Revealing water’s secrets: deuterium depleted water

Chemistry Central Journal

Vladyslav V Goncharuk¹  Alina A Kavitskaya¹  Iryna Yu Romanyukina¹  Oleksandr A Loboda¹ 

[1] A.V. Dumansky Institute of Colloid Chemistry and Chemistry of Water, National Academy of Sciences, Kyiv, Ukraine

关键词: Water clusters;    Viscosity;    Surface tension;    Deuterium depleted water;   

Others  :  787890
DOI  :  10.1186/1752-153X-7-103

 received in 2013-02-14, accepted in 2013-05-28,  发布年份 2013

【 摘 要 】

Background

The anomalous properties of water have been of great interest for generations of scientists. However the impact of small amount of deuterium content which is always present in water has never been explored before. For the first time the fundamental properties of deuterium depleted (light) water at 4°C and 20°C are here presented.

Results

The obtained results show the important role of the deuterium in the properties of bulk water. At 4°C the lowest value of the kinematic viscosity (1.46 mm²/s) has been found for 96.5 ppm D/H ratio. The significant deviation in surface tension values has been observed in deuterium depleted water samples at the both temperature regimes. The experimental data provides direct evidence that density, surface tension and viscosity anomalies of water are caused by the presence of variable concentration of deuterium which leads to the formation of water clusters of different size and quantity.

Conclusions

The investigated properties of light water reveal the origin of the water anomalies. The new theoretical model of cluster formation with account of isotope effect is proposed.

【 授权许可】

   
2013 Goncharuk et al.; licensee Chemistry Central Ltd.

【 图 表 】

Figure 1.

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