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VWR® pH buffer capsules, 5 plastic tubes, 10 capsules/tube
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Specifications:
| Application | Electrochemistry | ||
| Storage Temperature | Room Temperature | ||
| Product Type | Buffer | Forms | Capsules |
| Product Brand | VWR | ||
| Product Grade | Analytical grade | ||
VWR® pH buffer capsules offer a convenient and reliable method for preparing accurate pH buffer solutions in the laboratory. Designed for rapid reconstitution, each capsule produces 100 mL of color-coded buffer solution upon dissolution in distilled or deionized water. With no added preservatives and extended shelf life, these buffers are ideal for routine calibration of pH meters and precision-sensitive analyses.
Key Features
- Ready-to-Use Format: Just dissolve one capsule in 100 mL of distilled water
- Colour Coded: Distinct coloring ensures fast visual identification (Orange for pH 4.01, Green for pH 7.00)
- Preservative-Free: High purity without chemical stabilizers or preservatives
- Extended Shelf Life: Stable in capsule form for long-term storage
- High Accuracy: ±0.02 pH at 25 °C ensures reliable instrument calibration
Available Buffer Capsule Variants
| Catalog # | pH Value | Accuracy (±) | Color | Final Volume | Packaging |
|---|---|---|---|---|---|
| 332732B | 4.01 | ±0.02 | Orange | 100 mL | 5 plastic tubes × 10 capsules/tube |
| 332742D | 7.00 | ±0.02 | Green | 100 mL | 5 plastic tubes × 10 capsules/tube |
Note: Capsules must be fully dissolved in 100 mL of distilled water. Stir until completely dissolved before use.
Applications
- pH Meter Calibration: Standard buffer solutions for daily and routine pH calibration
- Quality Control in Analytical Labs
- Environmental & Water Testing
- Educational Demonstrations: Simple preparation makes them ideal for classroom labs
- Pharmaceutical & Biotech Use: Where preservative-free buffers are preferred
VWR® pH Buffer Capsules provide a clean, efficient, and reliable way to prepare buffer solutions for pH meter calibration. Their long shelf life, absence of preservatives, and high accuracy make them an essential tool for labs requiring consistent pH calibration standards in a convenient capsule format.
- pH: pH 4.0 pH 7.0