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Tartrazine yellow Extra Pure
$ 16.20
Tartrazine Yellow Extra Pure is a high-purity, water-soluble synthetic azo dye used extensively in laboratory, pharmaceutical, and regulated food and cosmetic applications. It provides a vivid yellow color with a characteristic absorption around 427 nm, making it ideal for use in analytical procedures such as spectrophotometry and dye behavior research. Its Extra Pure grade ensures low impurity content and consistent performance for research and testing. Due to its sensitization potential and ecological persistence, controlled handling and proper disposal are advised.
Tartrazine yellow Extra Pure
PRIMARY USES
- Analytical Reagent & Laboratory Applications
- Used as a spectrophotometric and colorimetric standard in analytical chemistry and quality control assays
- Employed in calibration of UV-Vis spectrophotometers due to its consistent absorbance properties
- Applied in studies involving dye-sorption, degradation, and removal in environmental and chemical engineering research
- Serves as a model compound in research on azo dye behavior in aqueous systems
- Biochemical & Microbiology Research
- Occasionally used in staining protocols and in microbial identification to assess uptake and reaction with azo compounds
- Helps in toxicological evaluations and metabolic studies of azo dyes in biological systems
SECONDARY USES
- Food Industry (in regulated quantities)
- Widely used as a synthetic food colorant (E102) to impart bright yellow hue to beverages, candies, baked goods, and sauces
- Applied in processed snacks, custards, soft drinks, and gelatin desserts
- Subject to regulatory limitations in certain countries due to sensitivity or allergenic potential in some individuals
- Pharmaceutical Industry
- Used as a coloring agent in tablets, capsules, and syrups to improve product appeal and identification
- Common in multivitamin preparations and antacids
- Cosmetic and Personal Care Industry
- Utilized in products such as shampoos, bath gels, lotions, and makeup for vibrant yellow color
- May be found in toothpastes and liquid soaps
1. Basic Identification Attributes
- Chemical Name: Tartrazine
- CAS Number: 1934-21-0
- HS Code: 3204.12.00
- Molecular Formula: C₁₆H₉N₄Na₃O₉S₂
- Synonyms: FD&C Yellow No. 5, Acid Yellow 23, E102, C.I. 19140
2. Physical & Chemical Properties
- Physical State: Powder
- Color & Odor: Bright yellow to orange-yellow, odorless
- Solubility: Very soluble in water; insoluble in ethanol and most organic solvents
- Stability: Stable under normal temperature; sensitive to strong oxidizing and reducing agents
- pH Stability: Stable in acidic to neutral pH; may degrade under strong alkaline conditions
- UV-Vis Absorbance Max: ~427 nm in aqueous solution
3. Safety & Hazard Attributes
- Hazard Class (GHS Classification): Eye irritation (Category 2B), Skin sensitization (Category 1)
- NFPA Ratings: Health 1, Flammability 0, Reactivity 0
- Exposure Limits: No established OSHA PEL or ACGIH TLV
- Reactivity: Reacts with strong oxidizing agents; avoid mixing with incompatible chemicals
4. Storage & Handling Attributes
- Storage Conditions: Store in a tightly closed container in a cool, dry, and dark place
- Incompatible Materials: Strong oxidizers, reducing agents
- Container Type: Polyethylene, amber glass, or other light-resistant containers
- Shelf Life & Expiration Date: Typically stable for 2–3 years when stored properly
- Special Handling Requirements: Use in well-ventilated areas; avoid generating dust; wear PPE
5. Regulatory & Compliance Attributes
- Regulatory Status: Approved as food colorant (E102) in many regions, with usage limits; banned or restricted in some countries
- Listed in: FDA, EU, JECFA, and Codex Alimentarius for food use
- Transportation Restrictions: Not classified as hazardous for transport
- Waste Disposal Method: Dispose according to local environmental and chemical waste regulations
6. Environmental & Health Impact
- Ecotoxicity: Potential aquatic pollutant; high concentrations may impact aquatic organisms
- Persistence in Environment: Moderately persistent; azo bond may resist biodegradation
- Carcinogenicity/Mutagenicity: Not classified as carcinogenic by IARC; may cause hypersensitivity in susceptible individuals
- Biodegradability: Limited biodegradability under normal conditions; advanced treatment needed for full breakdown
SAFETY PRECAUTIONS
Personal Protective Equipment (PPE):
- Wear protective gloves (e.g., nitrile)
- Use chemical splash goggles
- Wear a lab coat or apron
- Use a dust mask or respirator in case of airborne particles
Handling:
- Handle in a well-ventilated area
- Avoid dust generation and contact with skin or eyes
- Do not ingest or inhale
- Wash hands after use
Storage:
- Store in a cool, dry place in a tightly sealed container
- Protect from light and incompatible materials
- Avoid exposure to moisture
FIRST AID MEASURES
Inhalation:
- Move to fresh air
- Seek medical attention if symptoms develop
Skin Contact:
- Wash affected area with soap and water
- Remove contaminated clothing
- Seek medical advice if irritation develops
Eye Contact:
- Rinse immediately with plenty of water for 15 minutes
- Seek medical attention if irritation persists
Ingestion:
- Rinse mouth with water
- Do not induce vomiting unless instructed
- Seek medical attention if symptoms appear
FIRE FIGHTING MEASURES
Flammability:
- Not flammable
Extinguishing Media:
- Use water spray, dry chemical, CO₂, or foam
Hazardous Combustion Products:
- May emit nitrogen oxides, sulfur oxides, and carbon oxides upon combustion
Firefighter Protection:
- Wear full protective clothing and self-contained breathing apparatus (SCBA)
- Avoid inhalation of combustion fumes
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