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Metrohm USA >> Products >> Reagents & Standards >> Standardized Titrants
Our titration reagents (titrants) are certified against the National Institute of Standards Technology (NIST) primary standards. We do not standardize against another reagent that has been itself standardized—the reagents are assayed using only traceable NIST Standard Reference Material using Metrohm titrators.
Certified reagents include:
- HCl
- AgNO3
- NaOH
- KOH in IPA
- HClO4 in glacial acetic acid
- Na2S2O3
- H2SO4
- Fe(NH4)2(SO4)2
- KOH in MeOH
- HCl in IPA
- ETDA
- KOH
- Iodine
- Other reagents and customized concentrations are available
Certification:
- Each case contains a certificate of analysis that documents the assay, including all relevant titration data
- Assays are performed by potentiometric, endpoint-seeking titration
- No color indicators are used
- Lot certification—involves the random selection of five bottles and the performance of a potentiometric titration directly against NIST Standard Reference Material
- The reported certified values are the mean of the five random samples
- The reported uncertainty of the certified value is estimated as 2s/sqrt(n)
- Solutions are homogeneous at the 95% confidence level—verified by the analysis of five random samples, tested in duplicate
- Certification and validation procedures consistent with ISO Guide 35 and Metrohm Application Bulletin No. 206
Packaging:
- Safe and convenient
- 1L bottles fit directly in the Metrohm® “Snap-in” Buret tray—no transfer, no spillage, no contamination
- 4L bottles connect in seconds to the “Snap-in” Burets or the Metrohm Dosino® buret
* Available only in the US.
