ROMIL-SpA™ Super Purity Acids and Reagents Specifications

ROMIL-SpA™ Super Purity Acids and Reagents
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  • Water SpA

    H951
    2½LT H951L
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    H2O MW 18.02 FP 0.0°C BP 100.0°C CAS [7732-18-5]
    Residue <0.0001%
    Resistivity (at time of manufacture) >18 MOhm @ 25°C
    Elemental impurities at time of manufacture:
    Ag, Ba, Be, Bi, Cd, Hg, Mo, Pb, Sb <0.5 ppb each
    Al, As, Co, Cr, Cu, Li, Mn, Ni, Sn, Sr, Th, Ti, U, V, Zr <1 ppb each
    Fe, Mg, Zn <2 ppb each
    B <10 ppb
    Ca, K, Na <20 ppb each
    Equivalent to ASTM D1193 Type II
    Application: Environment Analysis (eg, using AAS, ICP-OES, ICP-MS), Trace Metal Analysis (for HPLC and organic trace analysis see ROMIL Code H950 Water SpS), Ion Chromatography, Voltammetry
    Typical values, elemental impurities at time of manufacture (ppb):
    Ag<0.3Ca<1K<1Pb<0.02V<0.05
    Al<0.2Cd<0.01Li<0.03Sb<0.01Zn<0.2
    As<0.08Co<0.02Mg<0.2Sn<0.03Zr<0.01
    B<6.5Cr<0.03Mn<0.02Sr<0.02
    Ba<0.06Cu<0.07Mo<0.05Th<0.02
    Be<0.02Fe<0.1Na<1Ti<0.05
    Bi<0.02Hg<0.01Ni<0.05U<0.02
    2½LT H951L

Analysis Method

Most elements are determined by high resolution ICP‑MS using sample preconcentration. The results are an average of three aliquots subsampled from three samples representative of the batch. The samples are slowly evaporated to dryness. The resulting residue is reconstituted in a small volume of 2% Nitric Acid / 2% Hydrogen Peroxide ROMIL‑UpA. Operations are conducted under Class 100 or better clean-room conditions. For volatile elements (eg, Hg), the acid samples are diluted then directly injected into the ICP‑MS. Values below 3 times the standard deviation of the blank are shown with '<', no blank value is subtracted.