APEX LABS | LABORATORY CHEMICALS & INDICATORS
METHYL ORANGE INDICATOR (PH 3.1 – 4.4) 25 GMS – OXFORD LAB FINE CHEM
High-sensitivity pH indicator powder exhibiting a sharp red-orange to yellow transition for acid-base titrations.
Code: M-05942
25 Grams Pack
Oxford Lab Fine Chem
Product at a Glance
Methyl Orange Indicator (pH 3.1 – 4.4) 25 gms manufactured by Oxford Lab Fine Chem LLP (Product Code: M-05942) is a standard laboratory pH indicator powder designed for volumetric acid-base titrations and chemical testing. It exhibits a distinct color shift from red in acidic media to yellow in neutral and alkaline conditions. Supplied by Apex Labs with complete commercial GST tax invoices and Government e-Marketplace (GeM) portal support.
Note: Images for illustration purposes only. Actual bottle shape, cap color, or label design may vary based on manufacturer batches.
Product Overview: Methyl Orange Indicator Powder
Methyl Orange ($\text{C}_{14}\text{H}_{14}\text{N}_3\text{NaO}_3\text{S}$) is an essential azo dye indicator widely used in quantitative chemical analysis. Product Code M-05942 from Oxford Lab Fine Chem LLP is refined for high colorimetric sensitivity and sharp endpoint detection during neutralization titrations involving strong acids and weak or strong bases.
When prepared in aqueous indicator solution, it provides reliable visual feedback across its working transition range of pH 3.1 (red) to pH 4.4 (yellow), making it indispensable for educational laboratories, water testing facilities, and industrial quality control units.
Explore our comprehensive range of pH indicators, volumetric solutions, and fine chemicals in our laboratory chemicals catalog.
Key Specifications
PH TRANSITION RANGE
3.1 – 4.4
PRODUCT CODE
M-05942
COLOR CHANGE
Red to Yellow
PACK WEIGHT
25 Grams
Technical Specifications
| Specification Parameter | Technical Benchmark |
|---|---|
| Chemical Product Name | Methyl Orange Indicator / Sodium 4-((4-(dimethylamino)phenyl)azo)benzenesulfonate |
| Manufacturer Product Code | M-05942 |
| CAS Registration Number | 547-58-0 |
| pH Visual Transition Range | pH 3.1 to 4.4 |
| Color Change Profile | Red (Acidic, pH < 3.1) to Yellow (Alkaline, pH > 4.4) |
| Packaging Size | 25 Grams Container |
| Physical Appearance | Orange to orange-yellow crystalline powder |
| Solubility Profile | Soluble in Hot Water; Slightly soluble in Cold Water |
| Manufacturer | Oxford Lab Fine Chem LLP |
| Authorized Supplier | Apex Labs (Varanasi, UP, India) |
Key Product Features
Distinct Endpoint Transition
Provides a sharp, highly visible color shift from red to yellow at the acidic equivalence point.
Indicator Grade Purity
Refined to eliminate interfering dye contaminants on your Methyl Orange Indicator 25g, ensuring sharp visual titration end-points.
High Water Dissolution
Dissolves smoothly in warm distilled water to yield stable, reliable working aqueous indicator solutions.
Trusted Brand Manufacturer
Produced by Oxford Lab Fine Chem LLP under controlled quality standards for consistent analytical performance.
Primary Sector Applications
- Acid-Base Titrations: Ideal indicator for titrating strong acids against weak bases (e.g., hydrochloric acid vs. sodium carbonate).
- Water Analysis & Environmental QC: Determining total alkalinity (M-alkalinity) in water treatment and environmental samples.
- Educational Chemistry Practicals: Standard reagent used across school, college, and university laboratories for volumetric analysis.
- Industrial Quality Control: Testing acidity limits in chemical synthesis, textiles, and manufacturing processes.
B2B • INSTITUTIONAL • BULK PROCUREMENT
Bulk Procurement & GeM Supply Lines
Apex Labs supplies genuine laboratory indicators and reagents from Oxford Lab Fine Chem LLP with full commercial GST tax invoices for seamless Input Tax Credit (ITC) reconciliation.
We support universities, CSIR institutes, testing laboratories, and industrial R&D units via direct bulk supply or official tender fulfillment on the Government e-Marketplace (GeM) portal.
Product Specification & Direct Ordering
M-05942 Methyl Orange Indicator 25g Oxford Lab Fine Chem: Indicator powder for acid-base titrations with pH 3.1 (red) to 4.4 (yellow) transition.
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Frequently Asked Questions
1. How is a working methyl orange indicator solution prepared?
A standard 0.1% working solution is prepared by dissolving 0.1 g of methyl orange powder in 100 mL of warm distilled water and filtering if necessary.
2. What is the exact pH transition and color change of methyl orange?
It appears red in solutions below pH 3.1 and shifts to yellow in solutions above pH 4.4 (appearing orange near the midpoint around pH 3.7).
3. Can academic institutions and testing labs purchase this via GeM with GST invoices?
Yes, Apex Labs supplies all Oxford Lab Fine Chem products with itemized GST tax invoices for ITC compliance and supports direct bidding and institutional supply through the Government e-Marketplace (GeM) portal.
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