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Buffer Solution Ph4.0 (Phthalate) is a acidic aqueous calibration buffer used in chemistry, analytical science and supervised educational laboratory work. The material is supplied as clear colourless liquid, and phthalate conjugate species resist changes in pH around the prepared reference point. Its chemical behaviour makes it relevant to specific protocols rather than every general-purpose experiment. For researchers and teaching staff, understanding the material’s reactivity, preparation and compatibility is important when selecting a suitable procedure. The 500ml Packs presentation identifies the requested pack size, not a separately verified purity or performance grade. Laboratories should confirm the actual supplier formulation, analytical suitability and current safety guidance before use, particularly when a procedure relies on a defined concentration, solvent, or specification. Appropriate instruction, equipment and waste management help support safe experimental practice.
Product Specifications
| Specification | Details |
|---|---|
| Appearance | Clear colourless liquid |
| Assay | 99% |
| Chemical Name | Buffer Solution Ph4.0 (Phthalate) |
| Alternate Names | Potassium hydrogen phthalate buffer; pH 4.0 reference buffer |
| Molecular Formula | Not applicable; phthalate buffer solution |
| Empirical Formula | Not applicable; mixture |
| CAS Number | Not applicable; formulated buffer |
| Molecular Weight | Not applicable; aqueous buffer |
| Grade | LR Laboratory Reagent |
Key Features of Buffer Solution Ph4.0 (Phthalate)
- Nominal pH 4.0 buffer solution
- Phthalate-based buffering system
- Supports calibration of compatible pH electrodes
- Temperature affects pH reference values
- Not interchangeable with every certified calibration standard
Laboratory Applications of Buffer Solution Ph4.0 (Phthalate)
- Routine pH meter calibration with method verification
- Checking response of pH electrodes
- Teaching buffer action in acid-base chemistry
- Instrument repeatability checks using fresh aliquots
- Comparison of pH measurements at different temperatures
Why Choose Lab Wale to Buy Buffer Solution Ph4.0 (Phthalate)
Lab Wale offers a way for school, college, university, analytical and research laboratories to source Buffer Solution Ph4.0 (Phthalate) alongside other scientific supplies. When choosing this product, verify the label, pack size, chemical identity and any stated solution strength against the laboratory method. For a prepared reagent, check the formulation and storage requirements before ordering. Lab Wale product information can assist with selection, but suitability for a particular experiment depends on the actual specification and the user’s validated procedure.
Frequently Asked Questions About Buffer Solution Ph4.0 (Phthalate)
What is Buffer Solution Ph4.0 (Phthalate) used for in a laboratory?
Buffer Solution Ph4.0 (Phthalate) is associated with routine ph meter calibration with method verification and checking response of ph electrodes. Other procedures may be appropriate only with a specified formulation or method. Laboratory personnel should check the intended analytical conditions and assess the relevant hazards before carrying out these activities.
What are the formula and CAS details of Buffer Solution Ph4.0 (Phthalate)?
The molecular or composition entry is Not applicable; phthalate buffer solution, and the CAS identification is Not applicable; formulated buffer. Because this is a prepared solution or mixture, its overall composition cannot be represented accurately by one molecular formula or molecular weight. Confirm its precise recipe with the supplier.
How does Buffer Solution Ph4.0 (Phthalate) behave in a typical experiment?
The relevant chemistry is that phthalate conjugate species resist changes in pH around the prepared reference point. Experimental observations also depend on sample composition, reagent concentration, temperature and the procedure. Use an appropriate control or reference where the method calls for one, and avoid interpreting a single colour change as conclusive evidence.
Can Buffer Solution Ph4.0 (Phthalate) be used in educational laboratories?
Its use may be appropriate in a supervised laboratory when the procedure is scientifically justified, the hazard assessment permits it and staff have suitable protective equipment. Some experiments or chemicals require advanced facilities and should not be presented as routine school practicals.
How should Buffer Solution Ph4.0 (Phthalate) be stored and handled?
Keep capped and uncontaminated at the supplier-recommended temperature; avoid returning used aliquots to the stock bottle. Wear standard laboratory PPE and avoid contaminating the calibration buffer. Follow the SDS for preservatives and other formulation components. Review the current Safety Data Sheet and the laboratory’s spill-response, segregation and disposal protocols before beginning work.
Storage Conditions for Buffer Solution Ph4.0 (Phthalate)
Keep capped and uncontaminated at the supplier-recommended temperature; avoid returning used aliquots to the stock bottle. Keep the container label legible and observe any supplier-specific shelf-life and material compatibility requirements. Segregate hazardous reagents from incompatible chemicals and restrict access as appropriate.
Precautions for Handling Buffer Solution Ph4.0 (Phthalate)
Review the current Safety Data Sheet before use. Wear standard laboratory PPE and avoid contaminating the calibration buffer. Follow the SDS for preservatives and other formulation components. Wear appropriate protective clothing, gloves and chemical splash eyewear, and use suitable ventilation for the specific procedure. Avoid inhalation, ingestion and unnecessary contact. Follow documented spill containment, emergency response and waste-disposal procedures. Supervise use in educational laboratories and do not assume all procedures are appropriate for general teaching.


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