R Phrases

Risk phrases (R)

R 1 Explosive when dry
R 2 Risk of explosion by shock, friction, fire or other sources of ignition.
R 3 Extreme risk of explosion by shock, friction, fire or other sources of ignition.
R 4 Forms very sensitive explosive metallic compounds.
R 5 Heating may cause an explosion.
R 6 Explosive with or without contact with air.
R 7 May cause fire.
R 8 Contact with combustible material may cause fire.
R 9 Explosive when mixed with combustible material.
R 10 Flammable.
R 11 Highly flammable.
R 12 Extremely flammable.
R 14 Reacts violently with water.
R 15 Contact with water liberates extremely flammable gases.
R 16 Explosive when mixed with oxidizing substances.
R 17 Spontaneously flammable in air.
R 18 In use, may form flammable/ explosive vapour-air mixture.
R 19 May form explosive peroxides.
R 20 Harmful by inhalation.
R 21 Harmful in contact with skin.
R 22 Harmful if swallowed.
R 23 Toxic by inhalation.
R 24 Toxic in contact with skin.
R 25 Toxic if swallowed.
R 26 Very toxic by inhalation.
R 27 Very toxic in contact with skin.
R 28 Very toxic if swallowed.
R 29 Contact with water liberates toxic gas.
R 30 Can become highly flammable in use.
R 31 Contact with acids liberates toxic gas.
R 32 Contact with acids liberates very toxic gas.
R 33 Danger of cumulative effects.
R 34 Causes burns.
R 35 Causes severe burns.
R 36 Irritating to eyes.
R 37 Irritating to respiratory system.
R 38 Irritating to skin.
R 39 Danger of very serious irreversible effects.
R 40 Limited evidence of a carcinogenic effect.
R 41 Risk of serious damage to eyes.
R 42 May cause sensitization by inhalation.
R 43 May cause sensitization by skin contact.
R 44 Risk of explosion if heated under confinement.
R 45 May cause cancer.
R 46 May cause heritable genetic damage.
R 48 Danger of serious damage to health by prolonged exposure.
R 49 May cause cancer by inhalation.
R 50 Very toxic to aquatic organisms.
R 51 Toxic to aquatic organisms.
R 52 Harmful to aquatic organisms.
R 53 May cause long-term adverse effects in the aquatic environment.
R 54 Toxic to flora.
R 55 Toxic to fauna.
R 56 Toxic to soil organisms.
R 57 Toxic to bees.
R 58 May cause long-term adverse effects in the environment.
R 59 Dangerous for the ozone layer.
R 60 May impair fertility.
R 61 May cause harm to the unborn child.
R 62 Possible risk of impaired fertility.
R 63 Possible risk of harm to the unborn child.
R 64 May cause harm to breastfed babies.
R 65 Harmful: May cause lung damage if swallowed.
R 66 Repeated exposure may cause skin dryness or cracking.
R 67 Vapours may cause drowsiness and dizziness.
R 68 Possible risks of irreversible effects.

Combination of risk phrases (R)
R 14/15 Reacts violently with water, liberating extremely flammable gases.
R 15/29 Contact with water liberates toxic, extremely flammable gas.
R 20/21 Harmful by inhalation and in contact with skin.
R 20/22 Harmful by inhalation and if swallowed.
R 20/21/22 Harmful by inhalation, in contact with skin and if swallowed.
R 21/22 Harmful in contact with skin and if swallowed.
R 23/24 Toxic by inhalation and in contact with skin.
R 23/25 Toxic by inhalation and if swallowed.
R 23/24/25 Toxic by inhalation, in contact with skin and if swallowed.
R 24/25 Toxic in contact with skin and if swallowed.
R 26/27 Very toxic by inhalation and in contact with skin.
R 26/28 Very toxic by inhalation and if swallowed.
R 26/27/28 Very toxic by inhalation, in contact with skin and if swallowed.
R 27/28 Very toxic in contact with skin and if swallowed.
R 36/37 Irritating to eyes and respiratory system.
R 36/38 Irritating to eyes and skin.
R 36/37/38 Irritating to eyes, respiratory system and skin.
R 37/38 Irritating to respiratory system and skin.
R 39/23 Toxic: danger of very serious irreversible effects through inhalation.
R 39/24 Toxic: danger of very serious irreversible effects in contact with skin.
R 39/25 Toxic: danger of very serious irreversible effects if swallowed.
R 39/23/24 Toxic: danger of very serious irreversible effects through inhalation and in contact with skin.
R 39/23/25 Toxic: danger of very serious irreversible effects through inhalation and if swallowed.
R 39/24/25 Toxic: danger of very serious irreversible effects in contact with skin and if swallowed.
R 39/23/24/25 Toxic: danger of very serious irreversible effects through inhalation, in contact with skin and if swallowed.
R 39/26 Very toxic: danger of very serious irreversible effects through inhalation.
R 39/27 Very toxic: danger of very serious irreversible effects in contact with skin.
R 39/28 Very toxic: danger of very serious irreversible effects if swallowed.
R 39/26/27 Very toxic: danger of very serious irreversible effects through inhalation and in contact with skin.
R 39/26/28 Very toxic: danger of very serious irreversible effects through inhalation and if swallowed
R 39/27/28 Very toxic: danger of very serious irreversible effects in contact with skin and if swallowed.
R 39/26/27/28 Very toxic: danger of very serious irreversible effects through inhalation, in contact with skin and if swallowed.
R 40/20 Harmful: possible risk of irreversible effects through inhalation.
R 40/21 Harmful: possible risk of irreversible effects in contact with skin.
R 40/22 Harmful: possible risk of irreversible effects if swallowed.
R 40/20/21 Harmful: possible risk of irreversible effects through inhalation and in contact with skin.
R 40/20/22 Harmful: possible risk of irreversible effects through inhalation and if swallowed.
R 40/21/22 Harmful: possible risk of irreversible effects in contact with skin and if swallowed.
R 40/20/21/22 Harmful: possible risk of irreversible effects through inhalation, in contact with skin and if swallowed.
R 42/43 May cause sensitization by inhalation and skin contact.
R 48/20 Harmful: danger of serious damage to health by prolonged exposure through inhalation.
R 48/21 Harmful: danger of serious damage to health by prolonged exposure in contact with skin.
R 48/22 Harmful: danger of serious damage to health by prolonged exposure if swallowed.
R 48/20/21 Harmful: danger of serious damage to health by prolonged exposure through inhalation and in contact with skin.
R 48/20/22 Harmful: danger of serious damage to health by prolonged exposure through inhalation and if swallowed.
R 48/21/22 Harmful: danger of serious damage to health by prolonged exposure in contact with skin and if swallowed.
R 48/20/21/22 Harmful: danger of serious damage to health by prolonged exposure through inhalation, in contact with skin and if swallowed.
R 48/23 Toxic: danger of serious damage to health by prolonged exposure through inhalation.
R 48/24 Toxic: danger of serious damage to health by prolonged exposure in contact with skin.
R 48/25 Toxic: danger of serious damage to health by prolonged exposure if swallowed.
R 48/23/24 Toxic: danger of serious damage to health by prolonged exposure through inhalation and in contact with skin.
R 48/23/25 Toxic: danger of serious damage to health by prolonged exposure through inhalation and if swallowed.
R 48/24/25 Toxic: danger of serious damage to health by prolonged exposure in contact with skin and if swallowed.
R 48/23/24/25 Toxic: danger of serious damage to health by prolonged exposure through inhalation, in contact with skin and if swallowed.
R 50/53 Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
R 51/53 Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
R 52/53 Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
R 68/20 Harmful: possible risk of irreversible effects through inhalation.
R68/20/21 Harmful: possible risk of irreversible effects through inhalation and in contact with skin.
R 68/20/21/22 Harmful: possible risk of irreversible effects through inhalation, in contact with skin and if swallowed.
R68/20/22 Harmful: possible risk of irreversible effects through inhalation and if swallowed.
R68/21 Harmful: possible risk of irreversible effects in contact with skin.
R68/21/22 Harmful: possible risk of irreversible effects in contact with skin and if swallowed.
R 68/22 Harmful: possible risk of irreversible effects if swallowed.