Congo Red Indicator – 125ml Packs

Congo Red Indicator Solution is a aqueous or hydroalcoholic azo-dye indicator used in selected scientific, educational and analytical laboratory procedures. Congo red undergoes a characteristic colour change under strongly acidic conditions; actual solution concentration and solvent are not stated. The material is supplied for laboratory use, where its suitability depends on the exact formulation, method requirements and documented specifications. In teaching environments it can help demonstrate relevant chemical behaviour and method design; in professional laboratories it may contribute to defined sample preparation, microscopy or experimental workflows. The product should be selected using its correct identity, compatible equipment and an up-to-date safety data sheet. Personnel should consider handling risks, compatibility and waste management before use. Solvent and dye concentration are not established.

Product Specifications

Key Features of Congo Red Indicator Solution

• Chemical category: aqueous or hydroalcoholic azo-dye indicator.
• Physical appearance: red liquid.
• Congo red undergoes a characteristic colour change under strongly acidic conditions; actual solution concentration and solvent are not stated.
• Listed identifiers: Not applicable; formulated solution (dye C32H22N6Na2O6S2); CAS reference: Not applicable to solution; dye CAS 573-58-0.
• Practical selection depends on formulation and method compatibility. Solvent and dye concentration are not established.

Laboratory Applications of Congo Red Indicator Solution

• Acid–base indicator demonstration in suitable pH ranges.
• Colour-change studies in analytical teaching.
• Selected dye adsorption experiments.
• Preparation of dye reference samples.
• Laboratory instruction in azo dye behaviour.

Why Choose Lab Wale to Buy Congo Red Indicator Solution

Lab Wale offers Congo Red Indicator Solution as a laboratory product listing for buyers working in schools, colleges, universities and scientific organisations. The product name and available specifications help purchasing teams assess whether the item matches a planned teaching activity, analytical method or research protocol. When sourcing through Lab Wale, verify the exact chemical identity, relevant safety documentation, packing details and suitability for the intended laboratory work before ordering. The chosen reagent should always be checked against method-specific requirements.

Frequently Asked Questions About Congo Red Indicator Solution

What is Congo Red Indicator Solution used for in a laboratory?

Congo Red Indicator Solution can support tasks such as acid–base indicator demonstration in suitable ph ranges and colour-change studies in analytical teaching. The correct method, equipment and protective measures depend on its actual formulation. Not every listed use is appropriate for every laboratory or teaching setting.

What are the chemical formula and CAS number of Congo Red Indicator Solution?

The formula entry is Not applicable; formulated solution (dye C32H22N6Na2O6S2), and the CAS information is Not applicable to solution; dye CAS 573-58-0. A mixture or solution does not have one meaningful molecular formula or formula mass. Exact substance identity, concentration and hydrate state must be checked against the supplied label and SDS.

How is Congo Red Indicator Solution used in teaching or analytical procedures?

Examples include selected dye adsorption experiments and preparation of dye reference samples. Use a validated or institution-approved procedure and confirm that the actual composition, concentration and grade meet its requirements. Supervision is particularly important where the material presents chemical or biological hazards.

What should be checked before purchasing Congo Red Indicator Solution?

Confirm the requested pack size, exact product identity and the intended laboratory method. Solvent and dye concentration are not established. Avoid relying on the product title alone where technical details are incomplete.

How should Congo Red Indicator Solution be handled and stored?

Keep closed, protected from light and contamination, using formulation-specific storage. Dye may have significant health hazards; prevent dust/aerosol exposure and avoid contact with skin or eyes. Consult the specific current SDS for exposure controls, emergency measures, incompatible substances and disposal rules. Never infer low hazard solely from a familiar chemical name or a small laboratory pack size.

Storage Conditions for Congo Red Indicator Solution

Keep closed, protected from light and contamination, using formulation-specific storage. Always use compatible, correctly labelled laboratory packaging and avoid cross-contamination. Follow the supplier’s SDS for segregation, shelf-life and temperature conditions. Check the container before use and do not transfer the product into unlabelled vessels.

Precautions for Handling Congo Red Indicator Solution

Dye may have significant health hazards; prevent dust/aerosol exposure and avoid contact with skin or eyes. Read the current product-specific Safety Data Sheet (SDS), wear suitable eye protection, protective clothing and chemically compatible gloves, and use effective ventilation where required. Avoid splashing, breathing vapours or aerosols, and unsafe mixing. Follow laboratory spill, waste disposal and emergency procedures, with appropriate supervision in educational settings.