Description
Phosphate buffer solution pH 6.8 R1 is a ready-to-use analytical reagent conforming to Reag. Ph. Eur. 4.1.3 (reference 4003400). It provides a defined phosphate buffer system at pH 6.8 for pharmaceutical, quality-control and general analytical laboratory work where European Pharmacopoeia reagent status is required. Physical data include a density of approximately 1 g/cm³ and a boiling point of 100 °C, consistent with an aqueous buffer matrix. The solution is offered in a 1 l plastic pack from manufacturer Carl ROTH and is positioned among special buffer solutions and pH-buffer solutions according to Ph. Eur. 4.1.3. Typical uses include sample preparation, method calibration and routine pH control in assays that specify this pharmacopoeial buffer. The plastic packaging supports safe handling and storage in the laboratory while the stated density and boiling point help users verify handling conditions. This grade is intended for analytical chemistry workflows that demand reproducible buffering at the stated pH without further on-site formulation.
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
- Grade: Reag. Ph. Eur. 4.1.3
- Reference: 4003400
- Technical Information Sheet:
- Safety Data Sheet:
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Questions about Phosphate buffer solution pH 6.8 R1, Reag. Ph. Eur. 4.1.3, 4003400, 1 l, plastic
What is this article?
Phosphate buffer solution pH 6.8 R1, Reag. Ph. Eur. 4.1.3, 4003400, 1 l, plastic 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 Lab chemicals.
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 Lab chemicals.
Shelves beside this one are Biological buffers (Tris, HEPES, MOPS) and Buffers (other).
What should I check before I order?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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