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Uranin Blue and Uranin Green – brilliant fluorescent dyes for leak detection and flow path testing
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  2. Measuring devices
  3. Leak detection
  4. Tracer dyes
  5. Uranine

Uranin Blue and Uranin Green

brilliant fluorescent dyes for leak detection and flow path testing

Fluorescent dye emulsion Uranin Blue
Fluorescent dye emulsion Uranin Blue
Fluorescent dye Uranin Green
Fluorescent dye Uranin Green
A demonstrative immersion bath treatment of typical components with Uranin Blue illustrates the excellent capillary flow of this fluorescent dye emulsion.
Uranin Blue: excellent capillary flow
A demonstrative immersion bath treatment of typical components with Uranin Blue illustrates the excellent capillary flow of this fluorescent dye emulsion.
Uranin Blue: excellent capillary flow
Uranin Green is preferably used if the solution is to be visible at the discharge point even to the naked eye. Fluorescence excitation via UV light can even produce quick tracer detection on large areas.
Uranin Green: highly visible even without UV excitation

Trotec Uranin – now twice as good for leak detection or flow path testing

The conventional Uranin powder is a tracer substance known as a recognised product for many years and one of the tracer dyes with the strongest fluorescent effect. This is reason enough for us to to back up this classic among the fluorescent dyes by offering Uranin Blue as a brilliant alternative. Both Uranin dyes are characterised by special properties, ensuring that you can always make the perfect Uranin choice for your task at Trotec:

Uranin Blue and Uranin Green from Trotec

Uranin Green

This UV fluorescent dye is easily visible even to the naked eye, which is why it is often used for marking waters. Greatly diluted, the highly water-soluble uranine powder is toxicologically harmless and ideally suited for all leak detections and tightness tests requiring the dyed water to penetrate capillaries. Therefore the leak becomes apparent with a clear time lag to the dye addition. Even tiny leaks can be rendered visible using a UV lamp.

The pure uranine powder as well as highly concentrated solutions in water have a dark red colour. They do not fluoresce. When further diluted, however, the uranine will dye the water in a yellow-green to green fluorescent colour, depending on the degree of dilution. Irradiation with an ultraviolet lamp makes this effect very clearly visible.

Uranin Blue

Just like Uranin Green, this fluorescent dye emulsion is characterised by its extremely brilliant fluorescence. In contrast to Uranin Green, Uranin Blue is not visible to the naked eye, though. Therefore, Uranin Blue in diluted form is practically invisible on almost all substrates in the visible spectrum.

The combination of an emulsion that is completely free of suspended matter and formaldehyde with particularly brilliant UV excitability makes Uranin Blue our best recommendation for leak detection applications, also allowing for the penetration of mineral construction materials, since due to its extremely small particle size, Uranin Blue is not only characterised by an especially good capillary flow but also by a very intensive blue fluorescence under UV excitation, enabling the time-saving UV examination of large areas. Uranin Blue is not supplied in the form of powder, but as a ready-to-use emulsion which can be diluted in water.

Important: Uranin Green and Uranin Blue must not be used as food colourant!

 

 


A few practical benefits:

  • UV fluorescent dyes with a strong brilliance and intensive excitability
  • Generally recognised tracer for leak detection or flow path testing
  • Chemical long-term stability for long-term studies
  • 100 % free of suspended matter and formaldehyde (Uranin Blue)
  • Good capillary flow
  • High yield

Which dye for which purpose?

Decision support for the selection of tracer dyes

Pure series Uranin Green Uranin Blue Luminat series
100 % food-grade ingredients
Biodegradable, natural metabolism
Harmless for the health of people and animals
Harmful in excessive doses
Yield
Capillary flow
Chemical long-term stability for long-term studies
Luminescence through UV light
Vividly coloured (also visible in dark, stagnant water)
Transparent, colour-neutral application
Generally accepted for leak detection or verifying the flow path *
Suitable for detecting pipe bursts *
Suitable for detecting leaky spots in the brickwork *

 * Chemical tracers (marking agents) are potentially toxic – depending on the treatment duration and exposure – hence applications with drinking water or groundwater discharges could be problematic. Based on the situation the natural colours of the Trotec Pure series can provide a deployment alternative that is 100 % organic. Otherwise Uranin Green represents the means of choice, especially for verifying the flow path or leak testing in brickwork. If the tracer must for instance not leave any colour traces on the item and at the same time needs to be chemically stable in the long run, we recommend using the UV fluorescent dyes of the Luminat series or Uranin Blue, which are only visible when irradiated with UV light. Compared to Luminat, Uranin Blue is furthermore characterised by an excellent capillary flow.


All of Trotec's tracer dyes at a glance:

 standard equipment

 optionally available

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Uranin Blue  1 L  show in Trotec online shop
Uranin Green 100 g show in Trotec online shop

Uranin Green 100 g

You save: 33 %

29.99 € 19.99 € incl. VAT Show net price (VAT not included)

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Tech. data for Uranin Blue

Tech. data for Uranin Green

Technical data
General information
  Article number 3.510.012.001
Dimensions
  Length (packaging included) [mm] 59
  Width (packaging included) [mm] 59
  Height (packaging included) [mm] 118
Weight
  (packaging excluded) [kg] 0.1
Standard scope of delivery
Standard scope of delivery
  Plastic bottle with tracer dye

 standard equipment

 optionally available

 not available

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