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HomeAll CategoriesLaboratory ChemicalsAnalytical StandardsScharlau pH 10.00 buffer solution at 25 °C, blue
Representative Scharlau packaging for Scharlau pH 10.00 buffer solution at 25 °C, blue — SO30100250

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ScharlauAnalytical Standards

Scharlau pH 10.00 buffer solution at 25 °C, blue

Manufacturer product code
SO3010

Scharlau SO30100250: sodium carbonate/sodium hydrogen carbonate buffer, blue-coloured, pH 10.00 at 25 °C. Published pH range 9.98–10.02, uncertainty ± 0.01; batch pH measured with a combination glass electrode using two-point calibration according to DIN 19268. Pack: 250 mL plastic bottle.

Applications
  • pH meter and electrode calibration at the appropriate temperature
  • Reference checks for pH measurements around pH 10.00
Packaging options
SO30100250 — x 250 ml :: Plastic bottle

Product specifications and documentation are confirmed against the requested reference before quotation.

Product information

Overview

Scharlau SO30100250 is a sodium carbonate/sodium hydrogen carbonate buffer with a reference pH of 10.00 at 25 °C. The formulation is blue-coloured. Its pH specification is 9.98–10.02, with an uncertainty of ± 0.01. The composition is 2.6 g sodium carbonate and 2.1 g sodium hydrogen carbonate per litre. Batch pH is measured with a combination glass electrode using two-point calibration according to DIN 19268. The density is ~ 1.00 g/cm³; the solution is miscible with water at 20 °C. Supplied in a 250 mL plastic bottle; temperature/pH reference values cover 0–50 °C.

  • Pack quantity / capacity: 250
  • Measurement unit: Millilitre (mL)
  • Package type: Bottle
Packaging and references
  • 250 mL · Bottle
  • SO30100250 — x 250 ml :: Plastic bottle
Selected specifications
  • Reference pH at 25 °C: 10.00
  • pH specification range: 9.98–10.02
  • Uncertainty: ± 0.01
  • Composition: 2.6 g sodium carbonate and 2.1 g sodium hydrogen carbonate per litre
  • Density: ~ 1.00 g/cm³
  • Miscibility with water at 20 °C: miscible
  • Batch pH measurement: combination glass electrode; two-point calibration according to DIN 19268
  • Temperature/pH values: 0 °C: 10.32; 5 °C: 10.25; 10 °C: 10.18; 15 °C: 10.12; 20 °C: 10.07; 25 °C: 10.00; 30 °C: 9.97; 35 °C: 9.91; 40 °C: 9.89; 45 °C: 9.86; 50 °C: 9.83
  • Colour: blue
  • Nominal pH (25 °C): 10.00
  • Classification in English UK REACH SDS: not classified under GB CLP.
  • English SDS: UK REACH edition; revision 06.09.2026.
  • ADR entries in DE SDS §14: UN number, class and packing group marked not applicable.
  • Manufacturer's representative package image; the applicable product label is identified by the manufacturer reference.
  • Technical data sheet available. Lot-specific certificate of analysis is supplied with the corresponding batch when available.
Applications
  • pH meter and electrode calibration at the appropriate temperature
  • Reference checks for pH measurements around pH 10.00

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