Water leak detection
UV Fluorescent Colored Tracers
UV Fluorescent Clear Tracers
Food Tracers for Water
Non-fluorescent color tracers
Fluorescein: fluorescent tracer for leak detection
Equipment for Tracing and Diagnostics
UV Lamp Kits
Dosing accessories and equipment
Complete Air Conditioning Tracing Kits
Complete Oil and Fuel Tracing Kits
Complete Water Tracing Kits
Smoke generators for pipes, sewer networks and airtightness testing
Inflatable pipe plugs for sewer pipes, leak testing and network interventions
Detection needles
Tracing in Natural Environments
Fluorimeters and Data Loggers
Fluorescent Tracers for Maritime Safety
Powder Tracers
Concentrated Liquid Tracers
Sodium Fluorescein / Uranine
Rhodamine WT 20%
Eosin
Sulforhodamine B
Potassium iodide
Amino G Acid: fluorescent tracer for studies in natural environments
Tracing in Industrial Environments
Oil and Fuel Tracers
Colorants and Markers
Fluorescent UV Markers
Powder Contrast for Industrial Filtration
Tracers for Air Conditioning and Refrigeration Systems
Water & sanitation: tracing solutions for networks and technical installations
Contamination Simulation
Tracers for Dry Contamination Simulations
Tracers for Wet Contamination Simulations
Contamination Simulation Kit
Eosin is a fluorescent tracer used to visualise water flows, track water circulation and carry out hydrological studies in contexts where a different fluorescence colour from sodium fluorescein is required. Visible under UV light and usable depending on observation conditions, it is a relevant solution for certain flow tests, multi-tracer studies, karst investigations and environmental monitoring. At Fluotechnik, we offer eosin-based solutions designed for hydrogeologists, engineering consultancies, cavers and environmental professionals looking for a reliable tracer for field studies.
Track water circulation in natural environments, underground networks and certain hydraulic structures.
Eosin helps diversify tracing approaches and can be useful in multi-tracer protocols.
Transit tests, flow monitoring, hydraulic connection studies, dispersion tests and natural-environment observations.
A valuable alternative when sodium fluorescein is not the only substance considered.
Fluotechnik advises you on preparation, dosage and the right detection equipment for your project.
Eosin is a water-soluble fluorescent dye used as a tracer to visualise and track water movement in a range of natural or technical contexts. Its characteristic fluorescence makes it useful for certain hydrological studies, flow tests and field observations, especially when it is relevant to use a fluorescence colour different from sodium fluorescein / uranine. It can therefore help distinguish several water paths, compare different circulation hypotheses or support more refined tracing protocols.
Used in hydrogeology, speleology, environmental engineering and dispersion studies, eosin can be applied to:
Fluotechnik offers a wide range of fluorescent tracers, technical dyes and measurement equipment dedicated to hydrological tracing and natural environment studies. Sodium fluorescein / uranine, Rhodamine WT, Sulforhodamine, Tinopal CBS-X, sodium naphthionate and multi-tracer solutions allow us to meet a wide variety of flow monitoring, dispersion testing and water circulation analysis protocols. Thanks to this complete range of products and detection equipment, professionals can select the most suitable solution according to the environment being studied, the measurement method used and the level of precision required for hydrological, environmental or hydraulic studies.
Choosing an eosin-based solution from Fluotechnik means using a relevant fluorescent tracer for hydrological studies where colour, detection method or a multi-tracer approach plays an important role. Our references are designed to support professionals in field tests, circulation studies and natural-environment observations with a reliable solution adapted to the actual use context.
Our references are selected to ensure usable fluorescence and implementation consistent with field-study requirements.
Eosin can be an interesting alternative or complement in projects comparing several tracing substances.
Our team helps you choose the right concentration, injection method and equipment for your protocol.
We maintain product availability so you can launch tests and monitoring campaigns quickly.
Hydrogeology, speleology, environmental work and water circulation studies: our solutions address real field needs.
See how eosin can be used for hydrological tracing, water circulation testing and natural-environment observations. These videos help explain tracer preparation, field implementation, monitoring methods and the value of eosin in certain study protocols or in comparison with other fluorescent tracers.
Discover our Hydrology & Fluorescent Tracing catalogue: a complete selection of professional solutions dedicated to tracing water flows, studying underground networks and detecting hydraulic transfers. Fluorescent dyes, fluorimeters, detection equipment and technical accessories...
Eosin is a fluorescent dye used in various scientific and technical contexts. In hydrology and tracing, it can be used to visualise water circulation, track a flow or distinguish certain hydraulic pathways thanks to its characteristic fluorescence.
Eosin can be used to track water circulation, study connections between several points, compare different tracers or support multi-tracer tests. It is particularly useful when a substance different from sodium fluorescein is required.
Dosage depends on the water volume to be traced, the expected travel distance, environmental conditions and the chosen detection method. There is no single dosage valid for every case. The quantity should therefore be adapted to the study protocol and, if necessary, discussed with our technical support.
Eosin can be used on its own, but it is also valuable in multi-tracer approaches. In that case, it complements other fluorescent substances to distinguish several circulations or compare several hydraulic hypotheses.
The main difference lies in the fluorescent signature, observed colour and certain use contexts. Sodium fluorescein / uranine is a very common reference tracer in hydrology, while eosin may be chosen when a different fluorescent response is required or when a comparative protocol is being set up.
Eosin can be used in hydrogeology, speleology, environmental studies, water circulation analysis, dispersion tests and certain technical or scientific monitoring applications where the aim is to observe a flow or distinguish hydraulic pathways.
Depending on the protocol, detection may be visual in some conditions or carried out with suitable measuring equipment such as a fluorometer. The choice depends on the required precision, target concentrations and the nature of the field campaign.
The choice depends on the environment being studied, the fluorescence colour required, the type of detection, the study logic and any need to combine several tracers. This page helps identify in which cases eosin may be a relevant solution among the other substances offered by Fluotechnik.
Eosin is an interesting solution for studies where water circulation visualisation must rely on a fluorescence different from that of more conventional tracers. In hydrology, environmental work or speleology, it can be used to observe a flow, compare several pathways, test connections or complement multi-tracer protocols. It therefore meets specific field needs where the diversity of substances used improves the reading and interpretation of results.
Choosing the right formulation mainly depends on:
By bringing together the main eosin-related references on one page, Fluotechnik helps you compare the options and select the solution best suited to your project. To go further, you can also explore our other tracing substances, our measuring equipment and our content dedicated to hydrological monitoring methods and field observation protocols.
Depending on the environment being studied, the colour required, the detection method and the type of monitoring implemented, eosin is not always the only relevant solution. Fluotechnik helps you guide your project towards the right fluorescent tracer, the right measuring equipment or the right observation method according to your field context, study objectives and expected level of precision.