Chemistry_pigments green parsley 4t ESO

Post on 12-Feb-2017

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Transcript of Chemistry_pigments green parsley 4t ESO

Green ALBERT SUBIRATS, JOAN ROCA I ENRIC JORNET

Preparing the parsleyWe were extracting all the leaves of the parsley.

Preparing the parsleyThere, we were chopping the parsley with a knife, because we need that it was in little pieces, because when we had to put it in alcohol, we could extract all of it.

Preparing the parsleyWe were crushing the parsley with a metallic spatula.

Preparing the parsleyThere we mixed the parsley with alcohol to extract the natural colorant.

Chemical compoundWhen we mixed the parsley with alcohol, we could extract Chlorophyll A.

We diluted the natural pigment for to shows the spectrum more exactly.

PIGMENT

DILUTED WITH WATER

Parsley spectrumThe spectrum shows that the colours absorbed are blue and violet and red and orange, but the zone of green and yellow is reflected because the natural colorant is green.