contact with skin and if swallowed

scope="row" id="R39/26" | R39/26

| Very Toxic: danger of very serious irreversible effects through inhalation

scope="row" id="R39/27" | R39/27

| Very Toxic: danger of very serious irreversible effects in contact with skin

scope="row" id="R39/28" | R39/28

| Very Toxic: danger of very serious irreversible effects if swallowed

scope="row" id="R39/26/27" | R39/26/27

| Very Toxic: danger of very serious irreversible effects through inhalation and in contact with skin

scope="row" id="R39/26/28" | R39/26/28

| Very Toxic: danger of very serious irreversible effects through inhalation and if swallowed

scope="row" id="R39/27/28" | R39/27/28

| Very Toxic: danger of very serious irreversible effects in contact with skin and if swallowed

scope="row" id="R39/26/27/28" | R39/26/27/28

| Very Toxic: danger of very serious irreversible effects through inhalation, in contact with skin and if swallowed

scope="row" id="R42/43" | R42/43

| May cause sensitization by inhalation and skin contact

scope="row" id="R45/46" | R45/46

| May cause cancer and heritable genetic damage

scope="row" id="R48/20" | R48/20

| Harmful: danger of serious damage to health by prolonged exposure through inhalation

scope="row" id="R48/21" | R48/21

| Harmful: danger of serious damage to health by prolonged exposure in contact with skin

scope="row" id="R48/22" | R48/22

| Harmful: danger of serious damage to health by prolonged exposure if swallowed

scope="row" id="R48/20/21" | R48/20/21

| Harmful: danger of serious damage to health by prolonged exposure through inhalation and in contact with skin

scope="row" id="R48/20/22" | R48/20/22

| Harmful: danger of serious damage to health by prolonged exposure through inhalation and if swallowed

scope="row" id="R48/21/22" | R48/21/22

| Harmful: danger of serious damage to health by prolonged exposure in contact with skin and if swallowed

scope="row" id="R48/20/21/22" | R48/20/21/22

| Harmful: danger of serious damage to health by prolonged exposure through inhalation, in contact with skin and if swallowed

scope="row" id="R48/23" | R48/23

| Toxic: danger of serious damage to health by prolonged exposure through inhalation

scope="row" id="R48/24" | R48/24

| Toxic: danger of serious damage to health by prolonged exposure in contact with skin

scope="row" id="R48/25" | R48/25

| Toxic: danger of serious damage to health by prolonged exposure if swallowed

scope="row" id="R48/23/24" | R48/23/24

| Toxic: danger of serious damage to health by prolonged exposure through inhalation and in contact with skin

scope="row" id="R48/23/25" | R48/23/25

| Toxic: danger of serious damage to health by prolonged exposure through inhalation and if swallowed

scope="row" id="R48/24/25" | R48/24/25

| Toxic: danger of serious damage to health by prolonged exposure in contact with skin and if swallowed

scope="row" id="R48/23/24/25" | R48/23/24/25

| Toxic: danger of serious damage to health by prolonged exposure through inhalation, in contact with skin and if swallowed

scope="row" id="R50/53" | R50/53

| Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment

scope="row" id="R51/53" | R51/53

| Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment

scope="row" id="R52/53" | R52/53

| Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment

scope="row" id="R68/20" | R68/20

| Harmful: possible risk of irreversible effects through inhalation

scope="row" id="R68/21" | R68/21

| Harmful: possible risk of irreversible effects in contact with skin

scope="row" id="R68/22" | R68/22

| Harmful: possible risk of irreversible effects if swallowed

scope="row" id="R68/20/21" | R68/20/21

| Harmful: possible risk of irreversible effects through inhalation and in contact with skin

scope="row" id="R68/20/22" | R68/20/22

| Harmful: possible risk of irreversible effects through inhalation and if swallowed

scope="row" id="R68/21/22" | R68/21/22

| Harmful: possible risk of irreversible effects in contact with skin and if swallowed

scope="row" id="R68/20/21/22" | R68/20/21/22

| Harmful: possible risk of irreversible effects through inhalation, in contact with skin and if swallowed

R-phrases no longer in use

  • R13: Extremely flammable liquefied gas.
  • R47: May cause birth defects.

See also

References

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