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Indigo Carmine 0.1% Aqueous Solution
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Description
Indigo Carmine 0.1% Aqueous Solution
Other Names: Acid Blue 74 solution, C.I. 73015 solution
CAS Number (Indigo Carmine): 860-22-0
Sum Formula (dye): C₁₆H₈N₂Na₂O₈S₂
Appearance: Dark blue liquid solution
Indigo Carmine 0.1% is an aqueous solution of the synthetic dye Indigo Carmine, commonly used as a color indicator and tracer dye in laboratory and industrial applications. It is valued for its distinct color change under redox conditions.
Chemical and Physical Properties
Concentration: 0.1% (w/v) in water
Solubility: Completely miscible with water
pH: Neutral to slightly acidic
Color: Intense blue
Stability: Stable under normal conditions; avoid strong light or oxidizers
Applications
Used as an oxidation-reduction indicator in titrations and analytical chemistry
Employed as a tracer dye in water systems and leak detection
Applied in technical processes requiring clear visual indicators
Laboratory reagent for visualization of chemical changes
Safety
Signal Word: Warning
Hazard Statements
H317: May cause an allergic skin reaction.
Precautionary Statements
P261: Avoid breathing dust.
P272: Contaminated protective clothing should not be taken out of the workplace.
P280: Wear protective gloves.
P302 + P352: IF ON SKIN: Wash with plenty of water.
P333 + P313: If skin irritation or rash occurs: Get medical advice/attention.
P362 + P364: Take off contaminated clothing and wash it before reuse.
First Aid Measures
Eye Contact: Rinse with water if accidental splashing occurs
Skin Contact: Wash with water and mild soap
Inhalation: Not applicable (aqueous solution)
Ingestion: Rinse mouth and seek medical attention if large quantities are ingested
Handling and Storage
Store in a cool, dark place in tightly sealed containers
Avoid exposure to direct sunlight and high temperatures
Prevent contamination and keep containers tightly closed