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|LC4875 Potassium hydride
(suspension 35% in paraffin oil) for synthesis
|Order number||Packaging||Quantity||Price €|
|AC31875||Glass bottle||25 g||59.85|
|HS Code||2850 00 20|
|Molar mass||40.11 g/mol|
|Chemical and physical data|
|Solubility||(20 °C) (rigorous decomposition)|
|Molar mass||40.11 g/mol|
|Density||1.45 g/cm3 (20 °C)|
|Boiling point||316 °C (1013 hPa) Information refers to the main component.|
|Flash point||160 °C Information refers to the main component.|
|R Phrase||R 14/15-34
Reacts violently with water, liberating extremely flammable gases.Causes burns.
|S Phrase||S 7/8-26-36/37/39-43-45
Keep container tightly closed and dry.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing, gloves and eye/face protection.In case of fire, use sand. Never use water.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
|Categories of danger||highly flammable, corrosive|
|Storageclass||4.3 Materials that form flammble gases in contact with water|
|WGK||WGK 1 slightly water endangering|
Alkali and alkaline-earth metals should be taken up in an inert solvent and neutralized by adding 2-propanol (Cat. No. 100995) dropwise with stirring. Should the reaction be more violent than expected, conversion should be carried out with tert-butanol or octanol. Caution: This reaction produces hydrogen, which can form explosive mixtures; take necessary precautions. When the reaction has ceased, add water dropwise; neutralize; container D. In the case of alkali or alkaline-earth borohydrides, add methanol (Cat. No. 106008) with stirring; in the case of alkali or alkaline-earth amides and hydrides, organoaluminium and organotin hydrides, add 2-propanol (Cat. No. 100995) dropwise. The substances, which are usually in solid form, should be previously suspended in an ether! When the respective reaction has ceased, hydrolize with water; then neutralize. Container D or E. Lithium aluminium hydride must also be destroyed by slurrying in an ether. Under an inert gas and with thorough stirring, add dropwise a 1:4 mixture of ethyl acetate (Cat. No. 822277) and the ether used to prepare the slurry. Always ensure thorough mixing (stirring)! Container A.
|Declaration (transport by sea) IMDG-Code||UN 1409 METAL HYDRIDES, WATER-REACTIVE, N.O.S.(POTASSIUM HYDRIDE), 4.3, I|
|Declaration (transport by air) IATA-DGR||UN 1409 METAL HYDRIDES, WATER-REACTIVE, N.O.S.(POTASSIUM HYDRIDE), 4.3, I|
|Assay (by gasvolumetry)||∼35%|