Methyllithium

21.98 g·mol−1

0.85 g/mL at 20 °C

70-71°C

5 ºF

colorless to yellowish solution

UN 3399 4.3/PG 1

R11 - Highly flammable
R12 - Extremely flammable
R14/15 - Reacts violently with water, liberating extremely flammable gases
R15 - Contact with water liberates extremely flammable gases
R17 - Spontaneously flammable in air
R19 - May form explosive peroxides
R22 - Harmful if swallowed
R34 - Causes burns
R36/37 - Irritating to eyes and respiratory system
R36/37/38 - Irritating to eyes, respiratory system and skin
R36/38 - Irritating to eyes and skin
R37 - Irritating to respiratory system
R40 - Limited evidence of a carcinogenic effect
R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment
R65 - Harmful: may cause lung damage if swallowed
R66 - Repeated exposure may cause skin dryness or cracking
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
S30 - Never add water to this product
S36/37 - Wear suitable protective clothing and gloves
S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection
S43 - In case of fire use ... (indicate in the space the precise type of fire-fighting equipment. If water increases the risk add - Never use water)
S45 - In case of accident or if you feel unwell seek medical advice immediately (show the label where possible)
S60 - This material and its container must be disposed of as hazardous waste
S61 - Avoid release to the environment. Refer to special instructions/safety data sheet
S62 - If swallowed, do not induce vomiting: seek medical advice immediately and show this container or label where possible

4.3

F+, C, N, F, Xn, Xi

2-8°C

UN 3399 4.3 / PG 1