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Reference Standard, Potassium Tetraoxalate Dihydrate

Dodavatel: CPACHEM

PH214.L5
ACSDPH214.L5EA 0 CZK
ACSDPH214.L5
Reference Standard, Potassium Tetraoxalate Dihydrate
Standardy Standardy kationické Standardy - draslík

Potassium tetraoxalate dihydrate [pH (S) = 1,67₉ (25 °C)] is a certified secondary standard reference material used as a calibration buffer standard for pH instruments or pH electrodes.


  • The product is delivered with a comprehensive, batch-specific certificate of analysis showing the relevant data for the quality management system
  • This buffer standard has a guaranteed shelf life of four years
  • Intended for extremely precise calibration, qualification and monitoring of pH instruments and routine assessment of their performance


The pH value of this Certipur® buffer solution is qualified using differential potentiometry with two platinum hydrogen electrodes against NIST & PTB primary reference materials pH (S) = 1,679 (25 °C). Potassium tetraoxalate dihydrate buffer is a Certified Reference Material (CRM) offered in neat format. Solution of this standard is prepared in-house following instructions in European Pharmacopoeia (Ph. Eur. 2.2.3).

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