ROMIL-SpA™ Super Purity Acids and Reagents Specifications

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

    low metals
    H255
    1LT H255M
    2½LT H255L
    Dgr H:360D-226-312+332-319
    P:201-210-302+352-305+351+338-308+313
    Wikipedia Page
    HCON(CH3)2 MW 73.09 BP 153.0°C d 0.95 CAS [68-12-2]
    Assay >99.9% Water <0.05% Residue <0.0001%
    Group 1 & 2 elements typically <0.1-<10 ppb
    Group 3 to 12 (transition) elements typically <0.1-<5 ppb
    Group 13, 14, 15 elements typically <0.1-<5 ppb
    Application: Environment Analysis (eg, using AAS, ICP-OES, ICP-MS), Trace Metal Analysis (for organic analysis and chromatography see ROMIL Code H253 Dimethylformamide SpS)
    1LT H255M
    2½LT H255L
    Dgr H:360D-226-312+332-319
    P:201-210-302+352-305+351+338-308+313

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.