Chemistry_pigments green parsley 4t ESO

1. ALBERT SUBIRATS, JOAN ROCA I ENRIC JORNET

2. Preparing
the parsley
We were extracting all the
leaves of the parsley.

3. Preparing
the parsley
There, 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.

4. Preparing
the parsley
We were crushing the
parsley with a metallic
spatula.

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

6. Chemical
compound
When 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

7. Parsley
spectrum
The 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.