"EU00017MERC"

Supplier: Merck

These conductivity sachets are convenient, easy to use and ensure accurate and reliable results both in the field or in the laboratory. The 30 ml sachets always provide a fresh solution preventing contamination by microorganisms, CO₂ or other substances. A conductivity sensor can be simply inserted into the sachet.

Supplier: Merck

Concentration after dilution to 1 liter: c(C₁₀H₁₄N₂Na₂O₈ ∙ 2 H₂O) = 0.1 mol/l

Supplier: Merck

Potassium hydroxide 1 mol/l (1 N) in aqueous solution, Titripur® volumetric solution (max. 0.00004% Ca), Supelco®

Supplier: Merck

Sodium thiosulphate 0,1 mol/l (0,1 N) in aqueous solution, Titripur® Reag. Ph. Eur., Reag. USP volumetric solution, Supelco®

Supplier: Merck

The standard solutions offered below can be adjusted to a final concentration for the measurement range of a test system by dilution. In addition, these standards can be used to prepare spiking solutions for the standard addition procedure. They provide an economic and simple method of analytical quality control.

Supplier: Merck

Hydrochloric acid 3.571 mol/l (N/0.28), Titripur® volumetric solution, Supelco®

Supplier: Merck

Standards dissolved in oil are ready-to-use calibration standards for the analysis of non-aqueous matrices.

Supplier: Merck

Barium perchlorate 0.005 mol/l in 2-propanol/water (80/20), Titripur® Reag. USP volumetric solution, Supelco®

Supplier: Merck

Ammonium cerium(IV) nitrate 0.1 mol/l (0.1 N) in aqueous solution, Titripur® Reag. Ph Eur volumetric solution, Supelco®

Supplier: Merck

EMSURE® grade solvents are suitable for a broad spectrum of classical lab applications, and are frequently used in regulated and highly demanding lab applications. EMSURE® provides worldwide best and most extensive product specifications. Merck declare the EMSURE® range to be in compliance with the ACS, with the reagent part of the European Pharmacopoeia (Reag. Ph Eur) and also with the ISO standards.

Supplier: Merck

In general, ion exchangers consist of a cross-linked polymer matrix with a uniform distribution of fixed ionic groups sited throughout the resin structure. These must be balanced by a similar number of ions of the opposite charge, (counter ions) to maintain electrical neutrality. Cation exchangers therefore, exchange and enrich only cations, anion exchangers only anions. In contrast adsorber resins have a non ionic, but depending on the structure, a somewhat polar character, and don't adsorb stoichiometrically both: anions, cations, as well as uncharged compounds.

Supplier: Merck

Spectromelt is based on lithium borates for fluxing digestion as granulate or as fused material used for X-ray fluorescence analysis (XRF).
The fused particles are spherical, have a small particle size distribution and a higher bulk density.
The material is easy to handle and has a low loss on ignition.