Highlights
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We investigated the physical properties of magnetically treated water (MTW).
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The physical properties of MTW were changed by the loss of dissolved gasses during magnetic treatment.
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The partially-degassed water (PDW) by sonication had the similar gas content to the MTW.
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MTW made using PDW showed consistent changes of conductivity, infra-red absorption, and surface tension.
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We thought the physical properties of MTW should be measured under partially-degassed condition.