Supplier: REAGECON

Phenolphthalein 0.1% in ethanol 80% Reag. Ph. Eur.

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Phenolphthalein 10 g/l in ethanol 96% (v/v) Reag. Ph. Eur. 1063703

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These conductivity standards are aqueous and so avoid the problems of matrix errors and high temperature dependency of nonaqueous conductivity standards.

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Colour standard, Primary solution blue (1 ml solution contains 62.4 mg CuSO₄.5H₂O) Reag. Ph. Eur., Glass bottle

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The potentials quoted are of platinum electrode with reference to Ag/AgCl (3 M KCl).

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Sodium hydroxide 0.1 mol/l (0.1 N) in aqueous solution volumetric solution low in carbonate

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Perchloric acid 0.1 mol/l (0.1 N) in aqueous solution Reag. Ph. Eur. 3003900

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Bromothymol blue sodium salt 0.05% in ethanol 20% (v/v) Reag. Ph. Eur. 1012901

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A complete range of certified control standards with values ranging from 133 to 26,6 µS.

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Concentrate to make arsenic standard solution (10 ppm as As) as outlined in Chapter 4 (4.1.2) of Ph. Eur.

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Potassium bromate Reag. Ph. Eur. 3004200

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Osmolality standards provide ease of use when calibrating all types of osmometers. All Osmolality standards are manufactured using high purity raw materials. These products are prepared gravimetrically on a weight/weight basis. Both solute (salts) and solvent (water) are weighed on a balance calibrated by using OIML traceable weights.

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Buffer solution, pH value: 4,00, ±0,01, Reference temperature: 20 °C, Plastic bottle

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Sodium chloride 8.7 g/l in aqueous solution

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Turbidity standards for ratio and non-ratio instruments composed of suspended polymer microspheres.

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Iron Standard, 10000 mg/L, Iron, Matrix: 0,5 M HNO₃, Application: AAS standards

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Hydrochloric acid 1 mol/l (1 N) volumetric solution

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2-Propanol

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Bromothymol blue 0.04% in aqueous solution pH-indicator

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Antimony Standard, 1000 mg/L, Antimony, Matrix: H₂O, Application: AAS standards

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Sodium hydroxide 2.5 mol/l (2.5 N) in aqueous solution volumetric solution

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Sulphuric acid 100 g/L (∼9.6%)

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Oxalic acid 0.05 mol/l (0.1 N) volumetric solution

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Hydrochloric acid 0.5 mol/l (0.5 N) volumetric solution

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Arsenic Standard, 1000 mg/L, Arsenic, Matrix: 1 M HCl, Application: AAS standards

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Sodium hydroxide 2 mol/l (2 N) in aqueous solution volumetric solution

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Lithium Standard, 1000 mg/L, Lithium, Matrix: 0,5 M HNO₃, Application: AAS standards

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Sulphuric acid 0.13 mol/l (0.26 N) in aqueous solution volumetric solution

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Reagecon's barium chloride 0,1 M according to Chinese Pharmacopoeia (ChP) is a fully factorised, high purity, stable product, developed and tested for titrations. This is an Analytical Volumetric Solution, also called titrant, standard titrant or standard solution. It is a reagent of known concentration, that is dispensed from a burette or other dispensing apparatus to a sample (analyte), until a reaction between the two liquids is judged to be complete. The product may be used for manual titrations, or more commonly automatic titrations also called potentiometric titration, to determine the end points by detection of any of several properties as detailed in several ChP monographs.

Supplier: REAGECON

Methyl orange USP