Description
CAPSO sodium salt is a buffer salt offered as PUFFERAN® with a minimum purity of 95 %, CAS number 102601-34-3 and empirical formula C₉H₁₈NO₄NaS. The molar mass is 259,3 g/mol and the boiling point is 601,2 °C, supporting calculation and documentation in buffer preparation. It is supplied in a 25 g plastic pack for laboratory use in performance-materials and buffer-salt applications. PUFFERAN® grade material from manufacturer Carl ROTH is intended where CAPSO chemistry in the sodium-salt form is specified for buffering systems. Stated purity, formula and molar mass allow accurate weighing and composition control when building working buffers. The compact 25 g plastic unit suits method development, stock solutions and routine bench consumption. Clear identity data including CAS 102601-34-3 help align orders and inventory with published protocols that call for CAPSO sodium salt. This presentation supports laboratories that standardise on defined buffer salts with transparent physical and chemical specifications.
This article is part of Buffers (other), in Buffers & pH solutions.
Key features
- Assay: ≥99 %
- Chloride (Cl): ≤0.01 %
- Sulphate (SO4): ≤0.01 %
- Heavy metals: ≤0.01 %
- CAS number: 102601-34-3
- Pack size: 25 g plastic
- Purity: min. 95 %
- Empirical formula: C₉H₁₈NO₄NaS
- Molar mass: 259,3 g/mol
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
DangerHazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
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Questions about CAPSO sodium salt, PUFFERAN®, min. 95 %, 25 g, plastic
What is this article?
CAPSO sodium salt, PUFFERAN®, min. 95 %, 25 g, plastic is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Buffers (other), inside Buffers & pH solutions, in Lab chemicals.
These are buffer solutions and salts that are not a pH calibration standard and not a named biological buffer. The pH, the concentration and the identity of the ions are the specification. A buffer has a capacity. Diluted too far, it is only salty water.
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 Buffers (other). The catalogue is Lab chemicals.
Shelves beside this one are pH buffers & conductivity standards and Biological buffers (Tris, HEPES, MOPS).
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.
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We deliver across the EU, usually within two to five working days. More is on Delivery across the EU. 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.
