Arsenic hour


the time of day when both children and parents have come home but dinner has not yet been served, seen as being difficult due to everyone being tired and hungry

‘Arsenic hour’ was first used as a play on the words of Henry Wadsworth Longfellow’s poem “The Children’s Hour.”


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  • Arsenic trichloride

    a colorless or yellow, oily, poisonous liquid, AsCl 3 , used chiefly as an intermediate in the manufacture of organic arsenicals.

  • Arsenic trioxide

    a white, tasteless, amorphous, slightly water-soluble, poisonous powder, As 2 O 3 , used chiefly in the manufacture of pigments and glass and as an insecticide or weed-killer; arsenous acid. noun a white poisonous powder used in the manufacture of glass and as an insecticide, rat poison, and weedkiller. Formula: As2O3 Also called arsenic

  • Arsenic trisulfide

    a yellow or red crystalline substance, As 2 S 3 , occurring in nature as the mineral orpiment, and used as a pigment (king’s yellow) and in pyrotechnics.

  • Arsenic

    a grayish-white element having a metallic luster, vaporizing when heated, and forming poisonous compounds. Symbol: As; atomic weight: 74.92; atomic number: 33. . a mineral, the native element, occurring in white or gray masses. of or containing arsenic, especially in the pentavalent state. Contemporary Examples arsenic has been used as a poisoning agent since the […]

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