Sodium Fluorescein 1%

Fluorescein Sodium in 1% water solution. This format allows a better handling of the fluorescein, since it is practically ready to use as it is already dissolved.

If you prefer powdered sodium fluorescein, you can find it here: buy fluorescein sodium powder.

IDENTIFICATION AND PROPERTIES

1.1 Product identifier.

Product name: FLUORESCEIN SODIUM 1%
Product code: ALQ0056
Product type: Mixture. Category: Fluorescent tracers.

Aspect:
Physical state (20ºC): liquid.
Colour: saturated brown (when diluted it changes to the characteristic deep yellow of dilute sodium fluorescein)
Odour: odourless.
Olfactory threshold: Not relevant due to the nature of the product, providing no information regarding its hazards.

Volatility:
Initial point/boiling point/boiling range: ≥100 ºC, aqueous solution (Estimate based on Regulation (EC) No. 1272/2008 indications and components).

Flammability:

Flammability: This material is combustible, but not readily flammable.
Flash point: >200 °C (Estimate/Calculation method (2.6.4.3)); fluorescein 217.6 °C at 967.3 hPa (ECHA, closed cup method, Pensky-Martens).
Auto-flammability temperature: N.A. fluorescein is not auto-flammable, decomposes >300°C (ECHA).

Product features:

Melting/freezing point: N.D. As an aqueous solution it is expected to freeze ≤0ºC.
Water solubility: soluble in water (fluorescein solubility in water > 100 g/l, 20 °C).
Lipid solubility:N.D.
Partition coefficient (n-octanol/water) (logarithmic value): N.A.; fluorescein 0,34 (pH 7) (ECHA).
Bulk density: N.D.
Relative density (water=1): 0.8-1.0 (estimate based on components).

1% SODIUM FLUORESCEIN DOSE

The dose of fluorescein will vary greatly depending on the application of fluorescein.

If you want to colour a mass of water, 2 ml of 1% Sodium Fluorescein per litre of water will be sufficient. If you want to detect individual drops and differentiate them from uncoloured water drops, we recommend at least 10ml of the solution per litre of water. The use of a torch or UV light will help you to detect the leak.