This Standard Reference Material (SRM) is intended for the verification and calibration of spectrophotometers used to measure the concentration of Solvent Red dyes employed as colorants to mark “off-road” diesel fuel. SRM 2037 is certified for the purity of the Solvent Red 24 Dye (C24H20N4O, molecular mass 380.45) and for the secondderivative-based molecular absorption coefficients (extinction ...

When large amounts of brilliant vital red are injected into the blood stream of dogs, the dye is gradually removed from circulation, and most of it is deposited in numerous phagocytic cells which are scattered throughout various organs and tissues. The dye occurs largely in the form of tiny red granules crowded together in the cytoplasm of these cells. If Niagara sky blue, a closely related dye...

The umu test system is a newly developed method to evaluate genotoxicities of a wide variety of environmental carcinogens and mutagens (Oda et al., 1985; Nakamura et al., 1987). In the present study, SOS-inducing activity of 142 synthetic dyes was investigated by the umu test using Salmonella typhimurium (TA1535/pSK1002) under the condition of absence and presence of rat liver microsomal fracti...

Azo dyes represent the world’s largest and most diverse group of synthetic dyes with uses spanning almost every industry (Pandey et al. 2007). Their significance to public health is great as these globally produced dyes have been proven to be carcinogenic upon biodegrading into their aromatic amines (Harmse 2013). But aside from their carcinogenic properties, azo dyes have another dangerous eff...

Textile industries are hailed as one of the major environmental polluters in world, owing to their release undesirable dye effluents. Synthetic dyes do not adhere fabric firmly and released into aquatic ecosystem effluent. Consequently, consistent wastewater from numerous textile without previous treatment has detrimental effects on human health. Treatment methods currently being used fail degr...

Azo dyes represents largest group and most versatile among synthetic dyes. Its Extensiveuse in industries of paper, photography, dying, printing, cosmetics and their subsequent release in industrial effluents by traditional methods of treatment is causing serious environmental problems worlwide. In the present studies a mixed bacterial consortium (azo 8) was isolated from dye polluted soil from...

Background & Aims of the Study: Discharge of textile industry colored wastewater without enough treatment into natural water resources cause serious pollution. Most of the conventional wastewater treatment methods are not effective enough to remove these dyes from wastewater. In this study, efficiency of electrocoagulation process with iron electrodes for treatment of Reactive Yellow 14 dye...

BACKGROUND Reactive Red 31, applied extensively in the commercial textile industry, is a hazardous and persistent azo dye compound often present in dye manufacturing and textile industrial effluents. Aspergillus bombycis strain was isolated from dye contaminated zones of Gujarat Industrial Development Corporation, Vatva, Ahmedabad, India. The decolorization potential was monitored by the decrea...

background: the presence of even a very small quantity of dye in water bodies is undesirable and affects the water bodies. dye removal from industrial waste water is significant; hence in this study, a material that is an economical waste product was employed to test its acid dye removing capacity from aqueous solution. methods: in this study, batch mode experiments were performed in the sorpti...

The decolourisation of the reactive Congo red dye from synthetic wastewater was studied using ElectroCoagulation (EC) technique. In an effort to increase removal efficiency, effects operating parameters including flow, inter electrode distance, conductivity, voltage, and Hydraulic Detention Time (HDT) were investigated. An electrochemical cell initially created with aluminum cathode anode. Foll...