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Metanil Yellow is used as indicator. Metanil yellow is useful in spectrophotometric methods to determine the presence of trace amounts of nitrates and nitrites in solution. The method utilizes the fact that potassium bromate can catalyze the discoloring of Metanil yellow which can then be analyzed by spectrophotometry.
T.N. Nagaraja.; T. Desiraju. Effects of chronic consumption of metanil yellow by developing and adult rats on brain regional levels of noradrenaline, dopamine and serotonin, on acetylcholine esterase activity and on operant conditioning. Food and Chemical Toxicology. 1993, 31, (1), 41-44.
Ming-Shen Chiou.; Guo-Syong Chuang. Competitive adsorption of dye metanil yellow and RB15 in acid solutions on chemically cross-linked chitosan beads. Chemosphere. 2006, 62, (5), 731-740.
Hazard Statements: H317-H361
May cause an allergic skin reaction. Suspected of damaging fertility or the unborn child.
Precautionary Statements: P201-P202-P261-P272-P280g-P281-P302+P352-P308+P313-P333+P313-P363-P501c
Obtain special instructions before use. Do not handle until all safety precautions have been read and understood. Avoid breathing dust/fume/gas/mist/vapours/spray. Contaminated work clothing should not be allowed out of the workplace. Wear protective gloves. Use personal protective equipment as required. IF ON SKIN: Wash with plenty of soap and water. IF exposed or concerned: Get medical advice/attention. If skin irritation or rash occurs: Wash contaminated clothing before reuse. Dispose of contents/ container to an approved waste disposal plant