Barium bis(2-chloro-5-((2-hydroxy-1-naphthyl)azo)toluene-4-sulphonate) D&C Red No 9
CAS #: 5160-02-1
EC Number: 225-935-3
FIRE & EXPLOSION
Combustible. Gives off irritating or toxic fumes (or gases) in a fire.
NO open flames.
Use dry powder, carbon dioxide, water spray.
PREVENT DISPERSION OF DUST!
Use local exhaust or breathing protection.
Fresh air, rest.
Remove contaminated clothes. Rinse skin with plenty of water or shower.
Wear safety goggles or eye protection in combination with breathing protection if powder.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Do not eat, drink, or smoke during work.
CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water.
According to UN GHS Criteria
Transportation UN Classification
PIGMENT RED 53, BARIUM SALT (2:1)
PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance YELLOW-TO-RED POWDER.
Chemical dangers Decomposes on heating. This produces toxic fumes including nitrogen oxides and sulfur oxides.
Formula: C17H13ClN2O4S. 1/2Ba
Molecular mass: 444.5
Decomposes at 330°C Density: 1.66 g/cm³ Solubility in water, g/100ml at 20°C: >0.00013 Auto-ignition temperature: >340°C Octanol/water partition coefficient as log Pow: -0.49
EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by ingestion.
Effects of short-term exposure
Inhalation risk A harmful concentration of airborne particles can be reached quickly when dispersed, especially if powdered.
Effects of long-term or repeated exposure The substance may have effects on the blood and spleen.
OCCUPATIONAL EXPOSURE LIMITS
Environmental effects of the substance have been adequately investigated, but no significant effects have been found.
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