Ar Methyl Orange
Analytical Indicator
Analytical Reagent

AR Grade Methyl Orange Indicator

Analytical Reagent grade methyl orange indicator manufactured for acid-base titrations, pH determination, and analytical chemistry. Our AR grade methyl orange provides reliable colorimetric properties for research applications, analytical procedures, and precision endpoint detection in acidic conditions.

  • Analytical Grade Purity
  • pH Range 3.1 - 4.4
  • Acid-Base Titrations
  • Research Laboratory Use
  • Clear Color Transition
  • Acidic Range Detection
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Technical Specifications

Chemical Formula: C₁₄H₁₄N₃NaO₃S
CAS Number: 547-58-0
EINECS Number: 208-925-3
Dye Content: ≥85% (AR Grade)
Physical State: Orange crystalline powder
Molecular Weight: 327.33 g/mol
pH Transition Range: 3.1 - 4.4
Color Change: Red (acidic) to Yellow (basic)
Solubility in Water: Freely soluble
Loss on Drying: ≤15.0%
Insoluble Matter: ≤0.2%
Chloride (Cl): ≤0.5%
Sulfate (SO₄): ≤1.0%
Zinc (Zn): ≤0.05%
Storage Conditions: Cool, dry place, protect from light
Packaging Options: 25g, 100g, 250g, 500g bottles

Applications

Acid-Base Titrations
pH Indicator
Analytical Chemistry
Volumetric Analysis
Educational Laboratories
Chemical Indicators
Qualitative Analysis
Quality Control Testing
Industrial Analysis
Environmental Testing
Pharmaceutical Analysis
Research Applications

Industry-Specific Grades

DRAVYOM offers specialized methyl orange grades tailored for specific analytical requirements, ensuring optimal performance and regulatory compliance across diverse laboratory applications.

AR Grade (Analytical Reagent)
Dye Content: ≥85% pH Range: 3.1-4.4 Insoluble Matter: ≤0.2% Application: General analytical procedures
ACS Grade (Certified)
Dye Content: ≥85% Chloride: ≤0.5% Sulfate: ≤1.0% Application: ACS certified analytical work
Educational Grade
Dye Content: ≥80% Suitable for Teaching Labs Cost-Effective for Students Application: University laboratories
Technical Grade
Dye Content: ≥75% Industrial Applications Process Monitoring Application: Industrial testing

Quality Standards

DRAVYOM's AR Grade Methyl Orange is manufactured under stringent quality control protocols, meeting international analytical standards including ACS, ISO, and pharmacopoeia specifications. Our analytical-grade production ensures consistent indicator performance and regulatory compliance.

ISO 9001:2015 Certified Manufacturing
ACS Grade Specifications
≥85% Dye Content
Precise pH Transition Range
Sharp Color Change
Batch-to-Batch Consistency
Traceable Certificate of Analysis
Light-Protected Storage

Advanced Chemical Properties & Performance

AR Grade Methyl Orange exhibits exceptional azo dye properties essential for acidimetric titrations. Its reliable transition range and distinctive color change make it ideal for strong acid-strong base volumetric analysis.

Indicator Properties
Transition Range: 3.1-4.4 pH units
pKa Value: 3.7 (25°C)
Color Change: Red (acidic) to Yellow (basic)
Endpoint Precision: ±0.1 pH unit accuracy
Analytical Performance
Titration Accuracy: ±0.05% relative precision
Detection Limit: 0.02% w/v solution
Temperature Stability: 10-50°C working range
Solution Stability: 6 months aqueous solution
Chemical Structure
Molecular Formula: C₁₄H₁₄N₃NaO₃S
Molecular Weight: 327.33 g/mol
Azo Group: -N=N- chromophore
Solubility: Highly soluble in water

Performance Characteristics

Performance metrics demonstrate Methyl Orange superiority in acidimetric applications with exceptional color contrast, reliable endpoints, and reproducibility across diverse strong acid titrations.

Color Contrast

Change: Distinct red-to-yellow transition

Clear visual distinction
Acidimetric Precision

Accuracy: ±0.05% relative deviation

Superior titration accuracy
pH Sensitivity

Range: 3.1-4.4 pH transition

Ideal acidic range coverage
Aqueous Stability

Duration: 6 months solution life

Extended working solutions

Safety Information

May cause eye and skin irritation. Avoid inhalation of powder and prolonged skin contact. Use standard laboratory protective equipment including safety goggles, gloves, and lab coats. Ensure adequate ventilation during use.

Eye Irritant
Skin Contact
Avoid Dust

Storage & Handling

Store in original containers in a cool, dry place away from strong oxidizing agents and direct sunlight. Keep containers tightly closed to prevent moisture absorption and contamination. Use clean measuring equipment.

Room temperature storage
Protect from direct sunlight
Moisture-proof containers
Away from oxidizing agents

Chemical Mechanisms & Reaction Pathways

Methyl orange functions as an acid-base indicator through structural transitions between protonated and deprotonated forms, enabling precise pH determination with distinct color changes in acidic conditions.

Protonation Mechanism

Hydrogen ion binding to azo nitrogen produces red coloration in acidic solutions

Acidic pH detection (pH < 3.1)
Deprotonation Process

Loss of proton shifts equilibrium to yellow anionic form in alkaline conditions

Alkaline pH indication (pH > 4.4)
Transition Zone

Orange coloration in transition pH range indicates equilibrium mixture

pH range 3.1-4.4 visualization
Visual Detection

Sharp color transition enables precise endpoint determination

Accurate titration endpoints

Regulatory Compliance & Documentation

Comprehensive regulatory compliance ensures global laboratory access with complete documentation packages supporting international analytical standards and pH testing method validations.

ACS Specifications

American Chemical Society analytical reagent standards compliance

ISO 3696 Standard

International standard for analytical grade reagent specifications

USP Grade Available

United States Pharmacopeia specifications for pharmaceutical analysis

REACH Registration

European Union chemical regulation compliance

EPA Method Support

Validated for EPA environmental analytical methods

SDS Documentation

Multi-language Safety Data Sheets (16 sections, GHS compliant)

Technical Support & Value-Added Services

DRAVYOM's analytical chemistry team provides comprehensive indicator method support, troubleshooting assistance, and analytical services to optimize methyl orange performance in your specific pH testing applications.

pH Method Development
  • Titration protocol optimization
  • Indicator concentration guidance
  • Endpoint detection training
  • Buffer system evaluation
Analytical Services
  • Indicator purity verification
  • Color transition analysis
  • pH range testing protocols
  • Method validation support
Technical Support
  • Titration troubleshooting consultation
  • Safe handling and preparation training
  • Laboratory protocol development
  • Quality control guidance
Supply Solutions
  • Consistent indicator quality batching
  • Emergency supply arrangements
  • Custom concentration solutions
  • Global distribution network

Environmental Impact & Sustainability

Our methyl orange production emphasizes environmental responsibility through sustainable manufacturing practices, waste reduction systems, and comprehensive environmental impact management for laboratory operations.

Dye Recovery

Advanced azo dye recovery and purification systems

Waste Minimization

Optimized synthesis reducing waste generation

Clean Production

Energy-efficient manufacturing with emission controls

Safe Disposal

Comprehensive neutralization and disposal guidance

ISO 14001

Environmental management system certified production

Container Recycling

Glass container return and recycling programs

Manufacturing Excellence & Quality Control

DRAVYOM's state-of-the-art indicator manufacturing facility employs advanced synthesis technology with continuous monitoring systems to ensure consistent methyl orange quality and performance across all production batches.

Synthesis Process

Controlled azo coupling reaction with precise purification protocols

Consistent color transition and pH sensitivity
Quality Testing

Multi-point pH validation including transition range and color assessment

Spectrophotometric verification and titration testing
Quality Systems

ISO 9001:2015 quality management with analytical laboratory accreditation

Continuous improvement and method validation
Packaging Control

Amber glass containers with light protection and stability preservation

Chemical stability and contamination prevention

Market Applications & Performance Data

Comprehensive analytical laboratory data demonstrating methyl orange effectiveness across diverse applications with quantified performance metrics and pH testing method validations.

Titration Applications
Precision: ±0.1 pH units accuracy Transition: Sharp color change Stability: 24-month shelf life
Educational Institutions
Curriculum Support: 300+ educational protocols Reproducibility: >99% consistent results Safety: Low toxicity formulation
Quality Control Labs
Reliability: 99.8% batch consistency Efficiency: Quick visual assessment Accuracy: Precise endpoint detection

DRAVYOM Competitive Advantages

Superior Color Response

Consistently sharp color transitions with precise pH endpoints for accurate analytical determinations

Reliable Supply

Guaranteed availability with strategic inventory management and consistent production scheduling

Analytical Expertise

Dedicated analytical chemistry team provides pH testing method development and titration support

Quality Assurance

Traceable certificates with comprehensive pH validation and analytical method support

Global Standards

International compliance with ACS, USP, and analytical specifications for worldwide acceptance

Partnership Approach

Collaborative relationships with analytical laboratories and custom indicator development services