R risk phrases

Nature of the particular risks attributed to the dangerous substances and preparations (R phrases) 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 sensitisation by inhalation R 43 May cause sensitisation 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.   Combinations of R phrases 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 42/43 May cause sensitisation 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 R 68/21 Harmful: possible risk of irreversible effects in contact with skin R 68/22 Harmful: possible risk of irreversible effects if swallowed R 68/20/21 Harmful: possible risk of irreversible effects through inhalation and in contact with skin R 68/20/22 Harmful: possible risk of irreversible effects through inhalation and if swallowed R 68/21/22 Harmful: possible risk of irreversible effects in contact with skin and if swallowed R 68/20/21/22 Harmful: possible risk of irreversible effects through inhalation, in contact with skin and if swallowed

 

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