ABC of Safety in the Biological Sciences



FAST RED TR (Colour Index No. 37085)(C17H13N2O6S2Cl)

Red TR, fast red 5CT, fast red TRN, fast red salt TR, red TA, red TRS, red IX.
Dark red powder. Diazonium salt.
Heating produces toxic fumes of chlorine and nitrogen compounds.
This substance is an eye and respiratory tract irritant. It is toxic by ingestion.
Avoid eye contact.
Avoid inhalation or ingestion of the powder.
Keep away from heat.
Wash hands thoroughly after handling.
Wear protective clothing to avoid skin eye contact and inhalation. A long sleeved laboratory coat or gown, rubber gloves, safety goggles and a face mask as a minimum standard.
Skin ­ immediately wash the affected area with soap or mild detergent and large amounts of water until all evidence of the chemical has been removed (approximately 15 minutes). If irritation or pain develop and persist seek medical attention.
Eyes ­ immediately wash the affected eye with large amounts of water until all evidence of the dye has been removed (approximately 15 minutes). If irritation or pain persist seek immediate medical attention.
Inhalation ­ remove from the area of exposure to fresh air. Keep warm and allow to rest. If irritation or discomfort persist seek medical attention.
Ingestion ­ wash the mouth thoroughly with water and seek immediate medical attention.
Store in a cool, dry atmosphere away from heat.
Leather gloves, heavy face shield and laboratory coat. Work from behind a barricade (body shield or wall). Avoid unnecessary heat, friction or impact.
Absorb the liquid with paper or vermiculite. If it is a solid, dampen then brush on to paper with great care. Place in a plastic bag and remove outside for burning.
Sponge up with water, followed by decontamination with 10% ammonium ceric nitrate solution. 'Kill', by adding to a greater stoichiometric amount of ammonium ceric nitrate solution with agitation sufficient to provide suspension of all solids. Cool the reaction. The organic azides and heavy metal azides are explosive. Alkali and alkaline earth azides are not considered explosives under normal laboratory conditions. Keep the stock of azides very low. Stamp the date of receipt upon the package.


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