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Related Experiment Videos

Mothball differentiation: naphthalene from paradichlorobenzene.

J V Winkler, K Kulig, B H Rumack

    Annals of Emergency Medicine
    |January 1, 1985
    PubMed
    Summary

    Turpentine effectively differentiates toxic naphthalene from paradichlorobenzene mothballs. This rapid test aids physicians in assessing potential toxicity from unlabeled mothball ingestion.

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    Area of Science:

    • Toxicology
    • Analytical Chemistry

    Background:

    • Mothballs commonly contain naphthalene or paradichlorobenzene.
    • Differentiating these compounds is crucial due to toxicity differences.

    Purpose of the Study:

    • To develop a rapid, simple test to distinguish between naphthalene and paradichlorobenzene mothballs.
    • To aid in the preliminary assessment of mothball ingestion toxicity.

    Main Methods:

    • Mothballs (naphthalene and paradichlorobenzene) were dissolved in various solvents (isopropyl alcohol, ethanol, methanol, turpentine).
    • Dissolution rates were measured by reweighing mothballs after 30 and 60 minutes.

    Main Results:

    • Turpentine demonstrated a significantly faster dissolution rate for paradichlorobenzene compared to naphthalene (P < .001).
    • After 60 minutes, all paradichlorobenzene dissolved, while at least 25% of naphthalene remained.

    Conclusions:

    • Turpentine can be used as a simple, rapid preliminary test to differentiate mothball types.
    • This method assists physicians in evaluating potential toxicity in cases of unlabeled mothball ingestion.

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