Determination of Ethylene Oxide in Air: Experience in the use of Lubatt's Method

Hollingsworth, R L; Waling, B. F.

doi:10.1080/00968205509344017

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1957

1971

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“…The Lubatti method ( 4) is limited because it is a titrimetric procedure and requires a very large sample for determinations in the parts per million range. Its limitations for the determination of low concentrations of ethylene oxide in air were recently discussed by Hollingsworth and Waling (3). Apparently the only colorimetric method for epoxides that has been reported in the literature is the lepidine method of Gunther and co workers (3).…”

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Colorimetric Determination of Ethylene Oxide by Conversion to Formaldehyde

Critchfield¹,

Johnson²

1957

Anal. Chem.

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this line multiplied by -2.3R gave the heat of fusion of thianaphthene (3700 calories per mole), assuming an ideal solution. A similar plot using the distribution constant for naphthalene yielded a heat of fusion of 4500 cal. per mole for naphthalene, compared with 4496 cal. per mole (5). Table V lists these concentrations and the derived K and -log K values. Table VI lists the phase diagram data recalculated from smoothed values of K and shows that the original curves are in excellent agreement with the smoothed data

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