Seliwanoffs Reagent – 500ml Packs

Seliwanoffs Reagent is an acidic resorcinol-based qualitative reagent used to distinguish ketose carbohydrates by their relatively rapid colour development under controlled heating. It is supplied as a laboratory product for educational and analytical work where the specified method is appropriate. Correct identification of the active components, concentration and solvent system is particularly important for reproducibility and safe handling. The reagent should be selected according to the intended experiment rather than assumed suitable for every analytical technique. Measured aliquots, suitable controls and good laboratory practice help distinguish genuine chemical responses from interference or contamination. Where a mixture has no single chemical formula or formula mass, the constituent identity is indicated instead of a fictitious whole-mixture value. The container label and current safety guidance should be consulted before use in schools, colleges, universities or research laboratories.

Product Specifications

Key Features of Seliwanoffs Reagent

• Contains resorcinol in an acidic aqueous medium
• Develops a red colour preferentially with ketoses under prescribed test conditions
• Reaction timing helps distinguish ketose and aldose responses
• Supplied as a liquid reagent for measured laboratory testing
• Exact hydrochloric acid and resorcinol proportions are formulation-dependent

Laboratory Applications of Seliwanoffs Reagent

• Qualitative identification of ketose carbohydrates in teaching laboratories
• Demonstrating acid-catalysed carbohydrate dehydration chemistry
• Comparing relative colour development of fructose and glucose standards
• Supervised biochemical practicals on carbohydrate differentiation
• Method-specific observations using known positive and negative controls

Why Choose Lab Wale to Buy Seliwanoffs Reagent

Lab Wale provides Seliwanoffs Reagent as part of its laboratory chemical and scientific supply range for teaching institutions and research facilities. Product selection should take account of the indicated reagent identity, concentration, analytical method, and packaging requirements. For sensitive laboratory work, users should confirm any manufacturer-specific formulation details and review available technical and safety documentation. The appropriate product is one whose composition and grade match the intended experiment, not simply one with a similar name.

Frequently Asked Questions About Seliwanoffs Reagent

What is Seliwanoffs Reagent used for in a laboratory?

This product is mainly considered for qualitative identification of ketose carbohydrates in teaching laboratories, as well as related demonstrations or methods that call for its identified chemical components. Its use must remain within the documented reagent strength and validated procedure, especially in quantitative work.

Why does Seliwanoff’s reagent produce a red colour?

Acidic conditions form dehydration products from certain sugars which react with resorcinol to form coloured species; heating duration and concentrations affect the interpretation. For reliable observations, compare against appropriate reference controls and use the method-specified timing and conditions.

Does Seliwanoffs Reagent have one CAS number and molecular weight?

The relevant identifier is Not applicable to the mixture, and the formula information is Not applicable; aqueous mixture. For a formulated solution or mixture, a single whole-product molecular weight is not meaningful; ingredient identities and actual concentration should be checked separately.

Can Seliwanoffs Reagent be used in schools and research laboratories?

It may be appropriate in school, college, or research settings when the named procedure, required concentration and safety controls match the product. Hazardous reagents require trained supervision, suitable equipment and compliance with institutional chemical-handling policies.

How should Seliwanoffs Reagent be stored and handled?

Store tightly closed in a cool, ventilated chemical-storage area away from incompatible bases. Protect from excessive heat and follow the supplied formulation’s SDS; acid concentration can differ between manufacturers. Wear splash goggles, chemical-resistant gloves and laboratory clothing. Use a fume hood or suitable ventilatio Follow the current product safety data sheet and local hazardous-waste procedures.

Storage Conditions for Seliwanoffs Reagent

Store tightly closed in a cool, ventilated chemical-storage area away from incompatible bases. Protect from excessive heat and follow the supplied formulation’s SDS; acid concentration can differ between manufacturers. Keep clearly labelled and inspect the container regularly for leakage or change in appearance.

Precautions for Handling Seliwanoffs Reagent

Read the current Safety Data Sheet (SDS) before use. Wear splash goggles, chemical-resistant gloves and laboratory clothing. Use a fume hood or suitable ventilation for acid fumes, avoid skin contact and supervise heating. Consult the exact product SDS for spill neutralisation and disposal. Maintain competent supervision in educational laboratories, suitable chemical segregation and properly documented waste disposal.