bleaching powder; chlorinated lime; calcium hypochlorite
Abbreviation of クロールカルキ. Refers to the chemical compound used as a disinfectant or bleaching agent. Common in household and water treatment contexts.
from German Kalk · from Dutch kalk
See also: クロールカルキ
This tap water smells strongly of chlorine.
We use chlorinated lime to disinfect the pool.
If the chlorine smell bothers you, using a water purifier is a good idea.
I let the tap water sit overnight to remove the chlorine.
消石灰 (slaked lime) is a different white powdery chemical often confused with カルキ (bleaching powder) because both are used for disinfection and gardening.
Katakana spelling is standard for this loanword; usually written in kana.
Ateji spelling; rarely used and mainly of historical interest.
From German 'Kalk' or Dutch 'kalk', originally meaning lime. In Japanese it specifically refers to chlorinated lime (bleaching powder).