Bromine by Polarized Light Microscopy

About:

Bromine (Symbol: Br) is a chemical element which was isolated independently by two chemists in 1825 and 1826. Bromine in its elemental state is a fuming red / brown liquid at room temperature, and is both corrosive and toxic having properties similar to that of chlorine and iodine. Bromine does not typically occur in its elemental form, instead in colourless crystalline halide salts (similar to table salt).

How it was done:

Small amounts of a Bromine standard (Bromine in Nitric Acid) were concentrated by progressively evaporating the Nitric acid from the solution to lead to a greater concentration. As Nitric is VERY harmful this was done in full PPE in a fume cupboard. Once the Nitric acid had been reduced to a higher concentration a small amount (a few drops) were placed on a concave slide and left to evaporate at just under 85 Degrees C (the boiling point of nitric).

The image was then captured using my normal polarized microscopy setup, which included;

Because the depth of field is relatively small, some images did require focus stacking which is where Helicon Remote (affiliate-link) & Focus came into the picture (pardon the pun).

Images: (Click to enlarge)

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TravisH @travishale

Passionate scientist, and hobby photographer making my way through the world with the help of Family and Friends.

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