Tetramethyl ammonium hydroxide

91.15 g·mol−1

0.866 g/mL at 25 °C

°C

110 °C

80 ºF

R10 - Flammable
R11 - Highly flammable
R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed
R21 - Harmful in contact with skin
R21/22 - Harmful in contact with skin and if swallowed
R23 - Toxic by inhalation
R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed
R24/25 - Toxic in contact with skin and if swallowed
R25 - Toxic if swallowed
R27/28 - Very toxic in contact with skin and if swallowed
R34 - Causes burns
R35 - Causes severe burns
R36 - Irritating to eyes
R36/38 - Irritating to eyes and skin
R39/23/24/25 - Toxic: danger of very serious irreversible effects through inhalation, in contact with skin and if swallowed
R48/24 - Toxic: danger of serious damage to health by prolonged exposure in contact with skin
R52 - Harmful to aquatic organisms
R67 - Vapours may cause drowsiness and dizziness

S16 - Keep away from sources of ignition - No smoking
S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
S28 - After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer)
S36/37 - Wear suitable protective clothing and gloves
S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection
S45 - In case of accident or if you feel unwell seek medical advice immediately (show the label where possible)

3

C, T, F, T+, Xn

2-8°C

UN 3286 3 / PG 2