Fluorescein | Conscious Craft
Fluorescein | Conscious Craft
Fluorescein | Conscious Craft
Stemcell Science


sku: FL.1718

Free postage on orders over £50 to UK mainland. Standard UK delivery 2-4 days £2.99

For more options including Free Collection from Forest Row, see shipping and returns here

About Stemcell Science Fluorescein

10g of fluorescein salt powder in a vial. This red powder is a dye that turns an intense yellow-green when mixed with water. Fluorescein was first made in 1871 and it has since found use in many niche applications thanks to its unique colouring properties and ultraviolet fluorescence. It is commonly used as a medical dye to detect and diagnose various eye injuries and also to trace the flow of streams, groundwater, and glacier water. When mixing with water, a tiny amount goes a long way.

This vial should be enough to dye at least 100 gallons of water. It is organic and harmless to the environment at these low concentrations. The fluorescein reaction is pH-dependent. Once it has reacted in water, the color can be altered by changing the acidity of the water. Even though fluorescein is commonly used in medical applications, please do not consume it.

Diameter: 2.5"

From United States of America

*Please Note: This is not a toy & requires adult supervision

Science Kits

Shopping with Conscious Craft

  • 👍🏽 Spend £50 and get Free UK Delivery
  • 💪🏼 Order by 1pm (GMT) for next day delivery
  • 📦 No quibble 60 day returns

The Conscious Craft Philosophy

Children instinctively create and live in an imaginative world. We bring that to life here at Conscious Craft by offering you the best natural toys and craft materials we can find. We believe that giving children the right materials, they will make and play with beautiful things that last a lifetime.

£50.00 away from free UK standard delivery
Subtotal: £0.00 GBP
View cart


Customers who bought these items also bought

Purchase options
Select a purchase option to pre order this product
Countdown header
Countdown message