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Lab Safety

Specific Chemicals
Ethidium Bromide - not as toxic as you might think

Specific Functional Groups

Relating ppm to mg/m3
mg/m3  =  ppm *  MW

A simple test for peroxides in water-immiscible solvents

Shake 2 ml of solvent with 1 ml of a freshly prepared KI solution (10% in water) and a drop of starch indicator solution, a blue color is rapidly developing if peroxides are present (a faint yellow/brown color after addition of KI indicates low levels of peroxides).

Subpages (1): Azides