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Medical consumables
Chemicals and reagents
Laboratory consumables
Areometers and thermometers
Household glass SIMAX
Personal protective equipment
Consumables for beauty salons
Packages
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    Хромотропова киселина динатриева сол дихидрат С433

    Europe

    Основно вещество мин. 99%

    За изследване на:
    Ag, ClO3-, Cr, Hg, NO2-, NO32-, Ti

    Hydrochloric Acid-Alcohol - Mixture (0.75 % HCl) solution for clinical diagnostics 257097

    itwreagents

    Hydrochloric Acid-Alcohol - Mixture (0.75 % HCl) solution for clinical diagnostics
    Specifications: Hydrochloric Acid: 0.75 %

    Methanol (Reag. Ph. Eur.) for HPLC gradient / UHPLC supergradient, ACS 221091

    itwreagents

    Minimum assay (G.C.): 99.9%
    Identity: IR passes test
    Density 20/4: 0.791-0.792
    Suitability: for gradient acc. to ACS: passes test
    Maximum limit of impurities
    APHA colour: 10
    Acidity: 0.0002 meq/g
    Alkalinity: 0.0002 meq/g
    Insoluble matter in H2O: passes test
    Non-volatile matter: 0.0002 %
    Reducing substance to KMnO4: passes test
    Darkened substances by H2SO4: passes test
    Carbonyl compounds (as CH3COCH3): 0.001%
    Base line drift (235 nm): 15 mUA
    Water (H2O): 0.03 %
    Gradient at 235 nm: 2 mUA
    Gradient at 254 nm: 1 mUA
    Fluorescence at 254 nm (as quinine): 1 ppb
    Fluorescence at 365 nm (as quinine): 0.5 ppb
    UV Spectrum (1cm cell; Ref.: water):
    Transmittance at 205 (Cut off) nm: ≥10%
    Transmittance at 210 nm: ≥30%
    Transmittance at 220 nm: ≥60%
    Transmittance at 230 nm: ≥80%
    Transmittance at 240 nm: ≥90%
    Transmittance at 260-400 nm: ≥98%
    Data of interest in HPLC:
    Rohrschneider Polarity: 5.1
    Eluotropic value e° (Al2O3): 0.95
    Sol. H2O in solv. at 20°C: miscible
    Microfiltered product (0.2 μm) and bottled under nitrogen atmosphere.
    Conforms to Methanol R1 and R2 according to Reag. Ph. Eur.

    1,2-Diaminocyclohexane-N,N,N,N'-tetraacetic acid for synthesis 133534

    itwreagents

    • Assay (Compl.): 97.5-100.5%
    • Identity: IR passes the test
    • Maximum impurity
    • limit Insoluble matter in NaOH: passes the test
    • Quenching residue (as SO4): 0.2%
    • Heavy metals (as Pb): 0.001%
    • Fe: 0.005%

    Potassium Chlorate (Reag. Ph. Eur.) for analysis, ACS 25552

    MERCK

    Panreac 131493

    Maximum limit of impurities
    Insoluble matter in H2O: 0.005 %
    Chloride (Cl): 0.001%
    Nitrogen compounds (as N): 0.001%
    Sulfate (SO4): 0.002%
    Bromate (BrO3): 0.015%
    Heavy metals (as Pb): 0.0005% 

    Sodium nitrate С276.1

    Europe

    • Assay: 99.0-100.5%
    • pH of 5% solution 5.5-8.0
    • Chlorides: 0.001%
    • Sulphates: 0.005%
    • Iron: 0.0001%
    • Nitrites (NO2): 0.0005%
    • Heavy metals: 0.0005%
    • Chlorates and perchlorates: 0.001%
    • Phosphates (PO4): 0.0005%
    • Calcium (Ca) and Magnesium (Mg): 0.005%
    • Potassium (K): 0.005%
    • Water-insoluble substances: 0.003%

    1,10-Phenanthroline 1-hydrate for analysis, ACS 131321

    itwreagents

    redox indicator
    Minimum assay (Perchl. Ac.): 99.0%
    Identity: IR passes test
    Suitability: as redox indicator: passes test
    Maximum limit of impurities
    Residue on ignition (as SO4): 0.1 %
    Sensitivity to Fe: passes test
    Cu: 0.002 %
    Fe: 0.001 %
    Ni: 0.002 %
    Pb: 0.002 %

    1,2-Dichloroethane (Reag. Ph. Eur.) for analysis, ACS 28840

    Europe

    Main substance min. 99%
    Water max.0.05%
    Free acids meq/g max. 0.0005
    Residue after evaporation max.0.005%
    Boiling point 83.48oC
    Melting point -35.66oC
    Solubility in water /20oC/ 8 g/l
    Free acids max.0.005%


    1,2-dichloroethane С111

    Europe

    Main substance: 99%
    Water: 0.05%
    Free acids: 0.0005
    Residue after evaporation: 0.005%
    Boiling point 83.48oC
    Melting point 35.66oC
    Solubility in water/20 C/ - 8 g/l
    Free acids: 0.005%

    Different packaging sizes

    1,3-Dichlorobenzene for synthesis 803225

    MERCK

    Assay (GC, area%) 99.5 %
    Density (d 20 °C/ 4 °C) 1.288
    Identity (IR) passes test

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