Bright Dyes® FWT Red 25 Liquid
- Chemical Family
- Rhodamines
Bright Dyes® FWT Red 25 Liquid are proprietary formulations of Rhodamine dyes. Our Bright Dyes® FWT Red liquid products is specially formulated versions of Rhodamine WT dye for convenient use in water tracing and leak detection studies. This bright, fluorescent red dye is certified by NSF International to ANSI/NSF Standard 60 for use in drinking water. It may be detected visually, by ultraviolet light and by appropriate fluorometric equipment. Today it is most often used visually. Visually the dye appears bright pink to red, depending on its concentration and under ultraviolet light as bright orange.
Properties
- Physical Form
- Liquid
Product families
Applications
- Other Power Water & Utilities Applications
Product Families
- Specialty Dyes
- Other Processing Additives
Other characteristics
- Brand
- Bright Dyes
- Features
Good Light Fastness; Red offers greater contrast to heavy concentrations of green algae; If the water were yellow Bright Dyes FWT Red would be best; It's fluorescent properties offers greater apparent contrast than non-fluorescent blue; May be used for visual, ultraviolet and fluorometric inspections; Has a higher light fastness than FLT Yellow/Green; Resistant to the absorption of suspended matter; Best for moderate to large volumes of water, more than 20,000 gallons; Very rapid rate of dispersion
- Functions
- Dye
- Applicable Processes
- Leak Detection, Visual Detection, Water Tracing
- Leak Detection
- Visual Detection
- Water Tracing
- Note
1 In deionized water in 100 ml flask. Actual detectability and coverage in the field will vary with specific water conditions. 2 No significant change in fluorescence between 6 and 11 pH. 4 Measured on a Brookfield viscometer, Model LV, UL adapter, 60 rpm at 25°C
- Color
- Red (Fluorescent)
- Caution
These products may cause irritation and/or staining if allowed to come in contact wit the skin. The use of gloves and goggles is recommended when handling this product, as with any other dye or chemical.
- Markets
- Industrial
- Dye Type
- Fluorescent Dyes
- Appearance
- Clear dark red aqueous solution
- Pigment Type
- Fluorescent
- Technology
- Industrial Additives & Materials
- Pigments & Colorants
- HIGHLIGHTS
The dye is resistant to absorption on most suspended mater in fresh and salt water. Compared to Bright Dyes FLT Yellow/Green products it is significantly more resistant to degradation by sunlight and when used in fluorometry, stands out much more clearly against background fluorescence. As always the use and suitability of these products for any specific application should be evaluated by a qualified hydrologist or other industry professional.
- Certifications and Compliance
- NSF Approved
- Industrial Additives Features
- Good Light Fastness
- Industrial Additives Functions
- Dye
Technical data
Table 1 of 1
9 rows| Characteristic | Value | Unit |
|---|---|---|
| Detect Ability of Active Ingredient¹ | max. 100 | ppb |
| Detect Ability of Active Ingredient¹ | max. 100 | ppb |
| Maximum Absorbance Wavelength² | 550 - 588 | nm |
| Maximum Absorbance Wavelength² | 550 - 588 | nm |
| Viscosity ⁴ | 1.3 | cps |
| Viscosity ⁴ | 1.3 | cps |
| NSF (Max use level in potable water) | 0.8 | ppb |
| pH Value (25°C) | 8.2 - 9.2 | — |
| Specific Gravity (25°C) | 0.98 - 1.08 | — |
