This completely non-toxic granular powder absorbs
up to 500 times its own weight in water and is the 'secret' ingredient used in
applications ranging from babies nappies to perpetual growing plants. When
exposed to water, the powder transforms into a gel which holds the water for an
extended period.
Place a small pile of Hydrogel in the centre of a
Petri-dish and add drops of water from a syringe or pipette. The Hydrogel will
swell until it can absorb no more water. This can be a simple quantitative
experiment by weighing before and after water absorption.
This grade of Hydrogel can also be used in the lab
or prep-room to assist the growth of small plants, especially over weekends.
The amount added to the soil or growing medium needs to be determined by trial
and error.
Supplied in a 500g bag.
Learning Outcomes
Material Science: Smart Materials
Top Tips
Handling:
Hydrogel is non-toxic but normal industrial
hygiene precautions should be observed during handling.
Do not breathe dust.
Wash hands after handling
Storage:
Store under cool, dry conditions, 0-30°C, away
from direct contact with sunlight
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