Ozone Specialities

Reactive blue dyes are a class of synthetic dyes used primarily in the textile industry for coloring fabrics. They are called "reactive" because they form a covalent bond with the fibers, typically cotton, during the dyeing process. This bond makes the dyeing more durable and resistant to washing and fading. Reactive blue dyes are popular for their vibrant colors and their ability to provide high color fastness. They are also valued for their versatility, as they can be used in various dyeing processes including batch, continuous, and exhaust methods. Environmental concerns related to the use of synthetic dyes have led to advancements in more sustainable dyeing technologies.

Methyl red is a pH indicator. It is a red to yellow dye used to measure pH levels in aqueous solutions. Methyl red changes color from red at a pH below 4.4 to yellow at a pH above 6.2, making it useful in titrations and various analytical applications. It is commonly used in microbiological tests, such as the methyl red test for bacterial fermentation in the IMViC series. Additionally, methyl red is employed in some industrial processes and as a dye in certain products. Due to its color change range, it is valuable for precise pH monitoring.

Basic Blue 9, also known as Methylene Blue, is a distinctive blue dye with the chemical formula C₁₆H₁₈ClN₃S and CAS number 61-73-4. It is commonly found as a dark green or bronze powder that is soluble in water. This versatile dye is used across various industries for coloring paper, textiles (especially silk and wool), plastics, and inks, and it also serves as a biological stain and in medical applications.