Beschrijving
Sodium phosphate buffer solution pH 7.5 0,25 M is a ready-to-use special buffer for analytical and pharmaceutical laboratory work. This aqueous sodium phosphate system is adjusted to pH 7.5 at a concentration of 0,25 M and is designated Reag. Ph. Eur. 4.1.3, aligning it with European Pharmacopoeia buffer requirements used in controlled analytical procedures. Physical data include a density of approximately 1 g/cm³ and a boiling point of 100 °C, reflecting the behaviour of a dilute aqueous preparation. The buffer is supplied in a 1 l plastic pack, giving a practical working volume for routine method setup, sample conditioning, and pH-controlled assays. This solution from manufacturer Carl ROTH sits within the range of pH-buffer solutions prepared according to Ph. Eur. 4.1.3 and is intended for laboratories that need a defined sodium phosphate medium at near-neutral pH. Users can employ it wherever a 0,25 M phosphate buffer at pH 7.5 is specified for titration support, reagent dilution, or general analytical buffering. The one-litre unit format simplifies inventory handling and repeated dispensing at the bench without intermediate preparation from dry salts.
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
- pH value: 7,5
- Concentration: 0,25 M
- UNSPSC: 41116107
- Technical Information Sheet:
- Safety Data Sheet:
Recent bekeken
Misschien vind je dit ook leuk
Questions about Sodium phosphate buffer solution pH 7.5 0,25 M, 1 l
What is this article?
Sodium phosphate buffer solution pH 7.5 0,25 M, 1 l 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 Chemicaliën.
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 Chemicaliën.
Shelves beside this one are Biological buffers (Tris, HEPES, MOPS) and Buffers (other).
What should I check before I order?
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.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.