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Methyl Orange Disodium Salt Extra Pure
Original price was: $ 17.70.$ 17.63Current price is: $ 17.63.
Methyl Orange Disodium Salt Extra Pure is a high-purity pH indicator commonly used in titrations and analytical chemistry to determine acidity levels. It exhibits a sharp color change from red in acidic environments to yellow in alkaline conditions, typically within the pH range of 3.1 to 4.4. This disodium salt form ensures excellent solubility in water, making it especially reliable for use in aqueous solutions. Its stability and sensitivity make it ideal for laboratory applications involving strong acid–base reactions, particularly in titrations of mineral acids. Methyl Orange Disodium Salt Extra Pure is a trusted choice for consistent and accurate results in both educational and professional lab settings.
Methyl Orange Disodium Salt Extra Pure
Primary Uses
- pH Indicator in Titration – Widely used in acid-base titrations to detect endpoint, changing color in the pH range of 3.1 (red) to 4.4 (yellow).
- Analytical Reagent – Utilized in qualitative and quantitative analysis of acids and bases, especially in educational and research laboratories.
Secondary Uses
- Educational Demonstrations – Commonly used in chemistry education to visually demonstrate pH changes and titration procedures.
- Dye Component – Occasionally used in the formulation of dyes or pigments for academic demonstrations.
- Calibration of pH Meters – Sometimes used to verify pH meter performance in conjunction with buffer standards.
| PACK SIZE | 25 grams Plastic Tin |
|---|
1. Basic Identification Attributes
- Chemical Name: Methyl Orange Disodium Salt
- Synonyms: Sodium salt of Methyl Orange, Acid Orange 52, C.I. 13025
- CAS Number: 547-58-0
- Molecular Formula: C₁₄H₁₄N₃NaO₃S
- Molecular Weight: 327.33 g/mol
- Appearance: Orange-red powder
- Odor: Odorless
- Solubility: Soluble in water
- Grade: Extra Pure
- pH Indicator Range: 3.1 (red) to 4.4 (yellow)
2. Safety & Hazard Attributes
- GHS Classification:
- Not classified as hazardous under GHS in typical lab quantities, but caution is advised.
- Hazard Statements (if any):
- May cause skin or eye irritation with prolonged exposure
- Avoid inhalation of dust
- Precautionary Statements:
- P280: Wear protective gloves/protective clothing/eye protection
- P261: Avoid breathing dust
- P264: Wash hands thoroughly after handling
- Personal Protective Equipment (PPE):
- Gloves
- Safety goggles
- Lab coat
- Use under fume hood or with dust extraction if in powder form
- First Aid Measures:
- Inhalation: Move to fresh air; seek medical help if symptoms persist
- Skin Contact: Wash with soap and water
- Eye Contact: Rinse cautiously with water for several minutes
- Ingestion: Rinse mouth with water; seek medical attention if unwell
- Fire Hazards:
- Non-flammable
- Use standard extinguishing agents (CO₂, foam, dry chemical) for packaging materials
3. Storage & Handling Attributes
- Storage Conditions:
- Store in a cool, dry place
- Keep container tightly closed
- Protect from moisture and direct sunlight
- Handling Tips:
- Minimize dust generation
- Avoid contact with skin and eyes
4. Laboratory Applications
- Primary Uses:
- pH indicator in acid-base titrations
- Detects endpoint in strong acid vs. weak base titrations
- Secondary Uses:
- Teaching experiments in analytical and general chemistry
- Dyeing agent in some microbiology procedures (not for staining)
SAFETY PRECAUTIONS
Personal Protective Equipment (PPE):
- Wear a lab coat, nitrile gloves, and protective goggles.
- Use a dust mask or work in a fume hood to prevent inhalation of powder.
Handling:
- Avoid inhalation, ingestion, and contact with skin and eyes.
- Handle with care to avoid creating dust.
- Wash hands thoroughly after handling.
Storage:
- Store in a cool, dry, and well-ventilated area.
- Keep the container tightly closed and protected from moisture and light.
- Keep away from strong oxidizing agents.
FIRST AID MEASURES
Inhalation:
- Move the person to fresh air.
- Seek medical attention if symptoms such as coughing or difficulty breathing occur.
Skin Contact:
- Wash with soap and plenty of water.
- Remove contaminated clothing.
- Get medical advice if irritation or a rash appears.
Eye Contact:
- Rinse cautiously with water for several minutes.
- Remove contact lenses if present and easy to do.
- Continue rinsing and seek medical attention if irritation persists.
Ingestion:
- Rinse your mouth thoroughly with water.
- Do not induce vomiting.
- Seek medical attention immediately.
FIRE FIGHTING MEASURES
Flammability:
- Not highly flammable, but fine dust may form combustible dust-air mixtures.
Extinguishing Media:
- Use dry chemicals, CO₂, or foam.
- Water spray may be used to cool surfaces but avoid generating dust clouds.
Hazardous Combustion Products:
- May release carbon oxides, sulfur oxides, and nitrogen oxides upon combustion.
Firefighter Protection:
- Use self-contained breathing apparatus (SCBA) and wear full protective gear.
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