Description
Phosphate buffer solution pH 7.0 R3 is a pharmacopoeia-grade analytical buffer listed as Reag. Ph. Eur. 4.1.3. As the R3 member of the pH 7.0 phosphate series, it serves laboratory methods that expressly require this designation rather than R1 or R2. The preparation has a density of approximately 1 g/cm³ and a boiling point of 100 °C. Packaging is a 1 l plastic unit with a weight of 1,300 kg, practical for repeated analytical dispensing. This phosphate buffer solution from manufacturer Carl ROTH is part of the special pH-buffer solutions produced for European Pharmacopoeia 4.1.3 applications. Analytical laboratories employ such buffers wherever a defined neutral phosphate system is needed for sample treatment or complementary wet-chemistry steps. Correct use of the R3 grade supports compliance with monographs and internal SOPs that differentiate the three pH 7.0 phosphate reagents. Clear identification on the pack reduces the risk of substituting an incorrect buffer variant during routine work.
This article is part of pH buffers & conductivity standards, in Buffers & pH solutions.
Key features
- Pack size: 1 l plastic
- Density: ~1 g/cm³
- Boiling point: 100 °C
- Designation: pH 7.0 R3
- pH value: 7,0
- UNSPSC: 41116107
- Technical Information Sheet:
- Safety Data Sheet:
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Questions about Phosphate buffer solution pH 7.0 R3
What is this article?
Phosphate buffer solution pH 7.0 R3 is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in pH buffers & conductivity standards, inside Buffers & pH solutions, in Produits chimiques.
A pH buffer for calibration has a stated pH at a stated temperature, often traceable. A conductivity standard has a stated conductivity. They are not general reagents and they should not be poured back into the bottle. The temperature of the measurement has to be the temperature on the label, or the meter has to compensate.
A buffer resists a change in pH when a little acid or base is added. It does that because a weak acid and its conjugate base are both present. A pH buffer used to calibrate a meter has a stated value at a stated temperature. A biological buffer such as Tris or HEPES is chosen because it holds the pH of a living system and does not poison it. Conductivity standards are the sister articles for a conductivity meter. The ions are on PubChem. Electrode calibration practice sits with EURAMET and BELAC.
Which category should I open next?
The category is Buffers & pH solutions. The sub-category is pH buffers & conductivity standards. The catalogue is Produits chimiques.
Shelves beside this one are Biological buffers (Tris, HEPES, MOPS) and Buffers (other).
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