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Methyl Orange Solutions Extra Pure
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Methyl Orange Solution Extra Pure is a ready-to-use, high-grade pH indicator solution widely utilized in acid-base titrations and general analytical chemistry. Known for its distinct and sharp color transition—from red in acidic environments to yellow in alkaline conditions—it provides rapid and clear visual cues for end-point detection. This extra pure formulation ensures maximum accuracy, reliability, and reproducibility in laboratory settings. It is especially effective in titrations involving strong acids and weak bases, commonly used in educational, research, and industrial labs. The solution is precisely prepared to standardized concentrations, eliminating the need for dilution or mixing, and is ideal for professionals seeking precision and ease of use.
Description
Methyl Orange Solutions Extra Pure
Primary Uses:
- pH Indicator in Acid-Base Titrations – Pre-prepared solution used for quick, accurate titration in laboratories; shifts from red (pH < 3.1) to yellow (pH > 4.4).
- Analytical Chemistry – Ideal for precise, reproducible acidity measurements in research, industrial labs, and quality control settings.
Secondary Uses:
- Teaching Aid – Used in classrooms and teaching labs to visually demonstrate pH changes and titration techniques.
- Visual pH Range Testing – Sometimes used in field kits or for rough pH estimation where high accuracy is not required.
- Colorimetric Analysis – Serves as a standard for colorimetric testing in certain qualitative analysis setups.
PRODUCT KEY FEATURES
1. Basic Identification Attributes
- Chemical Name: Methyl Orange Solution
- Synonyms: Methyl Orange Indicator Solution
- CAS Number: 547-58-0 (for methyl orange solute)
- Molecular Formula (solute): C₁₄H₁₄N₃NaO₃S
- Molecular Weight (solute): 327.33 g/mol
- Appearance: Orange-red solution
- Odor: Odorless or mild solvent-like (depending on solvent base: typically water or ethanol)
- Solubility: Fully soluble in water and ethanol
- Grade: Extra Pure
- pH Indicator Range: 3.1 (red) to 4.4 (yellow)
2. Safety & Hazard Attributes
- GHS Classification:
- May vary based on solvent (usually non-hazardous if aqueous)
- If ethanol-based: Flammable liquid (Category 2), eye irritant (Category 2A)
- Hazard Statements (aqueous):
- May cause eye or skin irritation in concentrated form
- Avoid inhalation of mist
- Hazard Statements (ethanol-based, if applicable):
- H225: Highly flammable liquid and vapor
- H319: Causes serious eye irritation
- Precautionary Statements:
- P280: Wear protective gloves/eye protection
- P210 (if flammable solvent): Keep away from heat/sparks/open flames
- P305+P351+P338: IF IN EYES: Rinse cautiously with water
- Personal Protective Equipment (PPE):
- Gloves
- Lab coat
- Safety goggles
- First Aid Measures:
- Inhalation: Move to fresh air if mist inhaled
- Skin Contact: Wash with soap and water
- Eye Contact: Rinse with water for several minutes
- Ingestion: Rinse mouth; not intended for ingestion
- Fire Hazards:
- Aqueous: Non-flammable
- Ethanol-based: Flammable – use foam, CO₂, or dry chemical extinguishers
3. Storage & Handling Attributes
- Storage Conditions:
- Store tightly closed in amber bottle
- Keep away from heat and light
- Store below 25 °C in a well-ventilated area
- Handling Tips:
- Use dropper or dispenser to minimize contamination
- Avoid contact with clothing and skin
4. Laboratory Applications
- Primary Uses:
- Acid-base indicator in titration (e.g., strong acid vs. weak base)
- Colorimetric analysis and endpoint detection
- Secondary Uses:
- Educational demonstrations in chemistry labs
- Reference standard in analytical methods
SAFETY HANDLING PRECAUTIONS
SAFETY PRECAUTIONS
Personal Protective Equipment (PPE):
- Wear a lab coat, nitrile gloves, and protective goggles.
- Use in a well-ventilated area or under a fume hood.
Handling:
- Avoid contact with skin, eyes, and clothing.
- Do not breathe vapors or mists.
- Wash hands thoroughly after use.
Storage:
- Store in a cool, dry, and well-ventilated area.
- Keep the container tightly closed and away from light and heat sources.
- Avoid contact with strong oxidizing agents.
FIRST AID MEASURES
Inhalation:
- Remove to fresh air immediately.
- Seek medical attention if breathing becomes difficult.
Skin Contact:
- Wash affected areas with soap and plenty of water.
- Remove contaminated clothing.
- Seek medical attention if irritation persists.
Eye Contact:
- Rinse cautiously with water for several minutes.
- Remove contact lenses if present and easy to do.
- Continue rinsing and seek medical advice if needed.
Ingestion:
- Rinse your mouth with plenty of water.
- Do not induce vomiting.
- Seek medical assistance immediately.
FIRE FIGHTING MEASURES
Flammability:
- Non-flammable under normal conditions, but may burn at high temperatures.
Extinguishing Media:
- Use water spray, CO₂, dry chemical, or foam.
Hazardous Combustion Products:
- May emit carbon oxides and nitrogen oxides when burned.
Firefighter Protection:
- Wear self-contained breathing apparatus (SCBA) and full protective clothing.
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