Heptanes. Purification, purity, and freezing points of 7 heptanes, 16 octanes, 6 pentenes, cyclopentene, and 7 C9H12 alkylbenzenes of API-Standard and API-NBS series; by Anton J. Streiff, Evelyn T. Murphy, Vincent A. Sedlak, Charles B. Willingham, and Frederick D. Rossini.

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