| 摘要 |
A stable colloid in water is prepared by enrichment of the water with respect to parawater. The colloid is stored without contact with a surface that decomposes water into H and OH. Water enriched with respect to parawater is prepared by condensation of water vapor on a surface that does not decompose water into H and OH. The stability of the thus prepared colloid is broken by bringing the colloid in contact with a surface that decomposes water into H and OH.
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